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SetProcessDPIAware doesn't seem to work under windows 10

I am trying to get real screen resolution (in pixels) in a Windows C ++ application. When the dpi setting changes, I get a virtual (adjusted) resolution instead of real. I tried using SetProcessDPIAware, SetProcessDpiAwareness (with all three enumerated values ​​as arguments) and the true setting in the manifest. In all three cases, the code works fine (i.e., shows the real resolution) on my Windows 7 PC, but not in Win 10 (here it ignores the DPI Aware setting and returns the configured resolution).

#define WIN32_LEAN_AND_MEAN  // Exclude rarely-used stuff from Windows headers

// Windows Header Files:
#include <windows.h>
#include <winuser.h>
#include <VersionHelpers.h>
#include <ShellScalingAPI.h>
#include <stdlib.h>
#include <stdio.h>

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
char *cBuffer2 ;

  cBuffer2 = (char *)malloc(3000) ;
  if (IsWindowsVistaOrGreater())
  {
//    SetProcessDpiAwareness(PROCESS_SYSTEM_DPI_AWARE);
      int result = SetProcessDPIAware();

      sprintf(cBuffer2,"SetProcessDPIAware() result: [%i]\n",result) ;

      int height = GetSystemMetrics(SM_CYSCREEN);
      int width = GetSystemMetrics(SM_CXSCREEN);
      sprintf(cBuffer2,"%s#1:\nHeight: [%i]\nwidth: [%i]\n",cBuffer2,height,width) ;


      HWND hwnd = (HWND)atoi(lpCmdLine) ;
      HMONITOR monitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
      MONITORINFO info;
      info.cbSize = sizeof(MONITORINFO);
      GetMonitorInfo(monitor, &info);
      int monitor_width = info.rcMonitor.right - info.rcMonitor.left;
      int monitor_height = info.rcMonitor.bottom - info.rcMonitor.top;
      sprintf(cBuffer2,"%s#2:\nHeight: [%i]\nwidth: [%i]\n",cBuffer2,monitor_height,monitor_width) ;

  }

  MessageBox(0,cBuffer2,"SHOWRES.EXE",MB_OK) ;
  return 0 ;
}

I am trying to use a manifest of the following type:

<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>

Any ideas?

+4
1

- , : Windows 10, Windows, " " . 10, (100%) . 150%, .

(Jonathan and Barmak) , -, 10, . :
- changed DPI settings to 150%
- logged out
- logged in again
- ran the program

( , vs ).

, , SetProcessDPIAware ( : SetProcessDpiAwareness() manifest with true) , DPI .

, !

+6

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