EngCreateDeviceSurface function (winddi.h)

Article
02/22/2024

The EngCreateDeviceSurface function creates and returns a handle for a device surface that the driver will manage.

Syntax

ENGAPI HSURF EngCreateDeviceSurface(
  [in] DHSURF dhsurf,
  [in] SIZEL  sizl,
       ULONG  iFormatCompat
);

Parameters

[in] dhsurf

Device handle to the surface to be managed by the device. This handle is passed to the driver when a SURFOBJ structure is passed for input or output.

[in] sizl

Specifies a SIZEL structure that contains the width and height of the surface to be created. The cx and cy members of this structure contain respectively, the surface's width and height, in pixels. A SIZEL structure is identical to a SIZE structure.

iFormatCompat

Specifies the compatible engine format of the device surface being created. This is used by GDI if a temporary buffer is needed to simulate a complicated drawing call.

Return value

The return value is a handle that identifies the surface if the function is successful. Otherwise, it is zero, and an error code is logged.

Remarks

The storage space for the surface can optionally be provided by the driver. The surface should be associated by using EngAssociateSurface. The surface should be deleted when it is no longer needed by using EngDeleteSurface.

Requirements

Requirement	Value
Minimum supported client	Available in Windows 2000 and later versions of the Windows operating systems.
Target Platform	Universal
Header	winddi.h (include Winddi.h)
Library	Win32k.lib
DLL	Win32k.sys