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SetProcessDPIAware function

[

SetProcessDPIAware is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions. Instead, use SetProcessDPIAwareness.

]

Sets the current process as dots per inch (dpi) aware.

Note  SetProcessDPIAware is subject to a possible race condition if a DLL caches dpi settings during initialization. For this reason, it is recommended that dpi-aware be set through the application (.exe) manifest rather than by calling SetProcessDPIAware.

Syntax


BOOL WINAPI SetProcessDPIAware(void);

Parameters

This function has no parameters.

Return value

Type:

Type: BOOL

If the function succeeds, the return value is nonzero. Otherwise, the return value is zero.

Remarks

DLLs should accept the dpi setting of the host process rather than call SetProcessDPIAware themselves. To be set properly, dpiAware should be specified as part of the application (.exe) manifest. (dpiAware defined in an embedded DLL manifest has no affect.) The following markup shows how to set dpiAware as part of an application (.exe) manifest.


<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" >
 ...
  <asmv3:application>
    <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
      <dpiAware>true</dpiAware>
    </asmv3:windowsSettings>
  </asmv3:application>
 ...
</assembly>

For more information about application manifests, see Manifests (Side-by-Side Assemblies).

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Winuser.h (include Windows.h)

Library

User32.lib

DLL

User32.dll

 

 

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