Center an image formula

[dirty]

I know one here has to know how to calculate the image size based on

#1 Image dimensions

#2 Given frame to fin this image

#3 this code

#include <GDIPlus.au3>
    $PATH = GUICtrlRead ($MainImagePath)
    If Not @error Then
        _GDIPlus_Startup()
        $IMG = _GDIPlus_ImageLoadFromFile($PATH)
        $W = _GDIPlus_ImageGetWidth($IMG)
        $H = _GDIPlus_ImageGetHeight($IMG)
        _GDIPlus_ImageDispose($IMG)
        _GDIPlus_Shutdown()
        MsgBox(0,$PATH,$W & @CRLF & $H) ;size of an image

        $Image = GUICtrlCreatePic ("F:\Pictures\0106800001a.jpg",405,20,355,275) ;355X275 is area for an image
    EndIf

My image is 1280X960 by my Image area in GUI is smaller, so i want to resize this image to scale its self down till it fits keeping its size ration locked. 1 and most important thing to cincider is that there will be other images with different sizes, so is there a way to make this thing to calculate and scale an image regardless what size to fit into the given frame on my GUI ?

Thanks so much in advance.

Hope to get the formula soon or something

[Yashied]

#Include <Math.au3>

$ImageWidth = 1280
$ImageHeight = 960
$AreaWidth = 355
$AreaHeight = 275

$Scale = _Min($AreaWidth / $ImageWidth, $AreaHeight / $ImageHeight)
$NewImageWidth = $ImageWidth * $Scale
$NewImageHeight = $ImageHeight * $Scale

ConsoleWrite(Round($NewImageWidth) & 'x' & Round($NewImageHeight) & @CR)

[UEZ]

Look here:

Br,

UEZ

[dirty]

Yashied thank you very much.

Was most simplified and easy to implement into existing code without having too much new variables.