public static extern int SendMessageW([In] IntPtr hWnd, int Msg, uint wParam, ref CAPINFOCHUNK infoChunk);
public bool capFileSetInfoChunk(ref CAPINFOCHUNK infoChunk) { return 1 == SendMessageW(fWindowHandle, Vfw.WM_CAP_FILE_SET_INFOCHUNK, 0, ref infoChunk); }