|Microsoft DirectX 9.0|
Preloads a managed resource.
No return value.
Calling this method indicates that the application will need this managed resource shortly. This method has no effect on nonmanaged resources.
IDirect3DResource9::PreLoad detects "thrashing" conditions where more resources are being used in each frame than can fit in video memory simultaneously. Under such circumstances IDirect3DResource9::PreLoad silently does nothing.