The display driver model architecture for the Windows Display Driver Model (WDDM), available starting with Windows Vista, is composed of user-mode and kernel-mode parts. The following figure shows the architecture required to support WDDM.
A graphics hardware vendor must supply the user-mode display driver and the display miniport driver. The user-mode display driver is a dynamic-link library (DLL) that is loaded by the Microsoft Direct3D runtime. The display miniport driver communicates with the Microsoft DirectX graphics kernel subsystem. For more information about the user-mode display driver and display miniport driver, see the Windows Display Driver Model (WDDM) Reference.
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