Microsoft DirectX 9.0


This topic applies to Windows XP Service Pack 1 only.

The _SetAllocator method specifies an allocator-presenter for the VMR. Applications can use this method to provide their own custom allocator-presenter objects.


HRESULT _SetAllocator(
    IVMRSurfaceAllocator *pAllocPresent,
    long ID = -1



[in]  Pointer to the IVMRSurfaceAllocator interface of the allocator-presenter object.


[in]  Optionally, specifies an identifier (ID) for the allocator-presenter object. The default value of -1 indicates that the MSVidVideoRenderer object will create an ID when it builds the filter graph. In that case, the MSVidVideoRenderer object uses the lower 32 bits of the allocator-presenter's IUnknown interface pointer as the ID. Note that the ID is for application use; the VMR does not use it.

Return Values

Returns an HRESULT value. Possible values include the following.

Value Description
S_OK Success.

See Also