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/*++
Copyright (c) 1995 Microsoft Corporation
Module Name:
nwshmisc.cxx
Abstract:
This module implements misc methods used in the shell extension classes.
Author:
Yi-Hsin Sung (yihsins) 25-Oct-1995
--*/
extern "C"
{
#include <windows.h>
#include <shellapi.h>
#include <shlobj.h>
#define DONT_WANT_SHELLDEBUG
#include <shsemip.h>
}
#include "nwshcmn.h"
#define MAX_RESOURCE_STRING_LENGTH 256
VOID HideControl( HWND hwndDlg, WORD wID )
{
HWND hwndTmp = ::GetDlgItem( hwndDlg, wID );
::EnableWindow( hwndTmp, FALSE );
::ShowWindow( hwndTmp, FALSE );
}
VOID UnHideControl( HWND hwndDlg, WORD wID )
{
HWND hwndTmp = ::GetDlgItem( hwndDlg, wID );
::EnableWindow( hwndTmp, TRUE );
::ShowWindow( hwndTmp, TRUE );
}
VOID EnableDlgItem( HWND hwndDlg, WORD wID, BOOL fEnable)
{
HWND hwndTmp = ::GetDlgItem( hwndDlg, wID );
::EnableWindow( hwndTmp, fEnable);
}
/*
* LoadErrorPrintf
* -------------
*
* Uses normal printf style format string
*/
DWORD
LoadMsgErrorPrintf(
LPWSTR *ppszMessage,
UINT uiMsg,
DWORD errNum
)
{
DWORD nLen = 0;
DWORD err = NO_ERROR;
LPWSTR pszError = NULL;
WCHAR szError[20];
*ppszMessage = NULL;
//
// Try to get the error string associated with the given number
// from the system. If we cannot find the string, then
// just show the number.
//
nLen = ::FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS
| FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL, // ignored
errNum, // Message resource id
0, // Language id
(LPWSTR) &pszError,
// Return pointer to formatted text
256, // Min.length
NULL );
if ( nLen == 0 || pszError == NULL )
{
wsprintf( szError, L"%d", errNum );
}
err = LoadMsgPrintf( ppszMessage, uiMsg, pszError? pszError : szError );
if ( pszError )
::LocalFree( pszError );
return err;
}
/*
* LoadMsgPrintf
* -------------
*
* Uses normal printf style format string
*/
DWORD
LoadMsgPrintf(
LPWSTR *ppszMessage,
UINT uiMsg,
...
)
{
WCHAR szMessage[512];
DWORD err = NO_ERROR;
DWORD nLen = 0;
va_list start;
va_start( start, uiMsg );
*ppszMessage = NULL;
if ( ::LoadString( ::hmodNW, uiMsg, szMessage,
sizeof(szMessage)/sizeof(szMessage[0])))
{
nLen = ::FormatMessage( FORMAT_MESSAGE_FROM_STRING
| FORMAT_MESSAGE_ALLOCATE_BUFFER,
szMessage,
0, // Message resource id, ignored
0, // Language id
(LPWSTR) ppszMessage,
// Return pointer to formatted text
256, // Min.length
&start );
if ( nLen == 0 || *ppszMessage == NULL )
err = GetLastError();
}
va_end(start);
return err;
}
/*
* MsgBoxErrorPrintf
* ------------
*
* Message box routine
*
*/
DWORD
MsgBoxErrorPrintf(
HWND hwnd,
UINT uiMsg,
UINT uiTitle,
UINT uiFlags,
DWORD errNum,
LPWSTR pszInsertStr
)
{
DWORD nLen = 0;
DWORD err = NO_ERROR;
LPWSTR pszError = NULL;
WCHAR szError[20];
nLen = ::FormatMessage( FORMAT_MESSAGE_FROM_SYSTEM
| FORMAT_MESSAGE_IGNORE_INSERTS
| FORMAT_MESSAGE_ALLOCATE_BUFFER,
NULL, // ignored
errNum, // Message resource id
0, // Language id
(LPWSTR) &pszError,
// Return pointer to formatted text
256, // Min.length
NULL );
if ( nLen == 0 || pszError == NULL )
wsprintf( szError, L"%d", errNum );
if ( pszInsertStr )
{
err = MsgBoxPrintf( hwnd, uiMsg, uiTitle, uiFlags,
pszError? pszError : szError, pszInsertStr );
}
else
{
err = MsgBoxPrintf( hwnd, uiMsg, uiTitle, uiFlags,
pszError? pszError : szError );
}
if ( pszError )
::LocalFree( pszError );
return err;
}
/*
* MsgBoxPrintf
* ------------
*
* Message box routine
*
*/
DWORD
MsgBoxPrintf(
HWND hwnd,
UINT uiMsg,
UINT uiTitle,
UINT uiFlags,
...
)
{
WCHAR szTitle[MAX_RESOURCE_STRING_LENGTH];
WCHAR szMessage[MAX_RESOURCE_STRING_LENGTH];
LPWSTR lpFormattedMessage = NULL;
DWORD err = NO_ERROR;
va_list start;
va_start(start,uiFlags);
if ( ::LoadString( ::hmodNW, uiMsg, szMessage, sizeof(szMessage)/sizeof(szMessage[0]))
&& ::LoadString( ::hmodNW, uiTitle, szTitle, sizeof(szTitle)/sizeof(szTitle[0]))
)
{
DWORD nLen = ::FormatMessage( FORMAT_MESSAGE_FROM_STRING
| FORMAT_MESSAGE_ALLOCATE_BUFFER,
szMessage,
0, // Resource Id, ignored
NULL, // Language Id, ignored
(LPWSTR) &lpFormattedMessage,
// Return pointer to formatted text
256, // Min.length
&start );
if ( nLen == 0 || lpFormattedMessage == NULL )
{
err = GetLastError();
goto CleanExit;
}
err = ::MessageBox( hwnd,
lpFormattedMessage,
szTitle,
uiFlags );
::LocalFree( lpFormattedMessage );
}
CleanExit:
va_end(start);
return err;
}
|
