D3DDDICB_SIGNALFLAGS structure (d3dukmdt.h)

The D3DDDICB_SIGNALFLAGS structure describes signaling behavior in a call to the pfnSignalSynchronizationObjectCb or pfnSignalSynchronizationObject2Cb functions.

Syntax

typedef struct _D3DDDICB_SIGNALFLAGS {
  union {
    struct {
      UINT SignalAtSubmission : 1;
      UINT EnqueueCpuEvent : 1;
      UINT AllowFenceRewind : 1;
#if ...
      UINT Reserved : 28;
      UINT DXGK_SIGNAL_FLAG_INTERNAL0 : 1;
#elif
      UINT Reserved : 30;
#else
      UINT Reserved : 31;
#endif
    };
    UINT Value;
  };
} D3DDDICB_SIGNALFLAGS;

Members

SignalAtSubmission

A UINT value that specifies whether a context should signal synchronization objects when the previously queued packet is submitted rather than completed (which is the default behavior).

Setting this member is equivalent to setting the first bit of the 32-bit Value member (0x00000001).

EnqueueCpuEvent

A UINT value that modifies the behavior of the pfnSignalSynchronizationObject2Cb function.

When this member is set:

Setting this member is equivalent to setting the second bit of the 32-bit Value member (0x00000002).

Supported starting with Windows 8.

AllowFenceRewind

A UINT value that indicates whether an intentional fence rewind is allowed. When set TRUE, the fence can be rewound to a queued fence that is behind the current one.

Supported starting with Windows 10 (WDDM 2.0).

Reserved

This member is reserved and should be set to zero.

DXGK_SIGNAL_FLAG_INTERNAL0

This member is reserved and should be set to zero.

Value

A member in the union that is contained in D3DDDICB_SIGNALFLAGS that can hold one 32-bit value that identifies signaling behavior.

Requirements

Requirement Value
Minimum supported client Windows Vista
Header d3dukmdt.h (include D3dumddi.h, D3dkmddi.h)

See also

D3DDDICB_SIGNALSYNCHRONIZATIONOBJECT

D3DDDICB_SIGNALSYNCHRONIZATIONOBJECT2

pfnSignalSynchronizationObject2Cb

pfnSignalSynchronizationObjectCb