Obtaining the Capabilities of a Capture Driver

The WM_CAP_DRIVER_GET_CAPS2ZKKB4D message returns the capabilities of the capture driver and underlying hardware in the CAPDRIVERCAPS7NWCSH structure. Each time an application connects a new capture driver to the capture window, it should update the CAPDRIVERCAPS structure. The following example uses the capDriverGetCaps51YP2S macro to obtain the capture driver capabilities.

CAPDRIVERCAPS CapDrvCaps;

SendMessage (hWndC, WM_CAP_DRIVER_GET_CAPS,

    sizeof (CAPDRIVERCAPS), (LONG) (LPVOID) &CapDrvCaps);

// Or, use the macro to retrieve the driver capabilities.

// capDriverGetCaps(hWndC, &CapDrvCaps, sizeof (CAPDRIVERCAPS));