PFND3D10DDI_FLUSH callback function

The Flush(D3D10) function submits outstanding hardware commands that are in the hardware command buffer to the display miniport driver.


PFND3D10DDI_FLUSH Pfnd3d10ddiFlush;

void Pfnd3d10ddiFlush(



hDevice [in]

A handle to the display device (graphics context).

Return Value


The driver can use the pfnSetErrorCb callback function to set an error code. For more information about setting error codes, see the following Remarks section.


After the Flush(D3D10) function completes, all previously issued commands no longer depend on actions that occur within the application's user-mode context. In addition, applications can safely suspend themselves without blocking rendering until the kernel restarts them (such as, when an asynchronous query is used).

The driver should not encounter any error, except for D3DDDIERR_DEVICEREMOVED. Therefore, if the driver passes any error, except for D3DDDIERR_DEVICEREMOVED, in a call to the pfnSetErrorCb function, the Direct3D runtime will determine that the error is critical. Even if the device was removed, the driver is not required to return D3DDDIERR_DEVICEREMOVED; however, if device removal interfered with the operation of Flush(D3D10) (which typically should not happen), the driver can return D3DDDIERR_DEVICEREMOVED.


Minimum supported client Available in Windows Vista and later versions of the Windows operating systems.
Target Platform Desktop
Header d3d10umddi.h (include D3d10umddi.h)

See Also