The DirectDrawCreateClipper function creates an instance of a DirectDrawClipper object not associated with a DirectDraw object.
HRESULT WINAPI DirectDrawCreateClipper(
DWORD dwFlags,
LPDIRECTDRAWCLIPPER FAR *lplpDDClipper,
IUnknown FAR *pUnkOuter
);
Parameters
dwFlags
This parameter is currently not used and must be set to 0.
lplpDDClipper
Address of a pointer that will be filled with the address of the new DirectDrawClipper object.
pUnkOuter
Allows for future compatibility with COM aggregation features. Presently, however, DirectDrawCreateClipper returns an error if this parameter is anything but NULL.
Return Values
If the function succeeds, the return value is DD_OK.
If the function fails, the return value may be one of the following error values:
| DDERR_INVALIDPARAMS |
| DDERR_OUTOFMEMORY |
Remarks
This function can be called before any DirectDraw objects are created. Because these DirectDrawClipper objects are not owned by any DirectDraw object, they are not automatically released when an application's objects are released. If the application does not explicitly release the DirectDrawClipper objects, DirectDraw will release them when the application terminates.
To create a DirectDrawClipper object owned by a specific DirectDraw object, use the IDirectDraw2::CreateClipper method.
QuickInfo
Windows NT: Use version 4.0 or later.
Windows: Use Windows 95 or later. Available as a redistributable for Windows 95.
Windows CE: Unsupported.
Header: Declared in ddraw.h.
Import Library: Use ddraw.lib.
See Also