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WM_CAP_GRAB_FRAME

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The WM_CAP_GRAB_FRAME message retrieves and displays a single frame from the capture driver. After capture, overlay and preview are disabled. You can send this message explicitly or by using the capGrabFrame macro.

WM_CAP_GRAB_FRAME 
wParam = (WPARAM)0; 
lParam = (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.

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.

See Also

Video Capture, Video Capture Messages, capGrabFrame, WM_CAP_SET_CALLBACK_ERROR, WM_CAP_SET_CALLBACK_FRAME