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Cyclops

Geting width & height of a graphic

4 posts in this topic

Hi,

i want to knew if its possbile, that i can get width & height of grapic with AutoIt. I looked in the Help, but i didn't have an idea how to realzie that :(

thx,

Cyclops


Sorry for my cruel english :D

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Go over to LazyCat's homepage and find a little something that does

exactly what you want, called : "Images size reader"..

Simple to use, but if you have problems you can probably just PM him..

Good luck anyway !

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#3 ·  Posted (edited)

Puh, LazyCat's Script is good code, but i had an idea for an easier one:

Func test($graphic)
    #include <GuiConstants.au3>
    GuiCreate("pic",0,0,0,0,$WS_POPUPWINDOW)
    $pic = GUICtrlCreatePic ($graphic,0,0,0,0)
    $size = ControlGetPos ("pic", "", $pic)
    Return $size[2] & "x" & $size[3]
EndFunc

$graphic is the grpahicfile...

What do you think about it?

Edited by Cyclops

Sorry for my cruel english :D

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I was working on some JPEG header parsing, whipped a BMP dimension example together, DllStruct.au3 can be found at the link in my sig.

#cs
vi:ts=4 sw=4:
Ejoc
#ce
#include <DllStruct.au3>
Opt("MustDeclareVars",1)
Local $file,$a

;Get the file to open
$file   = FileOpenDialog("Open File","","BMP (*.BMP)",1)
If @error Then
    MsgBox(0,"Error","No file")
    Exit
EndIf

$a  = _BMPDimension($file)
msgbox(0,$file,"Width: " & $a[0] & @CRLF & "Height: " & $a[1])


;=============================================
;   _BMPDimension($szFilename)
;   Success : array containing width and height
;   Failure : sets @ERROR
;               -1 _FileReadToDllStruct Failed
;               -2 DllStructCreate failed(shouldn't happen)
;               -3 Not a BMP
;=============================================
Func _BMPDimension($szFileName)
    Local $a,$rawdata,$p

    $a  = StringSplit("-1,-1",','); returns -1 -1 on failure

; Read the file
    $rawdata    = _FileReadToDllStruct($szFileName)
    If @error Then
        SetError(-1)
        Return $a
    EndIf

; Create a basic BMP header to get the Dimensions
    $p  = DllStructCreate("byte[18];uint;uint",DllStructGetPtr($rawdata))
    If @error Then
        SetError(-2)
        DllStructDelete($rawdata)
        Return $a
    EndIf

;is it a BMP?
    If DllStructGetData($p,1,1) <> 0x42 Or DllStructGetData($p,1,2) <> 0x4D Then
        SetError(-3)
        DllStructDelete($rawdata)
        Return $a
    EndIf

;copy dimensions
    $a[0]   = DllStructGetData($p,2);width
    $a[1]   = DllStructGetData($p,3);height

; free the struct
    DllStructDelete($rawdata)
    Return $a
EndFunc

Start -> Programs -> AutoIt v3 -> AutoIt Help File -> Index -> (The Function you are asking about)----- Links -----DllStruct UDFsRSA Crypto UDFs

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