Callback

BOOL WINAPI lpCallback(GUID FAR * lpGUID,

LPSTR lpDriverDescription, LPSTR lpDriverName,

LPVOID lpContext);

Application-defined callback function for the DirectDrawEnumerate function.

·Returns DDENUMRET_OK to continue the enumeration, or DDENUMRET_CANCEL to stop it.

lpGUID

Address of the unique identifier of the DirectDraw object.

lpDriverDescription

Address of a string containing the driver description.

lpDriverName

Address of a string containing the driver name.

lpContext

Address of an application-defined structure that will be passed to the callback function each time the function is called.