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WM_CAP_SET_SCALE
The WM_CAP_SET_SCALE message enables or disables scaling of the preview video
images. If scaling is enabled, the captured video frame is stretched to the
dimensions of the capture window. You can send this message explicitly or by using
the capPreviewScale macro.
WM_CAP_SET_SCALE
wParam = (WPARAM) (BOOL)f;
lParam = 0L;
Parameters
f
Preview scaling flag. Specify TRUE for this parameter to stretch preview
frames to the size of the capture window or FALSE to display them at their natural
size.
Return Values
Returns TRUE if successful or FALSE otherwise.
Remarks
Scaling preview images controls the immediate presentation of captured frames
within the capture window. It has no effect on the size of the frames saved to
file.
Scaling has no effect when using overlay to display video in the frame buffer.
See Also
capPreviewScale
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