The following example uses the capCaptureGetSetup and capCaptureSetSetup macros to change the capture rate from the default value (15 frames per second) to 10 frames per second.
CAPTUREPARMS CaptureParms;
float FramesPerSec = 10.0;
capCaptureGetSetup(hWndC, &CaptureParms, sizeof(CAPTUREPARMS));
CaptureParms.dwRequestMicroSecPerFrame = (DWORD) (1.0e6 /
FramesPerSec);
capCaptureSetSetup(hWndC, &CaptureParms, sizeof (CAPTUREPARMS));