diff options
Diffstat (limited to 'externals/glfw-3.0.2/include/GLFW/glfw3.h')
| -rw-r--r-- | externals/glfw-3.0.2/include/GLFW/glfw3.h | 2282 |
1 files changed, 2282 insertions, 0 deletions
diff --git a/externals/glfw-3.0.2/include/GLFW/glfw3.h b/externals/glfw-3.0.2/include/GLFW/glfw3.h new file mode 100644 index 000000000..de2798b9f --- /dev/null +++ b/externals/glfw-3.0.2/include/GLFW/glfw3.h @@ -0,0 +1,2282 @@ +/************************************************************************* + * GLFW 3.0 - www.glfw.org + * A library for OpenGL, window and input + *------------------------------------------------------------------------ + * Copyright (c) 2002-2006 Marcus Geelnard + * Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org> + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would + * be appreciated but is not required. + * + * 2. Altered source versions must be plainly marked as such, and must not + * be misrepresented as being the original software. + * + * 3. This notice may not be removed or altered from any source + * distribution. + * + *************************************************************************/ + +#ifndef _glfw3_h_ +#define _glfw3_h_ + +#ifdef __cplusplus +extern "C" { +#endif + + +/************************************************************************* + * Doxygen documentation + *************************************************************************/ + +/*! @defgroup clipboard Clipboard support + */ +/*! @defgroup context Context handling + */ +/*! @defgroup error Error handling + */ +/*! @defgroup init Initialization and version information + */ +/*! @defgroup input Input handling + */ +/*! @defgroup monitor Monitor handling + * + * This is the reference documentation for monitor related functions and types. + * For more information, see the @ref monitor. + */ +/*! @defgroup time Time input + */ +/*! @defgroup window Window handling + * + * This is the reference documentation for window related functions and types, + * including creation, deletion and event polling. For more information, see + * the @ref window. + */ + + +/************************************************************************* + * Global definitions + *************************************************************************/ + +/* ------------------- BEGIN SYSTEM/COMPILER SPECIFIC -------------------- */ + +/* Please report any problems that you find with your compiler, which may + * be solved in this section! There are several compilers that I have not + * been able to test this file with yet. + * + * First: If we are we on Windows, we want a single define for it (_WIN32) + * (Note: For Cygwin the compiler flag -mwin32 should be used, but to + * make sure that things run smoothly for Cygwin users, we add __CYGWIN__ + * to the list of "valid Win32 identifiers", which removes the need for + * -mwin32) + */ +#if !defined(_WIN32) && (defined(__WIN32__) || defined(WIN32) || defined(__CYGWIN__)) + #define _WIN32 +#endif /* _WIN32 */ + +/* In order for extension support to be portable, we need to define an + * OpenGL function call method. We use the keyword APIENTRY, which is + * defined for Win32. (Note: Windows also needs this for <GL/gl.h>) + */ +#ifndef APIENTRY + #ifdef _WIN32 + #define APIENTRY __stdcall + #else + #define APIENTRY + #endif +#endif /* APIENTRY */ + +/* The following three defines are here solely to make some Windows-based + * <GL/gl.h> files happy. Theoretically we could include <windows.h>, but + * it has the major drawback of severely polluting our namespace. + */ + +/* Under Windows, we need WINGDIAPI defined */ +#if !defined(WINGDIAPI) && defined(_WIN32) + #if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__POCC__) + /* Microsoft Visual C++, Borland C++ Builder and Pelles C */ + #define WINGDIAPI __declspec(dllimport) + #elif defined(__LCC__) + /* LCC-Win32 */ + #define WINGDIAPI __stdcall + #else + /* Others (e.g. MinGW, Cygwin) */ + #define WINGDIAPI extern + #endif + #define GLFW_WINGDIAPI_DEFINED +#endif /* WINGDIAPI */ + +/* Some <GL/glu.h> files also need CALLBACK defined */ +#if !defined(CALLBACK) && defined(_WIN32) + #if defined(_MSC_VER) + /* Microsoft Visual C++ */ + #if (defined(_M_MRX000) || defined(_M_IX86) || defined(_M_ALPHA) || defined(_M_PPC)) && !defined(MIDL_PASS) + #define CALLBACK __stdcall + #else + #define CALLBACK + #endif + #else + /* Other Windows compilers */ + #define CALLBACK __stdcall + #endif + #define GLFW_CALLBACK_DEFINED +#endif /* CALLBACK */ + +/* Most GL/glu.h variants on Windows need wchar_t + * OpenGL/gl.h blocks the definition of ptrdiff_t by glext.h on OS X */ +#include <stddef.h> + + +/* ---------------- GLFW related system specific defines ----------------- */ + +#if defined(GLFW_DLL) && defined(_GLFW_BUILD_DLL) + /* GLFW_DLL is defined by users of GLFW when compiling programs that will link + * to the DLL version of the GLFW library. _GLFW_BUILD_DLL is defined by the + * GLFW configuration header when compiling the DLL version of the library. + */ + #error "You must not have both GLFW_DLL and _GLFW_BUILD_DLL defined" +#endif + +#if defined(_WIN32) && defined(_GLFW_BUILD_DLL) + + /* We are building a Win32 DLL */ + #define GLFWAPI __declspec(dllexport) + +#elif defined(_WIN32) && defined(GLFW_DLL) + + /* We are calling a Win32 DLL */ + #if defined(__LCC__) + #define GLFWAPI extern + #else + #define GLFWAPI __declspec(dllimport) + #endif + +#elif defined(__GNUC__) && defined(_GLFW_BUILD_DLL) + + #define GLFWAPI __attribute__((visibility("default"))) + +#else + + /* We are either building/calling a static lib or we are non-win32 */ + #define GLFWAPI + +#endif + +/* -------------------- END SYSTEM/COMPILER SPECIFIC --------------------- */ + +/* Include the chosen client API headers. + */ +#if defined(__APPLE_CC__) + #if defined(GLFW_INCLUDE_GLCOREARB) + #include <OpenGL/gl3.h> + #elif !defined(GLFW_INCLUDE_NONE) + #define GL_GLEXT_LEGACY + #include <OpenGL/gl.h> + #endif + #if defined(GLFW_INCLUDE_GLU) + #include <OpenGL/glu.h> + #endif +#else + #if defined(GLFW_INCLUDE_GLCOREARB) + #include <GL/glcorearb.h> + #elif defined(GLFW_INCLUDE_ES1) + #include <GLES/gl.h> + #elif defined(GLFW_INCLUDE_ES2) + #include <GLES2/gl2.h> + #elif defined(GLFW_INCLUDE_ES3) + #include <GLES3/gl3.h> + #elif !defined(GLFW_INCLUDE_NONE) + #include <GL/gl.h> + #endif + #if defined(GLFW_INCLUDE_GLU) + #include <GL/glu.h> + #endif +#endif + + +/************************************************************************* + * GLFW API tokens + *************************************************************************/ + +/*! @name GLFW version macros + * @{ */ +/*! @brief The major version number of the GLFW library. + * + * This is incremented when the API is changed in non-compatible ways. + * @ingroup init + */ +#define GLFW_VERSION_MAJOR 3 +/*! @brief The minor version number of the GLFW library. + * + * This is incremented when features are added to the API but it remains + * backward-compatible. + * @ingroup init + */ +#define GLFW_VERSION_MINOR 0 +/*! @brief The revision number of the GLFW library. + * + * This is incremented when a bug fix release is made that does not contain any + * API changes. + * @ingroup init + */ +#define GLFW_VERSION_REVISION 2 +/*! @} */ + +/*! @name Key and button actions + * @{ */ +/*! @brief The key or button was released. + * @ingroup input + */ +#define GLFW_RELEASE 0 +/*! @brief The key or button was pressed. + * @ingroup input + */ +#define GLFW_PRESS 1 +/*! @brief The key was held down until it repeated. + * @ingroup input + */ +#define GLFW_REPEAT 2 +/*! @} */ + +/*! @defgroup keys Keyboard keys + * + * These key codes are inspired by the *USB HID Usage Tables v1.12* (p. 53-60), + * but re-arranged to map to 7-bit ASCII for printable keys (function keys are + * put in the 256+ range). + * + * The naming of the key codes follow these rules: + * - The US keyboard layout is used + * - Names of printable alpha-numeric characters are used (e.g. "A", "R", + * "3", etc.) + * - For non-alphanumeric characters, Unicode:ish names are used (e.g. + * "COMMA", "LEFT_SQUARE_BRACKET", etc.). Note that some names do not + * correspond to the Unicode standard (usually for brevity) + * - Keys that lack a clear US mapping are named "WORLD_x" + * - For non-printable keys, custom names are used (e.g. "F4", + * "BACKSPACE", etc.) + * + * @ingroup input + * @{ + */ + +/* The unknown key */ +#define GLFW_KEY_UNKNOWN -1 + +/* Printable keys */ +#define GLFW_KEY_SPACE 32 +#define GLFW_KEY_APOSTROPHE 39 /* ' */ +#define GLFW_KEY_COMMA 44 /* , */ +#define GLFW_KEY_MINUS 45 /* - */ +#define GLFW_KEY_PERIOD 46 /* . */ +#define GLFW_KEY_SLASH 47 /* / */ +#define GLFW_KEY_0 48 +#define GLFW_KEY_1 49 +#define GLFW_KEY_2 50 +#define GLFW_KEY_3 51 +#define GLFW_KEY_4 52 +#define GLFW_KEY_5 53 +#define GLFW_KEY_6 54 +#define GLFW_KEY_7 55 +#define GLFW_KEY_8 56 +#define GLFW_KEY_9 57 +#define GLFW_KEY_SEMICOLON 59 /* ; */ +#define GLFW_KEY_EQUAL 61 /* = */ +#define GLFW_KEY_A 65 +#define GLFW_KEY_B 66 +#define GLFW_KEY_C 67 +#define GLFW_KEY_D 68 +#define GLFW_KEY_E 69 +#define GLFW_KEY_F 70 +#define GLFW_KEY_G 71 +#define GLFW_KEY_H 72 +#define GLFW_KEY_I 73 +#define GLFW_KEY_J 74 +#define GLFW_KEY_K 75 +#define GLFW_KEY_L 76 +#define GLFW_KEY_M 77 +#define GLFW_KEY_N 78 +#define GLFW_KEY_O 79 +#define GLFW_KEY_P 80 +#define GLFW_KEY_Q 81 +#define GLFW_KEY_R 82 +#define GLFW_KEY_S 83 +#define GLFW_KEY_T 84 +#define GLFW_KEY_U 85 +#define GLFW_KEY_V 86 +#define GLFW_KEY_W 87 +#define GLFW_KEY_X 