192 lines
4.4 KiB
C
192 lines
4.4 KiB
C
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//+----------------------------------------------------------------------------
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//
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// File:
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// clipbrd.h
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//
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// Contents:
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//
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// Classes:
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// CClipDataObject
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//
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// Functions:
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//
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// History:
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// 17/05/94 - AlexGo - added OleOpenClipboard
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// 16/03/94 - AlexGo - modified for the rewritten clipboard code.
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// 12/08/93 - ChrisWe - continue with file cleanup
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// 12/06/93 - ChrisWe - began file cleanup
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//
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//-----------------------------------------------------------------------------
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#ifndef _CLIPBRD_H_
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#define _CLIPBRD_H_
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// WindowMessage for Delayed DropTarget Marshaling.
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const UINT WM_OLE_CLIPBRD_MARSHALDROPTARGET = (WM_USER + 0);
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//+----------------------------------------------------------------------------
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//
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// Function:
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// ClipboardInitialize, internal
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//
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// Synopsis:
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// Initialize the use of the clipboard.
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//
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// Effects:
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// Registers a window class CLIPBRDWNDCLASS.
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//
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// Arguments:
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// none
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//
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// Returns:
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// TRUE for success; FALSE other wise
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//
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// Notes:
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//
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// History:
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// 12/06/93 - ChrisWe - file inspection and cleanup
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//
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//-----------------------------------------------------------------------------
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BOOL ClipboardInitialize(void);
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//+----------------------------------------------------------------------------
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//
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// Function:
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// ClipboardUninitialize, internal
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//
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// Synopsis:
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// Terminates use of the clipboard by OLE, freeing associated
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// resources.
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//
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// Effects:
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// If this is the last reference, unregisters the clipboard
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// window class.
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//
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// Arguments:
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// none
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//
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// Notes:
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//
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// History:
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// 12/06/93 - ChrisWe - file inspection and cleanup
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//
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//-----------------------------------------------------------------------------
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void ClipboardUninitialize(void);
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// flags used for GetPrivateClipboardWindow
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typedef enum tagCLIPWINDOWFLAGS
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{
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CLIP_QUERY = 0,
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CLIP_CREATEIFNOTTHERE = 1
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} CLIPWINDOWFLAGS;
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//+-------------------------------------------------------------------------
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//
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// Function: GetPrivateClipboardWindow
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//
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// Synopsis: Retrieves (creates if necessary) the private clipboard
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// window associated with the current apartment (thread)
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//
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// Effects:
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//
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// Arguments: fCreate -- if TRUE and no window currently exists,
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// create one
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//
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// Requires:
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//
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// Returns: HWND
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//
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// Signals:
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//
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// Modifies:
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//
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// Algorithm: see description in the code (clipapi.cpp)
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//
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// History: dd-mmm-yy Author Comment
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// 16-Mar-94 alexgo author
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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HWND GetPrivateClipboardWindow( CLIPWINDOWFLAGS fFlags );
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//+-------------------------------------------------------------------------
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//
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// Function: OleOpenClipboard (internal)
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//
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// Synopsis: Opens the clipboard
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//
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// Effects:
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//
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// Arguments: [hClipWnd] -- open the clipboard with this window
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// may be NULL.
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// [phClipWnd] -- where to put the clipboard owner
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// may be NULL
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//
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// Requires:
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//
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// Returns: NOERROR: the clipboard was opened successfully
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// CLIPBRD_E_CANT_OPEN: could not open the clipboard
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//
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// Signals:
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//
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// Modifies:
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//
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// Algorithm:
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//
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// History: dd-mmm-yy Author Comment
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// 17-May-94 alexgo author
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//
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// Notes:
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//
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//--------------------------------------------------------------------------
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HRESULT OleOpenClipboard( HWND hClipWnd, HWND *phClipWnd );
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//+-------------------------------------------------------------------------
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//
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// Function: ClipSetCaptureForDrag
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//
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// Synopsis: Sets mouse capture mode for a drag operation
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//
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// Arguments: [pdrgop] - pointer to object that handles drag operation
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//
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// Returns: S_OK -- it worked
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// E_FAIL -- unexpected failure occurred.
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//
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// Algorithm: see description in the code (clipapi.cpp)
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//
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// History: dd-mmm-yy Author Comment
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// 21-Apr-94 ricksa created
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//
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//--------------------------------------------------------------------------
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class CDragOperation; // Forward declaration for circular dependencies
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HRESULT ClipSetCaptureForDrag(CDragOperation *pdrgop);
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//+-------------------------------------------------------------------------
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//
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// Function: ClipReleaseCaptureForDrag
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//
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// Synopsis: Clean up drag mouse capture
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//
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// Algorithm: see description in the code (clipapi.cpp)
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//
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// History: dd-mmm-yy Author Comment
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// 21-Apr-94 ricksa created
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//
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//--------------------------------------------------------------------------
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void ClipReleaseCaptureForDrag(void);
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#endif // _CLIPBRD_H_
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