The IDirectDrawColorControl::GetColorControls method returns the current color control settings associated with the specified overlay or primary surface. The dwFlags member of the DDCOLORCONTROL structure indicate which of the color control options are supported.
HRESULT GetColorControls(
LPDDCOLORCONTROL lpColorControl
);
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 |
DDERR_UNSUPPORTED |