WM_PAINT work on tabs and resetting to default colour

[Iczer]

i have some troubles with WM_PAINT work on tabs (it wont redraw pic on tab item change) and also with resetting image place holder to default colour before drawing new pic in to it (previous pic can be seen if it aspect ratio is different from new)...

what i'm doing wrong?

see:

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#AutoIt3Wrapper_Version=Beta

#include <File.au3>
#include <Array.au3>

#include <GuiListBox.au3>
#include <GDIPlus.au3>
#include <WinAPIGdi.au3>
#include <WinAPI.au3>

#include <ButtonConstants.au3>
#include <ComboConstants.au3>
#include <GUIConstantsEx.au3>
#include <GUIListBox.au3>
#include <GuiStatusBar.au3>
#include <StaticConstants.au3>
#include <TabConstants.au3>
#include <WindowsConstants.au3>

Global $hBitmap_Scaled, $hGraphics

#Region ### START Koda GUI section ### Form=
$ChoiserGUI = GUICreate("Choiser GUI", 623, 449, 192, 114)
$Tab1 = GUICtrlCreateTab(8, 32, 609, 385)
$TabSheet1 = GUICtrlCreateTabItem("first tab")
$Group1 = GUICtrlCreateGroup("Selector", 16, 64, 329, 193)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Group2 = GUICtrlCreateGroup("Prewiev", 352, 64, 257, 313)
Global $aPrewievPic[4] = [360, 80, 244, 292]
$PrewievPic = GUICtrlCreatePic("", 360, 80, 244, 292, BitOR($GUI_SS_DEFAULT_PIC,$WS_BORDER), BitOR($WS_EX_CLIENTEDGE,$WS_EX_STATICEDGE,$GUI_WS_EX_PARENTDRAG))
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Group3 = GUICtrlCreateGroup("Choise", 16, 264, 329, 113)
GUICtrlCreateGroup("", -99, -99, 1, 1)
$Button_Next = GUICtrlCreateButton("Next", 456, 384, 75, 25)
$TabSheet2 = GUICtrlCreateTabItem("second tab")
$TabSheet3 = GUICtrlCreateTabItem("third tab")
GUICtrlCreateTabItem("")
$StatusBar1 = _GUICtrlStatusBar_Create($ChoiserGUI)
GUIRegisterMsg($WM_PAINT,"WM_PAINT_PrewievPic")
GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###

_GDIPlus_Startup()

$hDC = _WinAPI_GetDC ( $ChoiserGUI )
$BkColor = _WinAPI_GetBkColor ( $hDC )
ConsoleWrite($BkColor&@crlf)
_WinAPI_ReleaseDC($ChoiserGUI, $hDC)
$hBrush = _GDIPlus_BrushCreateSolid($BkColor)

Global $hImage, $hBitmap_Scaled, $hGraphics
$sSourceFolder = "C:\WINDOWS"
$picExtentions = "*.jpeg;*.jpg;*.png;*.tiff;*.tif;*.gif;*.tga;*.bmp;*.pcx;*.jpe;*.jif;*.jfif;*.jfi;*.dib;*.tpic"
$fl = _FileListToArrayRec($sSourceFolder,$picExtentions,Default,Default,Default,  2 )
$spath = $fl[Random(1,$fl[0],1)]

QQQ($spath)

While 1
    $nMsg = GUIGetMsg()
    Switch $nMsg
        Case $GUI_EVENT_CLOSE
            _GDIPlus_Shutdown()
            Exit

        Case $Button_Next
            QQQ($fl[Random(1,$fl[0],1)])


    EndSwitch
WEnd

Func QQQ($spath)
    Local $iW, $iH, $iAspect, $iAspectFrame, $iH_new, $iW_new
    _GDIPlus_BitmapDispose($hImage)
    _GDIPlus_BitmapDispose($hBitmap_Scaled)

    $hImage = _GDIPlus_ImageLoadFromFile($spath)
    $iW = _GDIPlus_ImageGetWidth($hImage)
    $iH = _GDIPlus_ImageGetHeight($hImage)
    $iAspect = $iW/$iH
    $iAspectFrame = $aPrewievPic[2]/$aPrewievPic[3]
    Select
        Case $iAspectFrame >= $iAspect
            $iH_new = $aPrewievPic[3]
            $iW_new = $iH_new*$iAspect
        Case $iAspectFrame < $iAspect
            $iW_new = $aPrewievPic[2]
            $iH_new = $iW_new/$iAspect
    EndSelect

    $hBitmap_Scaled = _GDIPlus_ImageResize($hImage, $iW_new-8, $iH_new-8)
    $hGraphics = _GDIPlus_GraphicsCreateFromHWND($ChoiserGUI)
    _GDIPlus_GraphicsFillRect($hGraphics, $aPrewievPic[0]+4, $aPrewievPic[1]+4, $aPrewievPic[2]-8, $aPrewievPic[3]-8, $hBrush)
    _GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap_Scaled, $aPrewievPic[0]+4, $aPrewievPic[1]+4)

EndFunc

Func WM_PAINT_PrewievPic($hWnd,$wParam,$lParam)
    #forceref $hWnd,$wParam,$lParam
    _GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap_Scaled, $aPrewievPic[0]+4, $aPrewievPic[1]+4)
    Return $GUI_RUNDEFMSG
EndFunc

[Yashied]

Why do not use Pic control?

[Iczer]

it only have support for bmp, jpg and gif but i also need support for png and tif at least...

[Iczer]

well... bump...

also - maybe it's bug?

[Yashied]

Look at example for _WinAPI_GetThemeColor() function.