The EnumModesCallback function is an application-defined callback function for the IDirectDraw3::EnumDisplayModes method, and its counterparts in earlier interfaces.
This callback function is superseded by the EnumModesCallback2 function that is used with the IDirectDraw4::EnumDisplayModes method.
HRESULT WINAPI EnumModesCallback(
  LPDDSURFACEDESC lpDDSurfaceDesc,  
  LPVOID lpContext                  
);
 
The callback function returns DDENUMRET_OK to continue the enumeration.
The callback function returns DDENUMRET_CANCEL to stop it.
You can use the LPDDENUMMODESCALLBACK data type to declare a variable that can contain a pointer to this callback function.
  Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in ddraw.h.
  Import Library: User-defined.