The IDirectDrawSurface3::GetCaps method retrieves the capabilities of the surface. These capabilities are not necessarily related to the capabilities of the display device.
HRESULT GetCaps(
LPDDSCAPS lpDDSCaps
);
If the method succeeds, the return value is DD_OK.
If the method fails, the return value may be one of the following error values:
DDERR_INVALIDOBJECT |
DDERR_INVALIDPARAMS |