88 +#define GLFW_KEY_Y 89 +#define GLFW_KEY_Z 90 +#define GLFW_KEY_LEFT_BRACKET 91 /* [ */ +#define GLFW_KEY_BACKSLASH 92 /* \ */ +#define GLFW_KEY_RIGHT_BRACKET 93 /* ] */ +#define GLFW_KEY_GRAVE_ACCENT 96 /* ` */ +#define GLFW_KEY_WORLD_1 161 /* non-US #1 */ +#define GLFW_KEY_WORLD_2 162 /* non-US #2 */ + +/* Function keys */ +#define GLFW_KEY_ESCAPE 256 +#define GLFW_KEY_ENTER 257 +#define GLFW_KEY_TAB 258 +#define GLFW_KEY_BACKSPACE 259 +#define GLFW_KEY_INSERT 260 +#define GLFW_KEY_DELETE 261 +#define GLFW_KEY_RIGHT 262 +#define GLFW_KEY_LEFT 263 +#define GLFW_KEY_DOWN 264 +#define GLFW_KEY_UP 265 +#define GLFW_KEY_PAGE_UP 266 +#define GLFW_KEY_PAGE_DOWN 267 +#define GLFW_KEY_HOME 268 +#define GLFW_KEY_END 269 +#define GLFW_KEY_CAPS_LOCK 280 +#define GLFW_KEY_SCROLL_LOCK 281 +#define GLFW_KEY_NUM_LOCK 282 +#define GLFW_KEY_PRINT_SCREEN 283 +#define GLFW_KEY_PAUSE 284 +#define GLFW_KEY_F1 290 +#define GLFW_KEY_F2 291 +#define GLFW_KEY_F3 292 +#define GLFW_KEY_F4 293 +#define GLFW_KEY_F5 294 +#define GLFW_KEY_F6 295 +#define GLFW_KEY_F7 296 +#define GLFW_KEY_F8 297 +#define GLFW_KEY_F9 298 +#define GLFW_KEY_F10 299 +#define GLFW_KEY_F11 300 +#define GLFW_KEY_F12 301 +#define GLFW_KEY_F13 302 +#define GLFW_KEY_F14 303 +#define GLFW_KEY_F15 304 +#define GLFW_KEY_F16 305 +#define GLFW_KEY_F17 306 +#define GLFW_KEY_F18 307 +#define GLFW_KEY_F19 308 +#define GLFW_KEY_F20 309 +#define GLFW_KEY_F21 310 +#define GLFW_KEY_F22 311 +#define GLFW_KEY_F23 312 +#define GLFW_KEY_F24 313 +#define GLFW_KEY_F25 314 +#define GLFW_KEY_KP_0 320 +#define GLFW_KEY_KP_1 321 +#define GLFW_KEY_KP_2 322 +#define GLFW_KEY_KP_3 323 +#define GLFW_KEY_KP_4 324 +#define GLFW_KEY_KP_5 325 +#define GLFW_KEY_KP_6 326 +#define GLFW_KEY_KP_7 327 +#define GLFW_KEY_KP_8 328 +#define GLFW_KEY_KP_9 329 +#define GLFW_KEY_KP_DECIMAL 330 +#define GLFW_KEY_KP_DIVIDE 331 +#define GLFW_KEY_KP_MULTIPLY 332 +#define GLFW_KEY_KP_SUBTRACT 333 +#define GLFW_KEY_KP_ADD 334 +#define GLFW_KEY_KP_ENTER 335 +#define GLFW_KEY_KP_EQUAL 336 +#define GLFW_KEY_LEFT_SHIFT 340 +#define GLFW_KEY_LEFT_CONTROL 341 +#define GLFW_KEY_LEFT_ALT 342 +#define GLFW_KEY_LEFT_SUPER 343 +#define GLFW_KEY_RIGHT_SHIFT 344 +#define GLFW_KEY_RIGHT_CONTROL 345 +#define GLFW_KEY_RIGHT_ALT 346 +#define GLFW_KEY_RIGHT_SUPER 347 +#define GLFW_KEY_MENU 348 +#define GLFW_KEY_LAST GLFW_KEY_MENU + +/*! @} */ + +/*! @defgroup mods Modifier key flags + * @ingroup input + * @{ */ + +/*! @brief If this bit is set one or more Shift keys were held down. + */ +#define GLFW_MOD_SHIFT 0x0001 +/*! @brief If this bit is set one or more Control keys were held down. + */ +#define GLFW_MOD_CONTROL 0x0002 +/*! @brief If this bit is set one or more Alt keys were held down. + */ +#define GLFW_MOD_ALT 0x0004 +/*! @brief If this bit is set one or more Super keys were held down. + */ +#define GLFW_MOD_SUPER 0x0008 + +/*! @} */ + +/*! @defgroup buttons Mouse buttons + * @ingroup input + * @{ */ +#define GLFW_MOUSE_BUTTON_1 0 +#define GLFW_MOUSE_BUTTON_2 1 +#define GLFW_MOUSE_BUTTON_3 2 +#define GLFW_MOUSE_BUTTON_4 3 +#define GLFW_MOUSE_BUTTON_5 4 +#define GLFW_MOUSE_BUTTON_6 5 +#define GLFW_MOUSE_BUTTON_7 6 +#define GLFW_MOUSE_BUTTON_8 7 +#define GLFW_MOUSE_BUTTON_LAST GLFW_MOUSE_BUTTON_8 +#define GLFW_MOUSE_BUTTON_LEFT GLFW_MOUSE_BUTTON_1 +#define GLFW_MOUSE_BUTTON_RIGHT GLFW_MOUSE_BUTTON_2 +#define GLFW_MOUSE_BUTTON_MIDDLE GLFW_MOUSE_BUTTON_3 +/*! @} */ + +/*! @defgroup joysticks Joysticks + * @ingroup input + * @{ */ +#define GLFW_JOYSTICK_1 0 +#define GLFW_JOYSTICK_2 1 +#define GLFW_JOYSTICK_3 2 +#define GLFW_JOYSTICK_4 3 +#define GLFW_JOYSTICK_5 4 +#define GLFW_JOYSTICK_6 5 +#define GLFW_JOYSTICK_7 6 +#define GLFW_JOYSTICK_8 7 +#define GLFW_JOYSTICK_9 8 +#define GLFW_JOYSTICK_10 9 +#define GLFW_JOYSTICK_11 10 +#define GLFW_JOYSTICK_12 11 +#define GLFW_JOYSTICK_13 12 +#define GLFW_JOYSTICK_14 13 +#define GLFW_JOYSTICK_15 14 +#define GLFW_JOYSTICK_16 15 +#define GLFW_JOYSTICK_LAST GLFW_JOYSTICK_16 +/*! @} */ + +/*! @defgroup errors Error codes + * @ingroup error + * @{ */ +/*! @brief GLFW has not been initialized. + */ +#define GLFW_NOT_INITIALIZED 0x00010001 +/*! @brief No context is current for this thread. + */ +#define GLFW_NO_CURRENT_CONTEXT 0x00010002 +/*! @brief One of the enum parameters for the function was given an invalid + * enum. + */ +#define GLFW_INVALID_ENUM 0x00010003 +/*! @brief One of the parameters for the function was given an invalid value. + */ +#define GLFW_INVALID_VALUE 0x00010004 +/*! @brief A memory allocation failed. + */ +#define GLFW_OUT_OF_MEMORY 0x00010005 +/*! @brief GLFW could not find support for the requested client API on the + * system. + */ +#define GLFW_API_UNAVAILABLE 0x00010006 +/*! @brief The requested client API version is not available. + */ +#define GLFW_VERSION_UNAVAILABLE 0x00010007 +/*! @brief A platform-specific error occurred that does not match any of the + * more specific categories. + */ +#define GLFW_PLATFORM_ERROR 0x00010008 +/*! @brief The clipboard did not contain data in the requested format. + */ +#define GLFW_FORMAT_UNAVAILABLE 0x00010009 +/*! @} */ + +#define GLFW_FOCUSED 0x00020001 +#define GLFW_ICONIFIED 0x00020002 +#define GLFW_RESIZABLE 0x00020003 +#define GLFW_VISIBLE 0x00020004 +#define GLFW_DECORATED 0x00020005 + +#define GLFW_RED_BITS 0x00021001 +#define GLFW_GREEN_BITS 0x00021002 +#define GLFW_BLUE_BITS 0x00021003 +#define GLFW_ALPHA_BITS 0x00021004 +#define GLFW_DEPTH_BITS 0x00021005 +#define GLFW_STENCIL_BITS 0x00021006 +#define GLFW_ACCUM_RED_BITS 0x00021007 +#define GLFW_ACCUM_GREEN_BITS 0x00021008 +#define GLFW_ACCUM_BLUE_BITS 0x00021009 +#define GLFW_ACCUM_ALPHA_BITS 0x0002100A +#define GLFW_AUX_BUFFERS 0x0002100B +#define GLFW_STEREO 0x0002100C +#define GLFW_SAMPLES 0x0002100D +#define GLFW_SRGB_CAPABLE 0x0002100E +#define GLFW_REFRESH_RATE 0x0002100F + +#define GLFW_CLIENT_API 0x00022001 +#define GLFW_CONTEXT_VERSION_MAJOR 0x00022002 +#define GLFW_CONTEXT_VERSION_MINOR 0x00022003 +#define GLFW_CONTEXT_REVISION 0x00022004 +#define GLFW_CONTEXT_ROBUSTNESS 0x00022005 +#define GLFW_OPENGL_FORWARD_COMPAT 0x00022006 +#define GLFW_OPENGL_DEBUG_CONTEXT 0x00022007 +#define GLFW_OPENGL_PROFILE 0x00022008 + +#define GLFW_OPENGL_API 0x00030001 +#define GLFW_OPENGL_ES_API 0x00030002 + +#define GLFW_NO_ROBUSTNESS 0 +#define GLFW_NO_RESET_NOTIFICATION 0x00031001 +#define GLFW_LOSE_CONTEXT_ON_RESET 0x00031002 + +#define GLFW_OPENGL_ANY_PROFILE 0 +#define GLFW_OPENGL_CORE_PROFILE 0x00032001 +#define GLFW_OPENGL_COMPAT_PROFILE 0x00032002 + +#define GLFW_CURSOR 0x00033001 +#define GLFW_STICKY_KEYS 0x00033002 +#define GLFW_STICKY_MOUSE_BUTTONS 0x00033003 + +#define GLFW_CURSOR_NORMAL 0x00034001 +#define GLFW_CURSOR_HIDDEN 0x00034002 +#define GLFW_CURSOR_DISABLED 0x00034003 + +#define GLFW_CONNECTED 0x00040001 +#define GLFW_DISCONNECTED 0x00040002 + + +/************************************************************************* + * GLFW API types + *************************************************************************/ + +/*! @brief Client API function pointer type. + * + * Generic function pointer used for returning client API function pointers + * without forcing a cast from a regular pointer. + * + * @ingroup context + */ +typedef void (*GLFWglproc)(void); + +/*! @brief Opaque monitor object. + * + * Opaque monitor object. + * + * @ingroup monitor + */ +typedef struct GLFWmonitor GLFWmonitor; + +/*! @brief Opaque window object. + * + * Opaque window object. + * + * @ingroup window + */ +typedef struct GLFWwindow GLFWwindow; + +/*! @brief The function signature for error callbacks. + * + * This is the function signature for error callback functions. + * + * @param[in] error An [error code](@ref errors). + * @param[in] description A UTF-8 encoded string describing the error. + * + * @sa glfwSetErrorCallback + * + * @ingroup error + */ +typedef void (* GLFWerrorfun)(int,const char*); + +/*! @brief The function signature for window position callbacks. + * + * This is the function signature for window position callback functions. + * + * @param[in] window The window that the user moved. + * @param[in] xpos The new x-coordinate, in screen coordinates, of the + * upper-left corner of the client area of the window. + * @param[in] ypos The new y-coordinate, in screen coordinates, of the + * upper-left corner of the client area of the window. + * + * @sa glfwSetWindowPosCallback + * + * @ingroup window + */ +typedef void (* GLFWwindowposfun)(GLFWwindow*,int,int); + +/*! @brief The function signature for window resize callbacks. + * + * This is the function signature for window size callback functions. + * + * @param[in] window The window that the user resized. + * @param[in] width The new width, in screen coordinates, of the window. + * @param[in] height The new height, in screen coordinates, of the window. + * + * @sa glfwSetWindowSizeCallback + * + * @ingroup window + */ +typedef void (* GLFWwindowsizefun)(GLFWwindow*,int,int); + +/*! @brief The function signature for window close callbacks. + * + * This is the function signature for window close callback functions. + * + * @param[in] window The window that the user attempted to close. + * + * @sa glfwSetWindowCloseCallback + * + * @ingroup window + */ +typedef void (* GLFWwindowclosefun)(GLFWwindow*); + +/*! @brief The function signature for window content refresh callbacks. + * + * This is the function signature for window refresh callback functions. + * + * @param[in] window The window whose content needs to be refreshed. + * + * @sa