D3DDDICB_ESCAPE structure (d3dumddi.h)
The D3DDDICB_ESCAPE structure describes information that a user-mode display driver shares with a display miniport driver.
Syntax
typedef struct _D3DDDICB_ESCAPE {
[in] HANDLE hDevice;
[in] D3DDDI_ESCAPEFLAGS Flags;
[in/out] VOID *pPrivateDriverData;
[in] UINT PrivateDriverDataSize;
[in] HANDLE hContext;
} D3DDDICB_ESCAPE;
Members
[in] hDevice
A handle to the display device (graphics context) that was originally passed to the user-mode display driver's CreateDevice or CreateDevice(D3D10) function or NULL, if the shared information is not associated with a display device.
[in] Flags
A D3DDDI_ESCAPEFLAGS structure that indicates, in bit-field flags, how to share information. The user-mode display driver should specify the HardwareAccess bit-field flag to indicate that the display miniport driver must access graphics hardware in such a way that the operating system must perform the second level of synchronization into the display miniport driver for the DxgkDdiEscape call.
[in/out] pPrivateDriverData
A pointer to a buffer that is allocated by the user-mode display driver that contains information that the user-mode display driver sends to the display miniport driver or that the user-mode display driver receives from the display miniport driver.
[in] PrivateDriverDataSize
The size, in bytes, of the buffer that pPrivateDriverData points to.
[in] hContext
A handle to the context that the pfnCreateContextCb function returned or NULL, if the shared information is not associated with a context. If the user-mode display driver sets hContext to a non-NULL value, the driver must have also set hDevice to a non-NULL value, and hDevice must correspond to the device that owns the context.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows Vista and later versions of the Windows operating systems. |
| Header | d3dumddi.h (include D3dumddi.h) |