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#define INCL_WININPUT
 
HWND WinQueryCapture(hwndDesktop, fLock)
HWND hwndDesktop;    /* desktop handle    */
BOOL fLock;          /* lock/unlock flag  */
 
The WinQueryCapture function returns the window handle of the window that
has the mouse capture.
 
Parameter    Description
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hwndDesktop  Identifies the desktop window. This parameter can be
             HWND_DESKTOP or the desktop-window handle.
 
fLock        This parameter is ignored by MS OS/2 versions 1.2 and later.
 
Return Value
 
The return value is the window handle with the mouse capture if the function
is successful; it is NULL if no window has the capture or an error occurs.
 
See Also
 
WinLockWindow, WinSetCapture
 
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