macro displays a dialog box in which the user can select a compressor to use
during the capture process. The list of available compressors can vary with the
video format selected in the capture driver's Video Format dialog box. You can
use this macro or explicitly send the WM_CAP_DLG_VIDEOCOMPRESSION
Handle of a capture window.
Returns TRUE if successful or FALSE otherwise.
Use this message with capture drivers that provide frames only in the BI_RGB
format. This message is most useful in the step capture operation to combine
capture and compression in a single operation. Compressing frames with a software
compressor as part of a real-time capture operation is most likely too
time-consuming to perform.
Compression does not affect the frames copied to the clipboard.
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