glfwSetWindowRefreshCallback + * + * @ingroup window + */ +typedef void (* GLFWwindowrefreshfun)(GLFWwindow*); + +/*! @brief The function signature for window focus/defocus callbacks. + * + * This is the function signature for window focus callback functions. + * + * @param[in] window The window that was focused or defocused. + * @param[in] focused `GL_TRUE` if the window was focused, or `GL_FALSE` if + * it was defocused. + * + * @sa glfwSetWindowFocusCallback + * + * @ingroup window + */ +typedef void (* GLFWwindowfocusfun)(GLFWwindow*,int); + +/*! @brief The function signature for window iconify/restore callbacks. + * + * This is the function signature for window iconify/restore callback + * functions. + * + * @param[in] window The window that was iconified or restored. + * @param[in] iconified `GL_TRUE` if the window was iconified, or `GL_FALSE` + * if it was restored. + * + * @sa glfwSetWindowIconifyCallback + * + * @ingroup window + */ +typedef void (* GLFWwindowiconifyfun)(GLFWwindow*,int); + +/*! @brief The function signature for framebuffer resize callbacks. + * + * This is the function signature for framebuffer resize callback + * functions. + * + * @param[in] window The window whose framebuffer was resized. + * @param[in] width The new width, in pixels, of the framebuffer. + * @param[in] height The new height, in pixels, of the framebuffer. + * + * @sa glfwSetFramebufferSizeCallback + * + * @ingroup window + */ +typedef void (* GLFWframebuffersizefun)(GLFWwindow*,int,int); + +/*! @brief The function signature for mouse button callbacks. + * + * This is the function signature for mouse button callback functions. + * + * @param[in] window The window that received the event. + * @param[in] button The [mouse button](@ref buttons) that was pressed or + * released. + * @param[in] action One of `GLFW_PRESS` or `GLFW_RELEASE`. + * @param[in] mods Bit field describing which [modifier keys](@ref mods) were + * held down. + * + * @sa glfwSetMouseButtonCallback + * + * @ingroup input + */ +typedef void (* GLFWmousebuttonfun)(GLFWwindow*,int,int,int); + +/*! @brief The function signature for cursor position callbacks. + * + * This is the function signature for cursor position callback functions. + * + * @param[in] window The window that received the event. + * @param[in] xpos The new x-coordinate of the cursor. + * @param[in] ypos The new y-coordinate of the cursor. + * + * @sa glfwSetCursorPosCallback + * + * @ingroup input + */ +typedef void (* GLFWcursorposfun)(GLFWwindow*,double,double); + +/*! @brief The function signature for cursor enter/leave callbacks. + * + * This is the function signature for cursor enter/leave callback functions. + * + * @param[in] window The window that received the event. + * @param[in] entered `GL_TRUE` if the cursor entered the window's client + * area, or `GL_FALSE` if it left it. + * + * @sa glfwSetCursorEnterCallback + * + * @ingroup input + */ +typedef void (* GLFWcursorenterfun)(GLFWwindow*,int); + +/*! @brief The function signature for scroll callbacks. + * + * This is the function signature for scroll callback functions. + * + * @param[in] window The window that received the event. + * @param[in] xoffset The scroll offset along the x-axis. + * @param[in] yoffset The scroll offset along the y-axis. + * + * @sa glfwSetScrollCallback + * + * @ingroup input + */ +typedef void (* GLFWscrollfun)(GLFWwindow*,double,double); + +/*! @brief The function signature for keyboard key callbacks. + * + * This is the function signature for keyboard key callback functions. + * + * @param[in] window The window that received the event. + * @param[in] key The [keyboard key](@ref keys) that was pressed or released. + * @param[in] scancode The system-specific scancode of the key. + * @param[in] action @ref GLFW_PRESS, @ref GLFW_RELEASE or @ref GLFW_REPEAT. + * @param[in] mods Bit field describing which [modifier keys](@ref mods) were + * held down. + * + * @sa glfwSetKeyCallback + * + * @ingroup input + */ +typedef void (* GLFWkeyfun)(GLFWwindow*,int,int,int,int); + +/*! @brief The function signature for Unicode character callbacks. + * + * This is the function signature for Unicode character callback functions. + * + * @param[in] window The window that received the event. + * @param[in] character The Unicode code point of the character. + * + * @sa glfwSetCharCallback + * + * @ingroup input + */ +typedef void (* GLFWcharfun)(GLFWwindow*,unsigned int); + +/*! @brief The function signature for monitor configuration callbacks. + * + * This is the function signature for monitor configuration callback functions. + * + * @param[in] monitor The monitor that was connected or disconnected. + * @param[in] event One of `GLFW_CONNECTED` or `GLFW_DISCONNECTED`. + * + * @sa glfwSetMonitorCallback + * + * @ingroup monitor + */ +typedef void (* GLFWmonitorfun)(GLFWmonitor*,int); + +/*! @brief Video mode type. + * + * This describes a single video mode. + * + * @ingroup monitor + */ +typedef struct +{ + /*! The width, in screen coordinates, of the video mode. + */ + int width; + /*! The height, in screen coordinates, of the video mode. + */ + int height; + /*! The bit depth of the red channel of the video mode. + */ + int redBits; + /*! The bit depth of the green channel of the video mode. + */ + int greenBits; + /*! The bit depth of the blue channel of the video mode. + */ + int blueBits; + /*! The refresh rate, in Hz, of the video mode. + */ + int refreshRate; +} GLFWvidmode; + +/*! @brief Gamma ramp. + * + * This describes the gamma ramp for a monitor. + * + * @sa glfwGetGammaRamp glfwSetGammaRamp + * + * @ingroup monitor + */ +typedef struct +{ + /*! An array of value describing the response of the red channel. + */ + unsigned short* red; + /*! An array of value describing the response of the green channel. + */ + unsigned short* green; + /*! An array of value describing the response of the blue channel. + */ + unsigned short* blue; + /*! The number of elements in each array. + */ + unsigned int size; +} GLFWgammaramp; + + +/************************************************************************* + * GLFW API functions + *************************************************************************/ + +/*! @brief Initializes the GLFW library. + * + * This function initializes the GLFW library. Before most GLFW functions can + * be used, GLFW must be initialized, and before a program terminates GLFW + * should be terminated in order to free any resources allocated during or + * after initialization. + * + * If this function fails, it calls @ref glfwTerminate before returning. If it + * succeeds, you should call @ref glfwTerminate before the program exits. + * + * Additional calls to this function after successful initialization but before + * termination will succeed but will do nothing. + * + * @return `GL_TRUE` if successful, or `GL_FALSE` if an error occurred. + * + * @par New in GLFW 3 + * This function no longer registers @ref glfwTerminate with `atexit`. + * + * @note This function may only be called from the main thread. + * + * @note This function may take several seconds to complete on some systems, + * while on other systems it may take only a fraction of a second to complete. + * + * @note **Mac OS X:** This function will change the current directory of the + * application to the `Contents/Resources` subdirectory of the application's + * bundle, if present. + * + * @sa glfwTerminate + * + * @ingroup init + */ +GLFWAPI int glfwInit(void); + +/*! @brief Terminates the GLFW library. + * + * This function destroys all remaining windows, frees any allocated resources + * and sets the library to an uninitialized state. Once this is called, you + * must again call @ref glfwInit successfully before you will be able to use + * most GLFW functions. + * + * If GLFW has been successfully initialized, this function should be called + * before the program exits. If initialization fails, there is no need to call + * this function, as it is called by @ref glfwInit before it returns failure. + * + * @remarks This function may be called before @ref glfwInit. + * + * @note This function may only be called from the main thread. + * + * @warning No window's context may be current on another thread when this + * function is called. + * + * @sa glfwInit + * + * @ingroup init + */ +GLFWAPI void glfwTerminate(void); + +/*! @brief Retrieves the version of the GLFW library. + * + * This function retrieves the major, minor and revision numbers of the GLFW + * library. It is intended for when you are using GLFW as a shared library and + * want to ensure that you are using the minimum required version. + * + * @param[out] major Where to store the major version number, or `NULL`. + * @param[out] minor Where to store the minor version number, or `NULL`. + * @param[out] rev Where to store the revision number, or `NULL`. + * + * @remarks This function may be called before @ref glfwInit. + * + * @remarks This function may be called from any thread. + * + * @sa glfwGetVersionString + * + * @ingroup init + */ +GLFWAPI void glfwGetVersion(int* major, int* minor, int* rev); + +/*! @brief Returns a string describing the compile-time configuration. + * + * This function returns a static string generated at compile-time according to + * which configuration macros were defined. This is intended for use when + * submitting bug reports, to allow developers to see which code paths are + * enabled in a binary. + * + * The format of the string is as follows: + * - The version of GLFW + * - The name of the window system API + * - The name of the context creation API + * - Any additional options or APIs + * + * For example, when compiling GLFW 3.0 with MinGW using the Win32 and WGL + * back ends, the version string may look something like this: + * + * 3.0.0 Win32 WGL MinGW + * + * @return The GLFW version string. + * + * @remarks This function may be called before @ref glfwInit. + * + * @remarks This function may be called from any thread. + * + * @sa glfwGetVersion + * + * @ingroup init + */ +GLFWAPI const char* glfwGetVersionString(void); + +/*! @brief Sets the error callback. + * + * This function sets the error callback, which is called with an error code + * and a human-readable description each time a GLFW error occurs. + * + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @remarks This function may be called before @ref glfwInit. + * + * @note The error callback is called by the thread where the error was + * generated. If you are using GLFW from multiple threads, your error callback + * needs to be written accordingly. + * + * @note Because the description string provided to the callback may have been + * generated specifically for that error, it is not guaranteed to be valid + * after the callback has returned. If you wish to use it after that, you need + * to make your own copy of it before returning. + * + * @ingroup error + */ +GLFWAPI GLFWerrorfun glfwSetErrorCallback(GLFWerrorfun cbfun); + +/*! @brief Returns the currently connected monitors. + * + * This function returns an array of handles for all currently connected + * monitors. + * + * @param[out] count Where to store the size of the returned array. This is + * set to zero if an error occurred. + * @return An array of monitor handles, or `NULL` if an error occurred. + * + * @note The returned array is allocated and freed by GLFW. You should not + * free it yourself. + * + * @note The returned array is valid only until the monitor configuration + * changes. See @ref glfwSetMonitorCallback to receive notifications of + * configuration changes. + * + * @sa glfwGetPrimaryMonitor + * + * @ingroup monitor + */ +GLFWAPI GLFWmonitor** glfwGetMonitors(int* count); + +/*! @brief Returns the primary monitor. + * + * This function returns the primary monitor. This is usually the monitor + * where elements like the Windows task bar or the OS X menu bar is located. + * + * @return The primary monitor, or `NULL` if an error occurred. + * + * @sa glfwGetMonitors + * + * @ingroup monitor + */ +GLFWAPI GLFWmonitor* glfwGetPrimaryMonitor(void); + +/*! @brief Returns the position of the monitor's viewport on the virtual screen. + * + * This function returns the position, in screen coordinates, of the upper-left + * corner of the specified monitor. + * + * @param[in] monitor The monitor to query. + * @param[out] xpos Where to store the monitor x-coordinate, or `NULL`. + * @param[out] ypos Where to store the monitor y-coordinate, or `NULL`. + * + * @ingroup monitor + */ +GLFWAPI void glfwGetMonitorPos(GLFWmonitor* monitor, int* xpos, int* ypos); + +/*! @brief Returns the physical size of the monitor. + * + * This function returns the size, in millimetres, of the display area of the + * specified monitor. + * + * @param[in] monitor The monitor to query. + * @param[out] width Where to store the width, in mm, of the monitor's display + * area, or `NULL`. + * @param[out] height Where to store the height, in mm, of the monitor's + * display area, or `NULL`. + * + * @note Some operating systems do not provide accurate information, either + * because the monitor's EDID data is incorrect, or because the driver does not + * report it accurately. + * + * @ingroup monitor + */ +GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* monitor, int* width, int* height); + +/*! @brief Returns the name of the specified monitor. + * + * This function returns a human-readable name, encoded as UTF-8, of the + * specified monitor. + * + * @param[in] monitor The monitor to query. + * @return The UTF-8 encoded name of the monitor, or `NULL` if an error + * occurred. + * + * @note The returned string is allocated and freed by GLFW. You should not + * free it yourself. + * + * @ingroup monitor + */ +GLFWAPI const char* glfwGetMonitorName(GLFWmonitor* monitor); + +/*! @brief Sets the monitor configuration callback. + * + * This function sets the monitor configuration callback, or removes the + * currently set callback. This is called when a monitor is connected to or + * disconnected from the system. + * + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @bug **X11:** This callback is not yet called on monitor configuration + * changes. + * + * @ingroup monitor + */ +GLFWAPI GLFWmonitorfun glfwSetMonitorCallback(GLFWmonitorfun cbfun); + +/*! @brief Returns the available video modes for the specified monitor. + * + * This function returns an array of all video modes supported by the specified + * monitor. The returned array is sorted in ascending order, first by color + * bit depth (the sum of all channel depths) and then by resolution area (the + * product of width and height). + * + * @param[in] monitor The monitor to query. + * @param[out] count Where to store the number of video modes in the returned + * array. This is set to zero if an error occurred. + * @return An array of video modes, or `NULL` if an error occurred. + * + * @note The returned array is allocated and freed by GLFW. You should not + * free it yourself. + * + * @note The returned array is valid only until this function is called again + * for the specified monitor. + * + * @sa glfwGetVideoMode + * + * @ingroup monitor + */ +GLFWAPI const GLFWvidmode* glfwGetVideoModes(GLFWmonitor* monitor, int* count); + +/*! @brief Returns the current mode of the specified monitor. + * + * This function returns the current video mode of the specified monitor. If + * you are using a full screen window, the return value will therefore depend + * on whether it is focused. + * + * @param[in] monitor The monitor to query. + * @return The current mode of the monitor, or `NULL` if an error occurred. + * + * @note The returned struct is allocated and freed by GLFW. You should not + * free it yourself. + * + * @sa glfwGetVideoModes + * + * @ingroup monitor + */ +GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* monitor); + +/*! @brief Generates a gamma ramp and sets it for the specified monitor. + * + * This function generates a 256-element gamma ramp from the specified exponent + * and then calls @ref glfwSetGammaRamp with it. + * + * @param[in] monitor The monitor whose gamma ramp to set. + * @param[in] gamma The desired exponent. + * + * @ingroup monitor + */ +GLFWAPI void glfwSetGamma(GLFWmonitor* monitor, float gamma); + +/*! @brief Retrieves the current gamma ramp for the specified monitor. + * + * This function retrieves the current gamma ramp of the specified monitor. + * + * @param[in] monitor The monitor to query. + * @return The current gamma ramp, or `NULL` if an error occurred. + * + * @note The value arrays of the returned ramp are allocated and freed by GLFW. + * You should not free them yourself. + * + * @ingroup monitor + */ +GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* monitor); + +/*! @brief Sets the current gamma ramp for the specified monitor. + * + * This function sets the current gamma ramp for the specified monitor. + * + * @param[in] monitor The monitor whose gamma ramp to set. + * @param[in] ramp The gamma ramp to use. + * + * @note Gamma ramp sizes other than 256 are not supported by all hardware. + * + * @ingroup monitor + */ +GLFWAPI void glfwSetGammaRamp(GLFWmonitor* monitor, const GLFWgammaramp* ramp); + +/*! @brief Resets all window hints to their default values. + * + * This function resets all window hints to their + * [default values](@ref window_hints_values). + * + * @note This function may only be called from the main thread. + * + * @sa glfwWindowHint + * + * @ingroup window + */ +GLFWAPI void glfwDefaultWindowHints(void); + +/*! @brief Sets the specified window hint to the desired value. + * + * This function sets hints for the next call to @ref glfwCreateWindow. The + * hints, once set, retain their values until changed by a call to @ref + * glfwWindowHint or @ref glfwDefaultWindowHints, or until the library is + * terminated with @ref glfwTerminate. + * + * @param[in] target The [window hint](@ref window_hints) to set. + * @param[in] hint The new value of the window hint. + * + * @par New in GLFW 3 + * Hints are no longer reset to their default values on window creation. To + * set default hint values, use @ref glfwDefaultWindowHints. + * + * @note This function may only be called from the main thread. + * + * @sa glfwDefaultWindowHints + * + * @ingroup window + */ +GLFWAPI void glfwWindowHint(int target, int hint); + +/*! @brief Creates a window and its associated context. + * + * This function creates a window and its associated context. Most of the + * options controlling how the window and its context should be created are + * specified through @ref glfwWindowHint. + * + * Successful creation does not change which context is current. Before you + * can use the newly created context, you need to make it current using @ref + * glfwMakeContextCurrent. + * + * Note that the created window and context may differ from what you requested, + * as not all parameters and hints are + * [hard constraints](@ref window_hints_hard). This includes the size of the + * window, especially for full screen