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D3DDDI_DRIVERESCAPE_CPUEVENTUSAGE structure (d3dukmdt.h)

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The D3DDDI_DRIVERESCAPE_CPUEVENTUSAGE structure defines the kernel-mode driver (KMD) CPU event usage escape when notifying KMD about the intended usage of a KMD CPU event object.

Syntax

typedef struct _D3DDDI_DRIVERESCAPE_CPUEVENTUSAGE {
  D3DDDI_DRIVERESCAPETYPE EscapeType;
  D3DKMT_HANDLE           hSyncObject;
  D3DKMT_ALIGN64 UINT64   hKmdCpuEvent;
  UINT                    Usage[8];
} D3DDDI_DRIVERESCAPE_CPUEVENTUSAGE;

Members

EscapeType

[in] A D3DDDI_DRIVERESCAPETYPE. Must be set to D3DDDI_DRIVERESCAPETYPE_CPUEVENTUSAGE.

hSyncObject

[in] CPU event synchronization object handle, returned from D3DKMTCreateSynchronizationObject2.

hKmdCpuEvent

[in] Handle that KMD returned from DXGKDDI_CREATECPUEVENT

Usage[8]

Driver-defined usage for the synchronization object.

Remarks

See Signaling a CPU event from KMD for more information and sample code.

Requirements

Requirement Value
Minimum supported client Windows 11 (WDDM 3.0)
Header d3dukmdt.h

See also

DXGKARG_ESCAPE

DXGKDDI_ESCAPE