_StringSize UDF

[Kip]

There is not much else to say when you've read the title and description.

The function + example:

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$text = "Hello World! Whazzup"&@CRLF&"enter"&@CRLF&"enter"&@CRLF&"enter"&@CRLF&"enter"&@CRLF&"enter"&@CRLF&"enter"&@CRLF&"enter"

$iSize = 8.5
$sFont = "Courier New" 



$hGui = GUICreate("dsd")
    
    
    $Label_1 = GUICtrlCreateLabel($text,10,10,500,500)
    GUICtrlSetFont (-1, $iSize, 400, 0, $sFont)
    
    
    
    $aSize = _StringSize($text, $sFont, $iSize)
    
    GUICtrlCreateLabel("",10,0,$aSize[0],9) ; Horizontal bar
    GUICtrlSetBkColor(-1,0x000000)
    GUICtrlCreateLabel("",0,10,9,$aSize[1])    ; Vertical bar
    GUICtrlSetBkColor(-1,0x000000)

GUISetState()



While 1
    
WEnd

; Created by Zedna? +Kip
; Returns an array:
;     [0] = width (px)
;    [1] = height (px)

Func _StringSize($sText, $sFont="Ms Sans Serif", $iSize=8.5, $bItalic=False, $bUnderlined=False, $bStrike=False, $iWeight=400, $sLineBreak=@CRLF)
    
    Local $aReturn[2]
    
    Local $hGui = GUICreate("dsd")
    
    Local $iStyle = 0
    $iStyle += $bItalic*2
    $iStyle += $bUnderlined*4
    $iStyle += $bStrike*8
    
    Local $iLabel = GUICtrlCreateLabel("",10,10,500,500)
    GUICtrlSetFont (-1, $iSize, $iWeight, $iStyle, $sFont)
    
    Local $hControl = GUICtrlGetHandle($iLabel)
    
    Local $hDC = DLLCall("user32.dll","int","GetDC","hwnd",$hControl)
    $hDC = $hDC[0]
    Local $hFont = DllCall("user32.dll", "ptr", "SendMessage", "hwnd", $hControl, "int", 0x0031, "int", 0, "int", 0)
    $hFont = $hFont[0]

    Local $hOldFont = DllCall("GDI32.dll", "hwnd", "SelectObject", "hwnd", $hDC, "hwnd", $hFont)
    $hOldFont = $hOldFont[0]
    
    Local $struct_size = DllStructCreate("int;int")
    
    Local $sLineSplit = StringSplit($sText,$sLineBreak,1)
    Local $i
    
    
    For $i = 1 to $sLineSplit[0]
        
        DllCall("gdi32.dll", "int", "GetTextExtentPoint32", "int", $hDC, "str", $sLineSplit[$i], "long", StringLen($sLineSplit[$i]), "ptr", DllStructGetPtr($struct_size))
        
        ;MsgBox(0,"sdsd",DllStructGetData($struct_size,1))
        
        If DllStructGetData($struct_size,1) > $aReturn[0] Then $aReturn[0] = DllStructGetData($struct_size,1)
        $aReturn[1] += DllStructGetData($struct_size,2)
        
    Next

    DllCall("GDI32.dll", "hwnd", "SelectObject", "hwnd", $hDC, "hwnd", $hOldFont)
    DllCall("GDI32.dll", "int", "DeleteObject", "int", $hOldFont)
    DllCall("User32.dll", "int", "ReleaseDC", "hwnd", 0, "hwnd", $hDC)
    
    GUIDelete($hGui)
    
    Return $aReturn
    
EndFunc

Edited August 28, 2009 by Kip

[Alek]

any reason not to use _GDIPlus_GraphicsMeasureString?

[Kip]

Well, I didn't notice that function to be honest, but some reasons.

- It doesn't require _GDIPlus_StartUp()

- Easier to use

- Takes less memory?