windows. To retrieve the actual + * attributes of the created window and context, use queries like @ref + * glfwGetWindowAttrib and @ref glfwGetWindowSize. + * + * To create a full screen window, you need to specify the monitor to use. If + * no monitor is specified, windowed mode will be used. Unless you have a way + * for the user to choose a specific monitor, it is recommended that you pick + * the primary monitor. For more information on how to retrieve monitors, see + * @ref monitor_monitors. + * + * To create the window at a specific position, make it initially invisible + * using the `GLFW_VISIBLE` window hint, set its position and then show it. + * + * If a full screen window is active, the screensaver is prohibited from + * starting. + * + * @param[in] width The desired width, in screen coordinates, of the window. + * This must be greater than zero. + * @param[in] height The desired height, in screen coordinates, of the window. + * This must be greater than zero. + * @param[in] title The initial, UTF-8 encoded window title. + * @param[in] monitor The monitor to use for full screen mode, or `NULL` to use + * windowed mode. + * @param[in] share The window whose context to share resources with, or `NULL` + * to not share resources. + * @return The handle of the created window, or `NULL` if an error occurred. + * + * @remarks **Windows:** If the executable has an icon resource named + * `GLFW_ICON,` it will be set as the icon for the window. If no such icon is + * present, the `IDI_WINLOGO` icon will be used instead. + * + * @remarks **Mac OS X:** The GLFW window has no icon, as it is not a document + * window, but the dock icon will be the same as the application bundle's icon. + * Also, the first time a window is opened the menu bar is populated with + * common commands like Hide, Quit and About. The (minimal) about dialog uses + * information from the application's bundle. For more information on bundles, + * see the Bundle Programming Guide provided by Apple. + * + * @note This function may only be called from the main thread. + * + * @sa glfwDestroyWindow + * + * @ingroup window + */ +GLFWAPI GLFWwindow* glfwCreateWindow(int width, int height, const char* title, GLFWmonitor* monitor, GLFWwindow* share); + +/*! @brief Destroys the specified window and its context. + * + * This function destroys the specified window and its context. On calling + * this function, no further callbacks will be called for that window. + * + * @param[in] window The window to destroy. + * + * @note This function may only be called from the main thread. + * + * @note This function may not be called from a callback. + * + * @note If the window's context is current on the main thread, it is + * detached before being destroyed. + * + * @warning The window's context must not be current on any other thread. + * + * @sa glfwCreateWindow + * + * @ingroup window + */ +GLFWAPI void glfwDestroyWindow(GLFWwindow* window); + +/*! @brief Checks the close flag of the specified window. + * + * This function returns the value of the close flag of the specified window. + * + * @param[in] window The window to query. + * @return The value of the close flag. + * + * @remarks This function may be called from secondary threads. + * + * @ingroup window + */ +GLFWAPI int glfwWindowShouldClose(GLFWwindow* window); + +/*! @brief Sets the close flag of the specified window. + * + * This function sets the value of the close flag of the specified window. + * This can be used to override the user's attempt to close the window, or + * to signal that it should be closed. + * + * @param[in] window The window whose flag to change. + * @param[in] value The new value. + * + * @remarks This function may be called from secondary threads. + * + * @ingroup window + */ +GLFWAPI void glfwSetWindowShouldClose(GLFWwindow* window, int value); + +/*! @brief Sets the title of the specified window. + * + * This function sets the window title, encoded as UTF-8, of the specified + * window. + * + * @param[in] window The window whose title to change. + * @param[in] title The UTF-8 encoded window title. + * + * @note This function may only be called from the main thread. + * + * @ingroup window + */ +GLFWAPI void glfwSetWindowTitle(GLFWwindow* window, const char* title); + +/*! @brief Retrieves the position of the client area of the specified window. + * + * This function retrieves the position, in screen coordinates, of the + * upper-left corner of the client area of the specified window. + * + * @param[in] window The window to query. + * @param[out] xpos Where to store the x-coordinate of the upper-left corner of + * the client area, or `NULL`. + * @param[out] ypos Where to store the y-coordinate of the upper-left corner of + * the client area, or `NULL`. + * + * @sa glfwSetWindowPos + * + * @ingroup window + */ +GLFWAPI void glfwGetWindowPos(GLFWwindow* window, int* xpos, int* ypos); + +/*! @brief Sets the position of the client area of the specified window. + * + * This function sets the position, in screen coordinates, of the upper-left + * corner of the client area of the window. + * + * If the specified window is a full screen window, this function does nothing. + * + * If you wish to set an initial window position you should create a hidden + * window (using @ref glfwWindowHint and `GLFW_VISIBLE`), set its position and + * then show it. + * + * @param[in] window The window to query. + * @param[in] xpos The x-coordinate of the upper-left corner of the client area. + * @param[in] ypos The y-coordinate of the upper-left corner of the client area. + * + * @note It is very rarely a good idea to move an already visible window, as it + * will confuse and annoy the user. + * + * @note This function may only be called from the main thread. + * + * @note The window manager may put limits on what positions are allowed. + * + * @bug **X11:** Some window managers ignore the set position of hidden (i.e. + * unmapped) windows, instead placing them where it thinks is appropriate once + * they are shown. + * + * @sa glfwGetWindowPos + * + * @ingroup window + */ +GLFWAPI void glfwSetWindowPos(GLFWwindow* window, int xpos, int ypos); + +/*! @brief Retrieves the size of the client area of the specified window. + * + * This function retrieves the size, in screen coordinates, of the client area + * of the specified window. + * + * @param[in] window The window whose size to retrieve. + * @param[out] width Where to store the width, in screen coordinates, of the + * client area, or `NULL`. + * @param[out] height Where to store the height, in screen coordinates, of the + * client area, or `NULL`. + * + * @sa glfwSetWindowSize + * + * @ingroup window + */ +GLFWAPI void glfwGetWindowSize(GLFWwindow* window, int* width, int* height); + +/*! @brief Sets the size of the client area of the specified window. + * + * This function sets the size, in screen coordinates, of the client area of + * the specified window. + * + * For full screen windows, this function selects and switches to the resolution + * closest to the specified size, without affecting the window's context. As + * the context is unaffected, the bit depths of the framebuffer remain + * unchanged. + * + * @param[in] window The window to resize. + * @param[in] width The desired width of the specified window. + * @param[in] height The desired height of the specified window. + * + * @note This function may only be called from the main thread. + * + * @note The window manager may put limits on what window sizes are allowed. + * + * @sa glfwGetWindowSize + * + * @ingroup window + */ +GLFWAPI void glfwSetWindowSize(GLFWwindow* window, int width, int height); + +/*! @brief Retrieves the size of the framebuffer of the specified window. + * + * This function retrieves the size, in pixels, of the framebuffer of the + * specified window. + * + * @param[in] window The window whose framebuffer to query. + * @param[out] width Where to store the width, in pixels, of the framebuffer, + * or `NULL`. + * @param[out] height Where to store the height, in pixels, of the framebuffer, + * or `NULL`. + * + * @sa glfwSetFramebufferSizeCallback + * + * @ingroup window + */ +GLFWAPI void glfwGetFramebufferSize(GLFWwindow* window, int* width, int* height); + +/*! @brief Iconifies the specified window. + * + * This function iconifies/minimizes the specified window, if it was previously + * restored. If it is a full screen window, the original monitor resolution is + * restored until the window is restored. If the window is already iconified, + * this function does nothing. + * + * @param[in] window The window to iconify. + * + * @note This function may only be called from the main thread. + * + * @sa glfwRestoreWindow + * + * @ingroup window + */ +GLFWAPI void glfwIconifyWindow(GLFWwindow* window); + +/*! @brief Restores the specified window. + * + * This function restores the specified window, if it was previously + * iconified/minimized. If it is a full screen window, the resolution chosen + * for the window is restored on the selected monitor. If the window is + * already restored, this function does nothing. + * + * @param[in] window The window to restore. + * + * @note This function may only be called from the main thread. + * + * @sa glfwIconifyWindow + * + * @ingroup window + */ +GLFWAPI void glfwRestoreWindow(GLFWwindow* window); + +/*! @brief Makes the specified window visible. + * + * This function makes the specified window visible, if it was previously + * hidden. If the window is already