|Microsoft DirectX 9.0|
The RestoreDisplayMode method resets the mode of the display device hardware for the primary surface to what it was before the SetDisplayMode method was called to change it. Exclusive level access is required to use this method.
This method takes no parameters.
|DD_OK||The method succeeded.|
|DDERR_INVALIDOBJECT||DirectDraw received a pointer that was an invalid DirectDraw object.|
|DDERR_INVALIDPARAMS||One or more of the input parameters is invalid.|
|DDERR_LOCKEDSURFACES||Operation could not be carried out because one or more surfaces are locked.|
|DDERR_EXCLUSIVEMODENOTOWNED||The application does not have exclusive mode.|