If I look at the example I see that there are 5 things being created:

$hGraphic  = _GDIPlus_GraphicsCreateFromHWND ($hWnd)
    $hFormat = _GDIPlus_StringFormatCreate ()
    $hFamily = _GDIPlus_FontFamilyCreate  ("Arial")
    $hFont = _GDIPlus_FontCreate ($hFamily, 12,  2)
     $tLayout = _GDIPlus_RectFCreate (140,  110,  0,  0)

Compared to:

Local $hGui = GUICreate("dsd")
Local $iLabel = GUICtrlCreateLabel("",10,10,500,500)

Edited August 28, 2009 by Kip

[JScript]

Well, I didn't notice that function to be honest, but some reasons.

- It doesn't require _GDIPlus_StartUp()

- Easier to use

- Takes less memory?

If I look at the example I see that there are 5 things being created:

$hGraphic  = _GDIPlus_GraphicsCreateFromHWND ($hWnd)
    $hFormat = _GDIPlus_StringFormatCreate ()
    $hFamily = _GDIPlus_FontFamilyCreate  ("Arial")
    $hFont = _GDIPlus_FontCreate ($hFamily, 12,  2)
     $tLayout = _GDIPlus_RectFCreate (140,  110,  0,  0)

Compared to:

Local $hGui = GUICreate("dsd")
Local $iLabel = GUICtrlCreateLabel("",10,10,500,500)

I made this UDF a long time ago and it works perfectly!!!

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#include-once
; #INDEX# =======================================================================================================================
; Title .........: _StringEx
; AutoIt Version.: 3.2.12++
; Language.......: English
; Description ...: Add some String functions.
; Version .......: 1.08.2209.2600
; Remarks .......: 
; Credits .......: jscript
; ===============================================================================================================================

; #CURRENT# =====================================================================================================================
;_StringSize
; ===============================================================================================================================

; #INTERNAL_USE_ONLY#============================================================================================================
;==============================================================================================================================

; #VARIABLES# ===================================================================================================================
; ===============================================================================================================================

; #FUNCTION# ====================================================================================================================
; Name...........: _StringSize
; Description ...: Returns the size (in pixels) of an string.
; Syntax.........: _StringSize( "string" [, size [, weight [, fontname ]]] )
; Parameters ....: string   - The string to evaluate the size.
;                  Size     - [Optional] Fontsize (default is 9).
;                  Weight   - [Optional] Font weight (default 400 = normal).
;                  FontName - [Optional] Font to use (OS default GUI font is used if the font is "" or is not found).
; Requirement(s).:
; Return values .: Success  - Returns a 2-element array containing the following information:
;                           $array[0] = Width
;                           $array[1] = Height
;                  Failure  - Returns the same array with 0 and sets @error to 1.
; Author ........: jscript
; Example .......: _StringSize( "Text" )
; ===============================================================================================================================
Func _StringSize($sString, $Isize = 9, $iWeight = 400, $sFontName = "")
    Local $hSTR_INTERNALWIN, $hGuiSwitch, $iCtrlID, $aCtrlGetPos, $aItemSize[2] = [0, 0]
    
    $hSTR_INTERNALWIN = GUICreate("***StringExInternalWin*** - " & Random(8, 1024), 0, 0, 0, 0, _
            BitOR(0x80000000, 0x20000000), BitOR(0x00000080, 0x00000020))   
    $hGuiSwitch = GUISwitch($hSTR_INTERNALWIN)
    
    GUISetFont($Isize, $iWeight, -1, $sFontName, $hSTR_INTERNALWIN)
    $iCtrlID = GUICtrlCreateLabel($sString, 0, 0)
    $aCtrlGetPos = ControlGetPos($hSTR_INTERNALWIN, "", $iCtrlID)
    GUIDelete($hSTR_INTERNALWIN)
    GUISwitch($hGuiSwitch)
    
    If IsArray($aCtrlGetPos) Then
        $aItemSize[0] = $aCtrlGetPos[2]; Width
        $aItemSize[1] = $aCtrlGetPos[3]; Height
        Return SetError(0, 0, $aItemSize)
    EndIf
    Return SetError(1, 0, $aItemSize)
EndFunc   ;==>_GetStringSize

[Kip]

any reason not to use _GDIPlus_GraphicsMeasureString?

And my version can handle strings with enters.

[Skrip]

And my version can handle strings with enters.

Thats actually a very useful feature.

[badapple89]

Been looking at a few of these kinds of UDFs but yours seems pretty simple and measures more accurately.