visible or is in full screen mode, this + * function does nothing. + * + * @param[in] window The window to make visible. + * + * @note This function may only be called from the main thread. + * + * @sa glfwHideWindow + * + * @ingroup window + */ +GLFWAPI void glfwShowWindow(GLFWwindow* window); + +/*! @brief Hides the specified window. + * + * This function hides the specified window, if it was previously visible. If + * the window is already hidden or is in full screen mode, this function does + * nothing. + * + * @param[in] window The window to hide. + * + * @note This function may only be called from the main thread. + * + * @sa glfwShowWindow + * + * @ingroup window + */ +GLFWAPI void glfwHideWindow(GLFWwindow* window); + +/*! @brief Returns the monitor that the window uses for full screen mode. + * + * This function returns the handle of the monitor that the specified window is + * in full screen on. + * + * @param[in] window The window to query. + * @return The monitor, or `NULL` if the window is in windowed mode. + * + * @ingroup window + */ +GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* window); + +/*! @brief Returns an attribute of the specified window. + * + * This function returns an attribute of the specified window. There are many + * attributes, some related to the window and others to its context. + * + * @param[in] window The window to query. + * @param[in] attrib The [window attribute](@ref window_attribs) whose value to + * return. + * @return The value of the attribute, or zero if an error occurred. + * + * @ingroup window + */ +GLFWAPI int glfwGetWindowAttrib(GLFWwindow* window, int attrib); + +/*! @brief Sets the user pointer of the specified window. + * + * This function sets the user-defined pointer of the specified window. The + * current value is retained until the window is destroyed. The initial value + * is `NULL`. + * + * @param[in] window The window whose pointer to set. + * @param[in] pointer The new value. + * + * @sa glfwGetWindowUserPointer + * + * @ingroup window + */ +GLFWAPI void glfwSetWindowUserPointer(GLFWwindow* window, void* pointer); + +/*! @brief Returns the user pointer of the specified window. + * + * This function returns the current value of the user-defined pointer of the + * specified window. The initial value is `NULL`. + * + * @param[in] window The window whose pointer to return. + * + * @sa glfwSetWindowUserPointer + * + * @ingroup window + */ +GLFWAPI void* glfwGetWindowUserPointer(GLFWwindow* window); + +/*! @brief Sets the position callback for the specified window. + * + * This function sets the position callback of the specified window, which is + * called when the window is moved. The callback is provided with the screen + * position of the upper-left corner of the client area of the window. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup window + */ +GLFWAPI GLFWwindowposfun glfwSetWindowPosCallback(GLFWwindow* window, GLFWwindowposfun cbfun); + +/*! @brief Sets the size callback for the specified window. + * + * This function sets the size callback of the specified window, which is + * called when the window is resized. The callback is provided with the size, + * in screen coordinates, of the client area of the window. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup window + */ +GLFWAPI GLFWwindowsizefun glfwSetWindowSizeCallback(GLFWwindow* window, GLFWwindowsizefun cbfun); + +/*! @brief Sets the close callback for the specified window. + * + * This function sets the close callback of the specified window, which is + * called when the user attempts to close the window, for example by clicking + * the close widget in the title bar. + * + * The close flag is set before this callback is called, but you can modify it + * at any time with @ref glfwSetWindowShouldClose. + * + * The close callback is not triggered by @ref glfwDestroyWindow. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @remarks **Mac OS X:** Selecting Quit from the application menu will + * trigger the close callback for all windows. + * + * @ingroup window + */ +GLFWAPI GLFWwindowclosefun glfwSetWindowCloseCallback(GLFWwindow* window, GLFWwindowclosefun cbfun); + +/*! @brief Sets the refresh callback for the specified window. + * + * This function sets the refresh callback of the specified window, which is + * called when the client area of the window needs to be redrawn, for example + * if the window has been exposed after having been covered by another window. + * + * On compositing window systems such as Aero, Compiz or Aqua, where the window + * contents are saved off-screen, this callback may be called only very + * infrequently or never at all. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @note On compositing window systems such as Aero, Compiz or Aqua, where the + * window contents are saved off-screen, this callback may be called only very + * infrequently or never at all. + * + * @ingroup window + */ +GLFWAPI GLFWwindowrefreshfun glfwSetWindowRefreshCallback(GLFWwindow* window, GLFWwindowrefreshfun cbfun); + +/*! @brief Sets the focus callback for the specified window. + * + * This function sets the focus callback of the specified window, which is + * called when the window gains or loses focus. + * + * After the focus callback is called for a window that lost focus, synthetic + * key and mouse button release events will be generated for all such that had + * been pressed. For more information, see @ref glfwSetKeyCallback and @ref + * glfwSetMouseButtonCallback. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup window + */ +GLFWAPI GLFWwindowfocusfun glfwSetWindowFocusCallback(GLFWwindow* window, GLFWwindowfocusfun cbfun); + +/*! @brief Sets the iconify callback for the specified window. + * + * This function sets the iconification callback of the specified window, which + * is called when the window is iconified or restored. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup window + */ +GLFWAPI GLFWwindowiconifyfun glfwSetWindowIconifyCallback(GLFWwindow* window, GLFWwindowiconifyfun cbfun); + +/*! @brief Sets the framebuffer resize callback for the specified window. + * + * This function sets the framebuffer resize callback of the specified window, + * which is called when the framebuffer of the specified window is resized. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup window + */ +GLFWAPI GLFWframebuffersizefun glfwSetFramebufferSizeCallback(GLFWwindow* window, GLFWframebuffersizefun cbfun); + +/*! @brief Processes all pending events. + * + * This function processes only those events that have already been received + * and then returns immediately. Processing events will cause the window and + * input callbacks associated with those events to be called. + * + * This function is not required for joystick input to work. + * + * @par New in GLFW 3 + * This function is no longer called by @ref glfwSwapBuffers. You need to call + * it or @ref glfwWaitEvents yourself. + * + * @note This function may only be called from the main thread. + * + * @note This function may not be called from a callback. + * + * @note On some platforms, certain callbacks may be called outside of a call + * to one of the event processing functions. + * + * @sa glfwWaitEvents + * + * @ingroup window + */ +GLFWAPI void glfwPollEvents(void); + +/*! @brief Waits until events are pending and processes them. + * + * This function puts the calling thread to sleep until at least one event has + * been received. Once one or more events have been received, it behaves as if + * @ref glfwPollEvents was called, i.e. the events are processed and the + * function then returns immediately. Processing events will cause the window + * and input callbacks associated with those events to be called. + * + * Since not all events are associated with callbacks, this function may return + * without a callback having been called even if you are monitoring all + * callbacks. + * + * This function is not required for joystick input to work. + * + * @note This function may only be called from the main thread. + * + * @note This function may not be called from a callback. + * + * @note On some platforms, certain callbacks may be called outside of a call + * to one of the event processing functions. + * + * @sa glfwPollEvents + * + * @ingroup window + */ +GLFWAPI void glfwWaitEvents(void); + +/*! @brief Returns the value of an input option for the specified window. + * + * @param[in] window The window to query. + * @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS` or + * `GLFW_STICKY_MOUSE_BUTTONS`. + * + * @sa glfwSetInputMode + * + * @ingroup input + */ +GLFWAPI int glfwGetInputMode(GLFWwindow* window, int mode); + +/*! @brief Sets an input option for the specified window. + * @param[in] window The window whose input mode to set. + * @param[in] mode One of `GLFW_CURSOR`, `GLFW_STICKY_KEYS` or + * `GLFW_STICKY_MOUSE_BUTTONS`. + * @param[in] value The new value of the specified input mode. + * + * If `mode` is `GLFW_CURSOR`, the value must be one of the supported input + * modes: + * - `GLFW_CURSOR_NORMAL` makes the cursor visible and behaving normally. + * - `GLFW_CURSOR_HIDDEN` makes the cursor invisible when it is over the client + * area of the window. + * - `GLFW_CURSOR_DISABLED` disables the cursor and removes any limitations on + * cursor movement. + * + * If `mode` is `GLFW_STICKY_KEYS`, the value must be either `GL_TRUE` to + * enable sticky keys, or `GL_FALSE` to disable it. If sticky keys are + * enabled, a