// d3dkmthk.h

typedef struct _D3DKMT_VIDSCH_ESCAPE {
  D3DKMT_VIDSCHESCAPETYPE            Type;
  union {
    BOOL                              PreemptionControl;
    BOOL                              EnableContextDelay;
    struct {
      ULONG TdrControl;
      union {
        ULONG NodeOrdinal;
      };
    } TdrControl2;
    BOOL                              SuspendScheduler;
    ULONG                             TdrControl;
    ULONG                             SuspendTime;
    struct {
      UINT Count;
      UINT Time;
    } TdrLimit;
    D3DKMT_ESCAPE_PFN_CONTROL_COMMAND PfnControl;
  };
  D3DKMT_ESCAPE_VIRTUAL_REFRESH_RATE VirtualRefreshRateControl;
} D3DKMT_VIDSCH_ESCAPE;
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Edit description on GitHub

Windows Driver Kit DDI reference (ns-d3dkmthk-_d3dkmt_vidsch_escape)

_D3DKMT_VIDSCH_ESCAPE structure

Description

Do not use the D3DKMT_VIDSCH_ESCAPE structure; it is for testing purposes only.

The D3DKMT_VIDSCH_ESCAPE structure describes how to control the graphics processing unit (GPU) scheduler (which is part of Dxgkrnl.sys) in a call to the D3DKMTEscape function.

Members

`Type`

The escape type, of type D3DKMT_VIDSCHESCAPETYPE, which is reserved and should not be used in your driver.

`PreemptionControl`

Enable or disable preemption.

`EnableContextDelay`

Enable or disable context delay.

`TdrControl2`

`TdrControl2.TdrControl`

Control TDR.

`TdrControl2.NodeOrdinal`

Valid if TdrControl is set to a value of D3DKMT_TDRDBGCTRLTYPE_ENGINETDR.

`SuspendScheduler`

Suspend or resume scheduler (obsolete).

`TdrControl`

Control TDR.

`SuspendTime`

Time period to suspend.

D3DKMT_VIDSCH_ESCAPE - NtDoc