capStatusCallback
The capStatusCallback function is the status callback function used with video capture. The name capStatusCallback is a placeholder for the application-supplied function name.
To set the callback, send the WM_CAP_SET_CALLBACK_STATUS message to the capture window or call the capSetCallbackOnStatus macro.
LRESULT CALLBACK capStatusCallback(
HWND hWnd,
int nID,
LPCTSTR lpsz
);
Parameters
hWnd
Handle to the capture window associated with the callback function.
nID
Message identification number.
lpsz
Pointer to a textual description of the returned status.
Remarks
During capture operations, the first message sent to the callback function is always IDS_CAP_BEGIN and the last is always IDS_CAP_END. A message identifier of zero indicates a new operation is starting and the callback function should clear the current status.
Requirements
** Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
** Windows 95/98/Me:** Included in Windows 95 and later.
** Header:** Declared in Vfw.h.
Library: Use Vfw32.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows NT/2000/XP.
See Also