key press will ensure that @ref glfwGetKey returns @ref + * GLFW_PRESS the next time it is called even if the key had been released + * before the call. This is useful when you are only interested in whether + * keys have been pressed but not when or in which order. + * + * If `mode` is `GLFW_STICKY_MOUSE_BUTTONS`, the value must be either `GL_TRUE` + * to enable sticky mouse buttons, or `GL_FALSE` to disable it. If sticky + * mouse buttons are enabled, a mouse button press will ensure that @ref + * glfwGetMouseButton returns @ref GLFW_PRESS the next time it is called even + * if the mouse button had been released before the call. This is useful when + * you are only interested in whether mouse buttons have been pressed but not + * when or in which order. + * + * @sa glfwGetInputMode + * + * @ingroup input + */ +GLFWAPI void glfwSetInputMode(GLFWwindow* window, int mode, int value); + +/*! @brief Returns the last reported state of a keyboard key for the specified + * window. + * + * This function returns the last state reported for the specified key to the + * specified window. The returned state is one of `GLFW_PRESS` or + * `GLFW_RELEASE`. The higher-level state `GLFW_REPEAT` is only reported to + * the key callback. + * + * If the `GLFW_STICKY_KEYS` input mode is enabled, this function returns + * `GLFW_PRESS` the first time you call this function after a key has been + * pressed, even if the key has already been released. + * + * The key functions deal with physical keys, with [key tokens](@ref keys) + * named after their use on the standard US keyboard layout. If you want to + * input text, use the Unicode character callback instead. + * + * @param[in] window The desired window. + * @param[in] key The desired [keyboard key](@ref keys). + * @return One of `GLFW_PRESS` or `GLFW_RELEASE`. + * + * @note `GLFW_KEY_UNKNOWN` is not a valid key for this function. + * + * @ingroup input + */ +GLFWAPI int glfwGetKey(GLFWwindow* window, int key); + +/*! @brief Returns the last reported state of a mouse button for the specified + * window. + * + * This function returns the last state reported for the specified mouse button + * to the specified window. + * + * If the `GLFW_STICKY_MOUSE_BUTTONS` input mode is enabled, this function + * returns `GLFW_PRESS` the first time you call this function after a mouse + * button has been pressed, even if the mouse button has already been released. + * + * @param[in] window The desired window. + * @param[in] button The desired [mouse button](@ref buttons). + * @return One of `GLFW_PRESS` or `GLFW_RELEASE`. + * + * @ingroup input + */ +GLFWAPI int glfwGetMouseButton(GLFWwindow* window, int button); + +/*! @brief Retrieves the last reported cursor position, relative to the client + * area of the window. + * + * This function returns the last reported position of the cursor to the + * specified window. + * + * If the cursor is disabled (with `GLFW_CURSOR_DISABLED`) then the cursor + * position is unbounded and limited only by the minimum and maximum values of + * a `double`. + * + * The coordinate can be converted to their integer equivalents with the + * `floor` function. Casting directly to an integer type works for positive + * coordinates, but fails for negative ones. + * + * @param[in] window The desired window. + * @param[out] xpos Where to store the cursor x-coordinate, relative to the + * left edge of the client area, or `NULL`. + * @param[out] ypos Where to store the cursor y-coordinate, relative to the to + * top edge of the client area, or `NULL`. + * + * @sa glfwSetCursorPos + * + * @ingroup input + */ +GLFWAPI void glfwGetCursorPos(GLFWwindow* window, double* xpos, double* ypos); + +/*! @brief Sets the position of the cursor, relative to the client area of the window. + * + * This function sets the position of the cursor. The specified window must be + * focused. If the window does not have focus when this function is called, it + * fails silently. + * + * If the cursor is disabled (with `GLFW_CURSOR_DISABLED`) then the cursor + * position is unbounded and limited only by the minimum and maximum values of + * a `double`. + * + * @param[in] window The desired window. + * @param[in] xpos The desired x-coordinate, relative to the left edge of the + * client area, or `NULL`. + * @param[in] ypos The desired y-coordinate, relative to the top edge of the + * client area, or `NULL`. + * + * @sa glfwGetCursorPos + * + * @ingroup input + */ +GLFWAPI void glfwSetCursorPos(GLFWwindow* window, double xpos, double ypos); + +/*! @brief Sets the key callback. + * + * This function sets the key callback of the specific window, which is called + * when a key is pressed, repeated or released. + * + * The key functions deal with physical keys, with layout independent + * [key tokens](@ref keys) named after their values in the standard US keyboard + * layout. If you want to input text, use the + * [character callback](@ref glfwSetCharCallback) instead. + * + * When a window loses focus, it will generate synthetic key release events + * for all pressed keys. You can tell these events from user-generated events + * by the fact that the synthetic ones are generated after the window has lost + * focus, i.e. `GLFW_FOCUSED` will be false and the focus callback will have + * already been called. + * + * The scancode of a key is specific to that platform or sometimes even to that + * machine. Scancodes are intended to allow users to bind keys that don't have + * a GLFW key token. Such keys have `key` set to `GLFW_KEY_UNKNOWN`, their + * state is not saved and so it cannot be retrieved with @ref glfwGetKey. + * + * Sometimes GLFW needs to generate synthetic key events, in which case the + * scancode may be zero. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new key callback, or `NULL` to remove the currently + * set callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup input + */ +GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* window, GLFWkeyfun cbfun); + +/*! @brief Sets the Unicode character callback. + * + * This function sets the character callback of the specific window, which is + * called when a Unicode character is input. + * + * The character callback is intended for text input. If you want to know + * whether a specific key was pressed or released, use the + * [key callback](@ref glfwSetKeyCallback) instead. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup input + */ +GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* window, GLFWcharfun cbfun); + +/*! @brief Sets the mouse button callback. + * + * This function sets the mouse button callback of the specified window, which + * is called when a mouse button is pressed or released. + * + * When a window loses focus, it will generate synthetic mouse button release + * events for all pressed mouse buttons. You can tell these events from + * user-generated events by the fact that the synthetic ones are generated + * after the window has lost focus, i.e. `GLFW_FOCUSED` will be false and the + * focus callback will have already been called. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup input + */ +GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* window, GLFWmousebuttonfun cbfun); + +/*! @brief Sets the cursor position callback. + * + * This function sets the cursor position callback of the specified window, + * which is called when the cursor is moved. The callback is provided with the + * position relative to the upper-left corner of the client area of the window. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup input + */ +GLFWAPI GLFWcursorposfun glfwSetCursorPosCallback(GLFWwindow* window, GLFWcursorposfun cbfun); + +/*! @brief Sets the cursor enter/exit callback. + * + * This function sets the cursor boundary crossing callback of the specified + * window, which is called when the cursor enters or leaves the client area of + * the window. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new callback, or `NULL` to remove the currently set + * callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup input + */ +GLFWAPI GLFWcursorenterfun glfwSetCursorEnterCallback(GLFWwindow* window, GLFWcursorenterfun cbfun); + +/*! @brief Sets the scroll callback. + * + * This function sets the scroll callback of the specified window, which is + * called when a scrolling device is used, such as a mouse wheel or scrolling + * area of a touchpad. + * + * The scroll callback receives all scrolling input, like that from a mouse + * wheel or a touchpad scrolling area. + * + * @param[in] window The window whose callback to set. + * @param[in] cbfun The new scroll callback, or `NULL` to remove the currently + * set callback. + * @return The previously set callback, or `NULL` if no callback was set or an + * error occurred. + * + * @ingroup input + */ +GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* window, GLFWscrollfun cbfun); + +/*! @brief Returns whether the specified joystick is present. + * + * This function returns whether the specified joystick is present. + * + * @param[in] joy The joystick to query. + * @return `GL_TRUE` if the joystick is present, or `GL_FALSE` otherwise. + * + * @ingroup input + */ +GLFWAPI int glfwJoystickPresent(int joy); + +/*! @brief Returns the values of all axes of the specified joystick. + * + * This function returns the values of all axes of the specified joystick. + * + * @param[in] joy The joystick to query. + * @param[out] count Where to store the size of the returned array. This is + * set