WM_CAP_DLG_VIDEOSOURCE  7I0V0M 

The WM_CAP_DLG_VIDEOSOURCE message displays a dialog box in which the user can control the video source. The Video Source dialog box might contain controls that select input sources; alter the hue, contrast, brightness of the image; and modify the video quality before digitizing the images into the frame buffer. You can send this message explicitly or by using the capDlgVideoSource21IVHWA macro.

WM_CAP_DLG_VIDEOSOURCE

wParam = (WPARAM) 0;

lParam = 0L;

Return Values

Returns TRUE if successful or FALSE otherwise.

Remarks

The Video Source dialog box is unique for each capture driver. Some capture drivers might not support a Video Source dialog box. Applications can determine if the capture driver supports this message by checking the fHasDlgVideoSource member of the CAPDRIVERCAPS structure.

See Also