// d3dumddi.h

PFND3DDDI_FLUSH1 Pfnd3dddiFlush1;

HRESULT Pfnd3dddiFlush1(
  HANDLE hDevice,
  UINT FlushFlags
)
{...}
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Windows Driver Kit DDI reference (nc-d3dumddi-pfnd3dddi_flush1)

PFND3DDDI_FLUSH1 callback function

Description

Called by the Microsoft Direct3D runtime to submit outstanding hardware commands that are in the hardware command buffer to the display miniport driver. Must be implemented by Windows Display Driver Model (WDDM) 1.3 and later user-mode display drivers.

Parameters

`hDevice`

A handle to the display device (graphics context).

`FlushFlags`

A value from the D3DDDI_FLUSH_FLAGS enumeration that indicates whether the driver should continue to submit command buffers if there have been no new commands.

Return value

If this routine succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

PFND3DDDI_FLUSH1 - NtDoc