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Posted (edited)

anyone knows of a to date function UDF that will help adjusting the gui to scale correctly with labels, font sizes.. (for different desktops/dpi)
 
I found this topic

I tried to run it with the example but it errors in scite :

$hDC = DllCall("user32.dll", "long", "ReleaseDC", "long", $hWnd, "long", $hDC)

(56) : ==> Variable used without being declared.:

and it seems to be declared :huh:

 

Thanks

Edited by Deye
Posted

johnone,

executing the example in scite gives the error (edited previous post)

Posted

Run it like this. Don't know if that is really what you are looking for though...

;; GetDPI.au3
;;
;; Get the current DPI (dots per inch) setting, and the ratio
;; between it and approximately 96 DPI.
;;
;; Author: Phillip123Adams
;; Posted: August, 17, 2005, originally developed 10/17/2004,
;; AutoIT 3.1.1.67 (but earlier v3.1.1 versions with DLLCall should work).
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;; Example
 #include<guiconstants.au3>
  ;;
  ;; Get the current DPI.
 $a1 = _GetDPI()
 $iDPI = $a1[1]
 $iDPIRat = $a1[2]
  ;;
  ;; Design the GUI to show how to apply the DPI adjustment.
 GUICreate("Applying DPI to GUI's", 250 * $iDPIRat, 120 * $iDPIRat)
 $lbl = GUICtrlCreateLabel("The current DPI value is " & $iDPI &@lf& "Ratio to 96 is " & $iDPIRat &@lf&@lf& "Call function _GetDPI.  Then multiply all GUI dimensions by the returned value divided by approximately 96.0.", 10 * $iDPIRat, 5 * $iDPIRat, 220 * $iDPIRat, 80 * $iDPIRat)
 $btnClose = GUICtrlCreateButton("Close", 105 * $iDPIRat, 90 * $iDPIRat, 40 * $iDPIRat, 20 * $iDPIRat)
 GUISetState()
  ;;
 while 1
  $iMsg = GUIGetMsg()
  If $iMsg = $GUI_EVENT_CLOSE or $iMsg = $btnClose then ExitLoop
 WEnd
 Exit
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Func _GetDPI ()
  ;; Get the current DPI (dots per inch) setting, and the ratio between it and
  ;; approximately 96 DPI.
  ;;
  ;; Retrun a 1D array of dimension 3.  Indices zero is the dimension of the array
  ;; minus one.  Indices 1 = the current DPI (an integer).  Indices 2 is the ratio
  ;; should be applied to all GUI dimensions to make the GUI automatically adjust
  ;; to suit the various DPI settings.
  ;;
  ;; Author: Phillip123Adams
  ;; Posted: August, 17, 2005, originally developed 6/04/2004,
  ;; AutoIT 3.1.1.67 (but earlier v3.1.1 versions with DLLCall should work).
  ;;
  ;; Note: The dll calls are based upon code from the AutoIt3 forum from a post
  ;; by this-is-me on Nov 23 2004, 10:29 AM under topic "@Larry, Help!"  Thanks
  ;; to this-is-me and Larry.  Prior to that, I was obtaining the current DPI
  ;; from the Registry:
  ;;    $iDPI = RegRead("HKCU\Control Panel\Desktop\WindowMetrics", "AppliedDPI")
  ;;
   Local $a1[3]
   Local $iDPI, $iDPIRat, $Logpixelsy = 90, $hWnd = 0
   Local $hDC = DllCall("user32.dll", "long", "GetDC", "long", $hWnd)
   Local $aRet = DllCall("gdi32.dll", "long", "GetDeviceCaps", "long", $hDC[0], "long", $Logpixelsy)
   $hDC = DllCall("user32.dll", "long", "ReleaseDC", "long", $hWnd, "long", $hDC)
   $iDPI = $aRet[0]
  ;; Set a ratio for the GUI dimensions based upon the current DPI value.
   Select
      Case $iDPI = 0
         $iDPI = 96
         $iDPIRat =  94
      Case $iDPI < 84
         $iDPIRat =  $iDPI / 105
      Case $iDPI < 121
         $iDPIRat =  $iDPI / 96
      Case $iDPI < 145
         $iDPIRat =  $iDPI / 95
      Case Else
         $iDPIRat =  $iDPI / 94
   EndSelect
   $a1[0] = 2
   $a1[1] = $iDPI
   $a1[2] = $iDPIRat
  ;; Return the array
   Return $a1
EndFunc
$dpi = _getDPI()
msgbox(0,"dpi",$dpi[1])

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Posted

 thanks kylomas

so it will only get the dpi for the gui and controls but wont help doing the conversions for re-sizing things around .. it seems like a good  formula 
 
so I'm guessing anything like this can be done only after learning winapi and  _GDIPlus calls 
strange there is no simple UDF for this yet ;)
 
 

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