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Auto Set GUI DPI


DigDeep
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Hi,

If someone can help me with setting my GUI correctly please.

I have set my machine with 125% DPI. If I am changing the DPI settings from 125% - 150%, the GUI goes too huge in size. I even tried getting the DPI settings in the GUI but it's still the same.

Is there a way to set the GUI and all the lables / buttons inside it to not change (Fixed) at all even though screen DPI will change from 100 / 125 / 150...?

I am posting both with and without DPI settings GUI.

Without DPI

#RequireAdmin

#include <GUIConstantsEx.au3>
#include <StaticConstants.au3>
#include <WindowsConstants.au3>


#Region ### START Koda GUI section ### 
$Form1 = GUICreate("Form1", 1255, 646, -1, -1)
$Label1 = GUICtrlCreateLabel("  Label1  ", 976, 24, 66, 20, $SS_RIGHT)
GUICtrlSetFont(-1, 10, 400, 0, "Verdana")
$Label2 = GUICtrlCreateLabel("Label2", 8, 701, 36, 17)
$Label3 = GUICtrlCreateLabel("Label3", 609, 250, 270, 205)
$Pic1 = GUICtrlCreatePic("", 698, 263, 100, 75)
GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit

    EndSwitch
WEnd

 

With Auto DPI

#RequireAdmin

#include <GUIConstantsEx.au3>
#include <StaticConstants.au3>
#include <WindowsConstants.au3>

#include <FontConstants.au3> ; DPI
#include <GuiMenu.au3> ; DPI

Func _GetDPI()
    Local $hDC = _WinAPI_GetDC(0)
    Local $DPI = _WinAPI_GetDeviceCaps($hDC, $LOGPIXELSY)
    _WinAPI_ReleaseDC(0, $hDC)

    Select
        Case $DPI = 0
            $DPI = 96
        Case $DPI < 84
            $DPI /= 105
        Case $DPI < 121
            $DPI /= 96
        Case $DPI < 145
            $DPI /= 95
        Case Else
            $DPI /= 94
    EndSelect

    Return Round($DPI, 2)
EndFunc   ;==>_GetDPI

$DPI = _GetDPI()



#Region ### START Koda GUI section ###
$Form1 = GUICreate("Form1", 1255 * $DPI, 646 * $DPI, -1 * $DPI, -1 * $DPI)
$Label1 = GUICtrlCreateLabel("  Label1  ", 976 * $DPI, 24 * $DPI, 66 * $DPI, 20 * $DPI, $SS_RIGHT)
GUICtrlSetFont(-1, 10, 400, 0, "Verdana")
$Label2 = GUICtrlCreateLabel("Label2", 8 * $DPI, 701 * $DPI, 36 * $DPI, 17 * $DPI)
$Label3 = GUICtrlCreateLabel("Label3", 609 * $DPI, 250 * $DPI, 270 * $DPI, 205 * $DPI)
$Pic1 = GUICtrlCreatePic("", 698 * $DPI, 263 * $DPI, 100 * $DPI, 75 * $DPI)
GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit

    EndSwitch
WEnd

 

Edited by DigDeep
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  • 2 weeks later...

You could use the directive in AutoIt3Wrapper to compile for high DPI

#AutoIt3Wrapper_Res_HiDpi=                      ;(Y/N) Compile for high DPI. Default=N

No idea if that works or not, but it's something to try.

If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
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@teddybear69, I tried re-creating my application at 100%,125% and 150% both at Full HD & 4K resolutions display.

@BrewManNH, I already had the HiDPI declared. I even tried to re-create removing the HiDPI.

Using both the above options the application is running fine if at 100% or 125% but as soon as the screen is changed to 150%, the GUI goes completely outside the screen panels.

For now, I have removed DPI settings completely. :( 

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Try this:

#include <GUIConstantsEx.au3>
#include <StaticConstants.au3>
#include <WindowsConstants.au3>

#include <FontConstants.au3> ; DPI
#include <GuiMenu.au3> ; DPI

#include <GDIPlus.au3>

Global $aDPI = _GDIPlus_GraphicsGetDPIRatio()
ConsoleWrite($aDPI[0] & @CRLF)

#Region ### START Koda GUI section ###
$Form1 = GUICreate("Form1", 1255, 646, -1, -1)
$Label1 = GUICtrlCreateLabel("  Label1  ", 976, 24, 66, 20, $SS_RIGHT)
GUICtrlSetFont(-1, 10 * $aDPI[0], 400, 0, "Verdana")
$Label2 = GUICtrlCreateLabel("Label2", 8, 701, 36, 17)
GUICtrlSetFont(-1, 8.5 * $aDPI[0])
$Label3 = GUICtrlCreateLabel("Label3", 609, 250, 270, 205)
GUICtrlSetFont(-1, 8.5 * $aDPI[0])
$Pic1 = GUICtrlCreatePic("", 698, 263, 100, 75)
GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            Exit

    EndSwitch
WEnd

Func _GDIPlus_GraphicsGetDPIRatio($iDPIDef = 96)
    _GDIPlus_Startup()
    Local $hGfx = _GDIPlus_GraphicsCreateFromHWND(0)
    If @error Then Return SetError(1, @extended, 0)
    Local $aResult = DllCall($__g_hGDIPDll, "int", "GdipGetDpiX", "handle", $hGfx, "float*", 0)
    If @error Then Return SetError(2, @extended, 0)
    Local $iDPI = $aResult[2]
    _GDIPlus_GraphicsDispose($hGfx)
    Local $aResults[2] = [$iDPIDef / $iDPI, $iDPI / $iDPIDef]
    _GDIPlus_Shutdown()
    Return $aResults
EndFunc   ;==>_GDIPlus_GraphicsGetDPIRatio

 

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