to zero if an error occurred. + * @return An array of axis values, or `NULL` if the joystick is not present. + * + * @note The returned array is allocated and freed by GLFW. You should not + * free it yourself. + * + * @note The returned array is valid only until the next call to @ref + * glfwGetJoystickAxes for that joystick. + * + * @ingroup input + */ +GLFWAPI const float* glfwGetJoystickAxes(int joy, int* count); + +/*! @brief Returns the state of all buttons of the specified joystick. + * + * This function returns the state of all buttons of the specified joystick. + * + * @param[in] joy The joystick to query. + * @param[out] count Where to store the size of the returned array. This is + * set to zero if an error occurred. + * @return An array of button states, or `NULL` if the joystick is not present. + * + * @note The returned array is allocated and freed by GLFW. You should not + * free it yourself. + * + * @note The returned array is valid only until the next call to @ref + * glfwGetJoystickButtons for that joystick. + * + * @ingroup input + */ +GLFWAPI const unsigned char* glfwGetJoystickButtons(int joy, int* count); + +/*! @brief Returns the name of the specified joystick. + * + * This function returns the name, encoded as UTF-8, of the specified joystick. + * + * @param[in] joy The joystick to query. + * @return The UTF-8 encoded name of the joystick, or `NULL` if the joystick + * is not present. + * + * @note The returned string is allocated and freed by GLFW. You should not + * free it yourself. + * + * @note The returned string is valid only until the next call to @ref + * glfwGetJoystickName for that joystick. + * + * @ingroup input + */ +GLFWAPI const char* glfwGetJoystickName(int joy); + +/*! @brief Sets the clipboard to the specified string. + * + * This function sets the system clipboard to the specified, UTF-8 encoded + * string. The string is copied before returning, so you don't have to retain + * it afterwards. + * + * @param[in] window The window that will own the clipboard contents. + * @param[in] string A UTF-8 encoded string. + * + * @note This function may only be called from the main thread. + * + * @sa glfwGetClipboardString + * + * @ingroup clipboard + */ +GLFWAPI void glfwSetClipboardString(GLFWwindow* window, const char* string); + +/*! @brief Retrieves the contents of the clipboard as a string. + * + * This function returns the contents of the system clipboard, if it contains + * or is convertible to a UTF-8 encoded string. + * + * @param[in] window The window that will request the clipboard contents. + * @return The contents of the clipboard as a UTF-8 encoded string, or `NULL` + * if an error occurred. + * + * @note This function may only be called from the main thread. + * + * @note The returned string is allocated and freed by GLFW. You should not + * free it yourself. + * + * @note The returned string is valid only until the next call to @ref + * glfwGetClipboardString or @ref glfwSetClipboardString. + * + * @sa glfwSetClipboardString + * + * @ingroup clipboard + */ +GLFWAPI const char* glfwGetClipboardString(GLFWwindow* window); + +/*! @brief Returns the value of the GLFW timer. + * + * This function returns the value of the GLFW timer. Unless the timer has + * been set using @ref glfwSetTime, the timer measures time elapsed since GLFW + * was initialized. + * + * @return The current value, in seconds, or zero if an error occurred. + * + * @remarks This function may be called from secondary threads. + * + * @note The resolution of the timer is system dependent, but is usually on the + * order of a few micro- or nanoseconds. It uses the highest-resolution + * monotonic time source on each supported platform. + * + * @ingroup time + */ +GLFWAPI double glfwGetTime(void); + +/*! @brief Sets the GLFW timer. + * + * This function sets the value of the GLFW timer. It then continues to count + * up from that value. + * + * @param[in] time The new value, in seconds. + * + * @note The resolution of the timer is system dependent, but is usually on the + * order of a few micro- or nanoseconds. It uses the highest-resolution + * monotonic time source on each supported platform. + * + * @ingroup time + */ +GLFWAPI void glfwSetTime(double time); + +/*! @brief Makes the context of the specified window current for the calling + * thread. + * + * This function makes the context of the specified window current on the + * calling thread. A context can only be made current on a single thread at + * a time and each thread can have only a single current context at a time. + * + * @param[in] window The window whose context to make current, or `NULL` to + * detach the current context. + * + * @remarks This function may be called from secondary threads. + * + * @sa glfwGetCurrentContext + * + * @ingroup context + */ +GLFWAPI void glfwMakeContextCurrent(GLFWwindow* window); + +/*! @brief Returns the window whose context is current on the calling thread. + * + * This function returns the window whose context is current on the calling + * thread. + * + * @return The window whose context is current, or `NULL` if no window's + * context is current. + * + * @remarks This function may be called from secondary threads. + * + * @sa glfwMakeContextCurrent + * + * @ingroup context + */ +GLFWAPI GLFWwindow* glfwGetCurrentContext(void); + +/*! @brief Swaps the front and back buffers of the specified window. + * + * This function swaps the front and back buffers of the specified window. If + * the swap interval is greater than zero, the GPU driver waits the specified + * number of screen updates before swapping the buffers. + * + * @param[in] window The window whose buffers to swap. + * + * @remarks This function may be called from secondary threads. + * + * @par New in GLFW 3 + * This function no longer calls @ref glfwPollEvents. You need to call it or + * @ref glfwWaitEvents yourself. + * + * @sa glfwSwapInterval + * + * @ingroup context + */ +GLFWAPI void glfwSwapBuffers(GLFWwindow* window); + +/*! @brief Sets the swap interval for the current context. + * + * This function sets the swap interval for the current context, i.e. the + * number of screen updates to wait before swapping the buffers of a window and + * returning from @ref glfwSwapBuffers. This is sometimes called 'vertical + * synchronization', 'vertical retrace synchronization' or 'vsync'. + * + * Contexts that support either of the `WGL_EXT_swap_control_tear` and + * `GLX_EXT_swap_control_tear` extensions also accept negative swap intervals, + * which allow the driver to swap even if a frame arrives a little bit late. + * You can check for the presence of these extensions using @ref + * glfwExtensionSupported. For more information about swap tearing, see the + * extension specifications. + * + * @param[in] interval The minimum number of screen updates to wait for + * until the buffers are swapped by @ref glfwSwapBuffers. + * + * @remarks This function may be called from secondary threads. + * + * @note Some GPU drivers do not honor the requested swap interval, either + * because of user settings that override the request or due to bugs in the + * driver. + * + * @sa glfwSwapBuffers + * + * @ingroup context + */ +GLFWAPI void glfwSwapInterval(int interval); + +/*! @brief Returns whether the specified extension is available. + * + * This function returns whether the specified + * [OpenGL or context creation API extension](@ref context_glext) is supported + * by the current context. For example, on Windows both the OpenGL and WGL + * extension strings are checked. + * + * @param[in] extension The ASCII encoded name of the extension. + * @return `GL_TRUE` if the extension is available, or `GL_FALSE` otherwise. + * + * @remarks This function may be called from secondary threads. + * + * @note As this functions searches one or more extension strings on each call, + * it is recommended that you cache its results if it's going to be used + * frequently. The extension strings will not change during the lifetime of + * a context, so there is no danger in doing this. + * + * @ingroup context + */ +GLFWAPI int glfwExtensionSupported(const char* extension); + +/*! @brief Returns the address of the specified function for the current + * context. + * + * This function returns the address of the specified + * [client API or extension function](@ref context_glext), if it is supported + * by the current context. + * + * @param[in] procname The ASCII encoded name of the function. + * @return The address of the function, or `NULL` if the function is + * unavailable. + * + * @remarks This function may be called from secondary threads. + * + * @note The addresses of these functions are not guaranteed to be the same for + * all contexts, especially if they use different client APIs or even different + * context creation hints. + * + * @ingroup context + */ +GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname); + + +/************************************************************************* + * Global definition cleanup + *************************************************************************/ + +/* ------------------- BEGIN SYSTEM/COMPILER SPECIFIC -------------------- */ + +#ifdef GLFW_WINGDIAPI_DEFINED + #undef WINGDIAPI + #undef GLFW_WINGDIAPI_DEFINED +#endif + +#ifdef GLFW_CALLBACK_DEFINED + #undef CALLBACK + #undef GLFW_CALLBACK_DEFINED +#endif + +/* -------------------- END SYSTEM/COMPILER SPECIFIC --------------------- */ + + +#ifdef __cplusplus +} +#endif + +#endif /* _glfw3_h_ */ + |