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carlos vargas wrote:

Code: Select all | Expand

#include "fivewin.ch"

procedure main()
    ?fw_fscale(), fw_fscale()*100
return

#pragma BEGINDUMP

#include "hbapi.h"
#include <windows.h>

/*-----------------------------------------------------------------------------*/

HB_FUNC( FW_FSCALE )
{
   HWND hWnd = GetActiveWindow();
   HDC hdc = GetDC( hWnd );
   float fScale = GetDeviceCaps( hdc, LOGPIXELSX ) / 96.0f;
   ReleaseDC( hWnd, hdc );

   hb_retnd( (double) fScale );
}

/*-----------------------------------------------------------------------------*/

#pragma ENDDUMP

 

Antonio Linares wrote:Richard,

https://stackoverflow.com/questions/35233182/how-can-i-change-windows-10-display-scaling-programmatically-using-c-sharp/57397039#57397039

https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-displayconfigsetdeviceinfo

http://www.xtremedotnettalk.com/threads/changing-screen-resolution-c.73184/

carlos vargas wrote:

Code: Select all | Expand

#include "fivewin.ch"

procedure main()
    ?fw_fscale(), fw_fscale()*100
return

#pragma BEGINDUMP

#include "hbapi.h"
#include <windows.h>

/*-----------------------------------------------------------------------------*/

HB_FUNC( FW_FSCALE )
{
   HWND hWnd = GetActiveWindow();
   HDC hdc = GetDC( hWnd );
   float fScale = GetDeviceCaps( hdc, LOGPIXELSX ) / 96.0f;
   ReleaseDC( hWnd, hdc );

   hb_retnd( (double) fScale );
}

/*-----------------------------------------------------------------------------*/

#pragma ENDDUMP