resize a gui ?

[komalo]

hi

i am using the UpdateLayeredWindow way to put a PNG image on the GUI

but i can't resize it , i mean when using WinMove to change the width & height

the gui don't change but it is moved , the example is taken from lod3n ( PNG as GUI, drop shadows )

expandcollapse popup

#NoTrayIcon
#include <GDIPlus.au3>
#include <WindowsConstants.au3>
#include <GuiConstantsEx.au3>

_GDIPlus_Startup()
$pngSrc = @ScriptDir & "\LaunchySkin.png"
$hImage = _GDIPlus_ImageLoadFromFile($pngSrc)

$width = _GDIPlus_ImageGetWidth($hImage)
$height = _GDIPlus_ImageGetHeight($hImage)

$GUI = GUICreate("lod3n launcher", $width, $height, -1, -1, $WS_POPUP, $WS_EX_LAYERED)
SetBitmap($GUI, $hImage, 255 )
GUISetState()

GUIRegisterMsg($WM_NCHITTEST, "WM_NCHITTEST")

; here comes the problem
MsgBox("","will call WinMove Now ","will call WinMove Now")
$Status = WinMove($GUI,"",0,0,100,100)
MsgBox("","will call WinMove Now ","WinMove Returned : " & $Status)

While 1
    $msg = GUIGetMsg()
    Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
    EndSelect
WEnd

_WinAPI_DeleteObject($hImage)
_GDIPlus_Shutdown()

Func WM_NCHITTEST($hWnd, $iMsg, $iwParam, $ilParam)
    If ($hWnd = $GUI) And ($iMsg = $WM_NCHITTEST) Then Return $HTCAPTION
EndFunc  ;==>WM_NCHITTEST

Func SetBitmap($hGUI, $hImage, $iOpacity)
    Local Const $AC_SRC_ALPHA = 1
    Local $hScrDC, $hMemDC, $hBitmap, $hOld, $pSize, $tSize, $pSource, $tSource, $pBlend, $tBlend

    $hScrDC = _WinAPI_GetDC(0)
    $hMemDC = _WinAPI_CreateCompatibleDC($hScrDC)
    $hBitmap = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImage)
    $hOld = _WinAPI_SelectObject($hMemDC, $hBitmap)
    $tSize = DllStructCreate($tagSIZE)
    $pSize = DllStructGetPtr($tSize)
    DllStructSetData($tSize, "X", _GDIPlus_ImageGetWidth($hImage))
    DllStructSetData($tSize, "Y", _GDIPlus_ImageGetHeight($hImage))
    $tSource = DllStructCreate($tagPOINT)
    $pSource = DllStructGetPtr($tSource)
    $tBlend = DllStructCreate($tagBLENDFUNCTION)
    $pBlend = DllStructGetPtr($tBlend)
    DllStructSetData($tBlend, "Alpha", $iOpacity)
    DllStructSetData($tBlend, "Format", $AC_SRC_ALPHA)
    _WinAPI_UpdateLayeredWindow($hGUI, $hScrDC, 0, $pSize, $hMemDC, $pSource, 0, $pBlend, $ULW_ALPHA)
    _WinAPI_ReleaseDC(0, $hScrDC)
    _WinAPI_SelectObject($hMemDC, $hOld)
    _WinAPI_DeleteObject($hBitmap)
    _WinAPI_DeleteDC($hMemDC)
EndFunc  ;==>SetBitmap

[Valuater]

AFAIK... it can't be done without re-creating the GUI at the size you want

8)

[komalo]

well that's what i think , but i am just searching for another way

also TrueTransparency and FastAero are using the UpdateLayeredWindow

way in blending PNGs on windows , so i thought that resizing it can be done

faster than creating a new one

[komalo]

again ?