D3DKMTEscape function (d3dkmthk.h)
The D3DKMTEscape function exchanges information with the display miniport driver.
Syntax
NTSTATUS D3DKMTEscape(
[in] const D3DKMT_ESCAPE *unnamedParam1
);
Parameters
[in] unnamedParam1
A pointer to a structure that describes the exchanged information.
Return value
D3DKMTEscape returns one of the following values:
| Return code | Description |
|---|---|
| STATUS_SUCCESS | Information was successfully shared. |
| STATUS_DEVICE_REMOVED | The graphics adapter was stopped or the display device was reset. |
| STATUS_INVALID_PARAMETER | Parameters were validated and determined to be incorrect. |
| STATUS_NO_MEMORY | D3DKMTEscape could not complete because of insufficient memory. |
| STATUS_PRIVILEGED_INSTRUCTION | D3DKMTEscape detected non-privileged instructions (that is, instructions that access memory beyond the privilege of the current CPU process). |
| STATUS_ILLEGAL_INSTRUCTION | D3DKMTEscape detected instructions that cannot be supported by graphics hardware. |
This function might also return other NTSTATUS values.
Remarks
The OpenGL ICD calls D3DKMTEscape to exchange data directly with the display miniport driver. For testing purposes, the OpenGL ICD can also call D3DKMTEscape to control the video memory manager and graphics processing unit (GPU) scheduler (which are part of Dxgkrnl.sys) and the behavior of the operating system's Timeout Detection and Recovery (TDR) process.
Hardware vendors can use D3DKMTEscape in their OpenGL ICDs as an extension mechanism. However, vendors should report necessary extensions to Microsoft so the extensions can be natively supported by the operating system.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista |
| Target Platform | Universal |
| Header | d3dkmthk.h (include D3dkmthk.h) |
| Library | Gdi32.lib |
| DLL | Gdi32.dll |