// d3dkmddi.h

typedef struct _DXGKARG_SWITCHTOHWCONTEXTLIST {
  HANDLE hHwContextFirst;
  HANDLE hHwContextSecond;
  UINT   NodeOrdinal;
  UINT   EngineOrdinal;
} DXGKARG_SWITCHTOHWCONTEXTLIST;
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Windows Driver Kit DDI reference (ns-d3dkmddi-_dxgkarg_switchtohwcontextlist)

_DXGKARG_SWITCHTOHWCONTEXTLIST structure

Description

Arguments used in the DXGKDDI_SWITCHTOHWCONTEXTLIST callback function.

Members

`hHwContextFirst`

Hardware context that should be executed by the GPU first. If the GPU is currently not executing this context, it needs to preempt the current work and switch to hHwContextFirst. May be NULL if the GPU is instructed to become idle.

`hHwContextSecond`

Hardware context that should be executed by the GPU once all queues in hHwContextFirst are idle or blocked on waits. May be NULL.

`NodeOrdinal`

Node ordinal of engine that is instructed to switch to the new context(s).

`EngineOrdinal`

Engine ordinal of engine that is instructed to switch to the new context(s).

DXGKARG_SWITCHTOHWCONTEXTLIST - NtDoc