GDI+ gezeichnetes png wird bei WM_PAINT kantig?!

SEuBo

Hallo:

In diesem .rar hier findet ihr ein png Bild und das Script.
http://www.box.net/shared/2z98a50mhi

Im GUI soll dieses PNG angezeigt werden - klappt auch.
Wenn man jetzt allerdings das GUI aus dem Desktop rausschiebt,
und dann wieder reinzieht, wird die ganze Grafik irgendwie "kantig."
Vorher:
autoit.de/wcf/attachment/8078/
Nachher:
autoit.de/wcf/attachment/8079/

Als ob GDI die Kantenglättung ausschaltet.

Kann mir einer sagen warum das so ist?

Hier nochmal das Script, falls jemand das .rar nicht runterladen möchte:

Spoiler anzeigen

[autoit]

#include <GDIPlus.au3>
#include <WinAPI.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

[/autoit] [autoit][/autoit] [autoit]

$hGUI = GUICreate("DescribeIt Installer", 470, 260, -1, -1)
_GDIPlus_Startup()
$hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\describeit.png")
$hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)

[/autoit] [autoit][/autoit] [autoit]

$idDestination = GUICtrlCreateGroup("Destination path", 16, 96, 433, 49)
$idPath = GUICtrlCreateInput("", 24, 112, 321, 21)
$id_browse = GUICtrlCreateButton("Browse...", 352, 112, 89, 25, $WS_GROUP)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$idText = GUICtrlCreateLabel( _
"Setup will now install DescribeIt on your computer. Please your installation directory below." & @CRLF & _
"If the selected directory does not exist, it will be created.", 16, 152, 427, 50)
$idInstall = GUICtrlCreateButton("Start Installation", 304, 216, 145, 33, $WS_GROUP)
$idExit = GUICtrlCreateButton("Exit Installation", 16, 216, 137, 33, $WS_GROUP)

[/autoit] [autoit][/autoit] [autoit]

GUIRegisterMsg($WM_PAINT, "MY_WM_PAINT")
GUISetState(@SW_SHOW)

[/autoit] [autoit][/autoit] [autoit]

While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
; Clean up resources
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_ImageDispose($hImage)
_GDIPlus_Shutdown()
Exit

[/autoit] [autoit][/autoit] [autoit]

EndSwitch
WEnd

[/autoit] [autoit][/autoit] [autoit][/autoit] [autoit]

; Draw PNG image
Func MY_WM_PAINT($hWnd, $Msg, $wParam, $lParam)
_WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_UPDATENOW)
_GDIPlus_GraphicsDrawImage($hGraphic, $hImage, 10,-40)
_WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_VALIDATE)
Return $GUI_RUNDEFMSG
EndFunc ;==>MY_WM_PAINT

[/autoit]

<- Vista 32 Bit.

**UEZ**

Probiere das mal:

Spoiler anzeigen

[autoit]

#include <GDIPlus.au3>
#include <WinAPI.au3>
#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

[/autoit] [autoit][/autoit] [autoit]

$w = 470
$h = 260
$hGUI = GUICreate("DescribeIt Installer", $w, $h, -1, -1)
$GUI_Back_Color = 0xF0F0F0
GUISetBkColor($GUI_Back_Color)
_GDIPlus_Startup()
$hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\describeit.png")
$iX = _GDIPlus_ImageGetWidth($hImage)
$iY = _GDIPlus_ImageGetHeight($hImage) - 4
$hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
$hBrush = _GDIPlus_BrushCreateSolid(0xFF000000 + $GUI_Back_Color)

[/autoit] [autoit][/autoit] [autoit]

$hBitmap = _GDIPlus_BitmapCreateFromGraphics($w, $h, $hGraphic)
$hBackbuffer = _GDIPlus_ImageGetGraphicsContext($hBitmap)

[/autoit] [autoit][/autoit] [autoit]

$idDestination = GUICtrlCreateGroup("Destination path", 16, 96, 433, 49)
$idPath = GUICtrlCreateInput("", 24, 112, 321, 21)
$id_browse = GUICtrlCreateButton("Browse...", 352, 112, 89, 25, $WS_GROUP)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$idText = GUICtrlCreateLabel( _
"Setup will now install DescribeIt on your computer. Please your installation directory below." & @CRLF & _
"If the selected directory does not exist, it will be created.", 16, 152, 427, 50)
$idInstall = GUICtrlCreateButton("Start Installation", 304, 216, 145, 33, $WS_GROUP)
$idExit = GUICtrlCreateButton("Exit Installation", 16, 216, 137, 33, $WS_GROUP)

[/autoit] [autoit][/autoit] [autoit]

GUIRegisterMsg($WM_PAINT, "MY_WM_PAINT")
_WinAPI_RedrawWindow($hGui, 0, 0, $RDW_INTERNALPAINT)
GUISetState(@SW_SHOW)

[/autoit] [autoit][/autoit] [autoit]

While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
; Clean up resources
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_BitmapDispose($hBitmap)
_GDIPlus_GraphicsDispose($hBackbuffer)
_GDIPlus_ImageDispose($hImage)
_GDIPlus_BrushDispose($hBrush)
_GDIPlus_Shutdown()
Exit

[/autoit] [autoit][/autoit] [autoit]

EndSwitch
WEnd

[/autoit] [autoit][/autoit] [autoit][/autoit] [autoit]

; Draw PNG image
Func MY_WM_PAINT($hWnd, $Msg, $wParam, $lParam)
_WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_UPDATENOW)
_GDIPlus_GraphicsFillRect($hBackbuffer, 0, 0, 470, $iY, $hBrush)
_GDIPlus_GraphicsDrawImage($hBackbuffer, $hImage, 10, -40)
_GDIPlus_GraphicsDrawImageRect($hGraphic, $hBitmap, 0, 0, $w, $h)
_WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_VALIDATE)
Return $GUI_RUNDEFMSG
EndFunc ;==>MY_WM_PAINT

[/autoit]

Gruß,
UEZ

SEuBo

Perfekt danke!