WM_CAP_SINGLE_FRAME_OPEN

The WM_CAP_SINGLE_FRAME_OPEN message opens the capture file for single-frame capturing. Any previous information in the capture file is overwritten. You can send this message explicitly or by using the capCaptureSingleFrameOpen macro.

WM_CAP_SINGLE_FRAME_OPEN 
wParam = (WPARAM) 0; 
lParam = 0L; 
 

Return Values

Returns TRUE if successful or FALSE otherwise.

Remarks

For information about installing callback functions, see the WM_CAP_SET_CALLBACK_ERROR and WM_CAP_SET_CALLBACK_FRAME messages.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.

See Also

Video Capture Overview, Video Capture Messages, capCaptureSingleFrameOpen, WM_CAP_SET_CALLBACK_ERROR, WM_CAP_SET_CALLBACK_FRAME