MagGetImageScalingCallback

MagGetImageScalingCallback function

Note  The MagGetImageScalingCallback function is deprecated in Windows 7 and later, and should not be used in new applications. There is no alternate functionality.
 

Retrieves the registered callback function that implements a custom transform for image scaling.

Syntax


MagImageScalingCallback WINAPI MagGetImageScalingCallback(
  _In_ HWND hwnd
);

Parameters

hwnd [in]

Type: HWND

The magnification window.

Return value

Type: MagImageScalingCallback

Returns the registered MagImageScalingCallback callback function, or NULL if no callback is registered.

Remarks

This function returns NULL if Windows Display Driver Model (WDDM) is not supported.

This function works only when Desktop Window Manager (DWM) is off.

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Magnification.h

Library

Magnification.lib

DLL

Magnification.dll

See also

MagImageScalingCallback
MagSetImageScalingCallback

 

 

Community Additions

ADD
Show:
© 2016 Microsoft