Video Format

You can retrieve the structure that specifies the video format or the size of that structure by sending the WM_CAP_GET_VIDEOFORMATBHO.KX message (or the capGetVideoFormat6HHPCP and capGetVideoFormatSize1ISFPV_ macros) to a capture window. You can set the format of captured video data by sending the WM_CAP_SET_VIDEOFORMAT19WJSQM message (or the capSetVideoFormatS9Q3H7 macro) to a capture window.