// d3dukmdt.h

typedef struct _D3DDDI_TESTCOMMANDBUFFER {
  union {
    D3DDDI_TESTCOMMANDBUFFER_COPY Copy;
    D3DDDI_TESTCOMMANDBUFFER_FILL Fill;
    char                          Reserved[64];
  };
  D3DDDI_TESTCOMMANDBUFFEROP Operation;
  UINT                       Reserved1;
} D3DDDI_TESTCOMMANDBUFFER;
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Windows Driver Kit DDI reference (ns-d3dukmdt-d3dddi_testcommandbuffer)

Description

The D3DDDI_TESTCOMMANDBUFFER structure describes a test command buffer for kernel-mode testing.

Members

`Copy`

When Operation is D3DDDI_TESTCOMMANDBUFFEROP_COPY, this field is a D3DDDI_TESTCOMMANDBUFFER_COPY structure for a copy operation.

`Fill`

When Operation is D3DDDI_TESTCOMMANDBUFFEROP_FILL, this field is a D3DDDI_TESTCOMMANDBUFFER_FILL structure for a fill operation.

`Reserved[64]`

Reserved for future use.

`Operation`

A D3DDDI_TESTCOMMANDBUFFEROP enumeration that specifies the type of operation for the test command buffer, and which operation-specific structure to use.

`Reserved1`

Reserved.

Remarks

For more information, see Kernel-mode testing.

D3DDDI_TESTCOMMANDBUFFER - NtDoc