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+Simple Drag and Drop Sample
+---------------------------
+
+This sample demonstrates an implementation of OLE 2 drag and drop. It allows
+drag and drop operations between two instances of the sample application.
+For information on compiling and building the sample, see the makefile in
+this directory.
+
+
+Simple Drag and Drop Objects Overview :
+---------------------------------------
+Simple Drag and Drop consists of three main objects. The top level is
+CSimpleApp, under which is CSimpleDoc, and the innermost level is CSimpleSite.
+CSimpleApp is used to hold all the main window information. (eg. handle to
+the main window, handles to the main, edit, and help menus and the application
+instance) CSimpleApp always exists as long as the simple drag and drop
+application is alive.
+
+The next level object is CSimpleDoc object. It is instantiated when a new
+document is created. It enables and disables the menu items in the main menu.
+Since simple drag and drop is a single document interface application, the
+user is only allowed to insert one object into the document. It is
+necessary to disable certain items from the main menu to avoid incorrect
+selection. It also registers the window for drag and drop and manipulates
+the clipboard operations, such as copy to the clipboard, flush the clipboard.
+It demonstrates the implementates of two OLE interfaces in its nested classes,
+IDropSource and IDropTarget. These two interfaces are implemented as
+CDropSource and CDropTarget respectively.
+
+The CSimpleDoc object instantiates two different objects based on the user
+selection from the main menu. The CSimpleSite object is instantiated if the
+user chooses to insert a new object into the document. CSimpleSite
+demonstrates the implementation of IAdviseSink and IOleClientSite through its
+nested classes. These two interfaces are implemented as CAdviseSink and
+COleClientSite accordingly. CSimpleSite manipulates the storage handling and
+acts as a client site to communicate to a remote server. Such server can be
+an executable server or a dll server. The CDataXferObj object is instantiated
+when the user chooses to copy the existing object from the current document.
+it is required to copy an object to the clipboard. CDataXferObj demonstrates
+the IDataObject interface implementation and performs data transfer
+operations.
+
+
+
+
+
+
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