#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <WinAPIGdiDC.au3>

Example1()
Example2()

Func Example1()
    _GDIPlus_Startup()
    Local $hGUI = GUICreate("GDI+", 400, 300)
    GUISetState(@SW_SHOW)
    Local $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
    Local $hRegion = _GDIPlus_RegionCreate()
    _GDIPlus_RegionSetEmpty($hRegion)
    _GDIPlus_RegionCombineRect($hRegion, 50, 50, 300, 200, 3)
    _GDIPlus_GraphicsSetClipRegion($hGraphic, $hRegion)
    _GDIPlus_GraphicsClear($hGraphic, 0xFF00FF00)
    _GDIPlus_RegionSetInfinite($hRegion)
    _GDIPlus_RegionCombineRect($hRegion, 50, 50, 300, 200, 3)
    _GDIPlus_GraphicsSetClipRegion($hGraphic, $hRegion)
    _GDIPlus_GraphicsClear($hGraphic, 0xFF0000FF)
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
    _GDIPlus_RegionDispose($hRegion)
    _GDIPlus_GraphicsDispose($hGraphic)
    _GDIPlus_Shutdown()
    GUIDelete($hGUI)
EndFunc   ;==>Example1

Func Example2()
    ; X64 running support
    Local $sWow64 = ""
    If @AutoItX64 Then $sWow64 = "\Wow6432Node"

    Run(RegRead("HKLM\SOFTWARE" & $sWow64 & "\AutoIt v3\AutoIt", "InstallDir") & "\Au3Info.exe")
    Local $sClass = "Au3Info"

    WinWait("[CLASS:" & $sClass & "]", "", 3)
    Local $hWnd = WinGetHandle("[CLASS:" & $sClass & "]")
    If @error Then Return MsgBox(16, "", "An error occurred when trying to retrieve the window handle of class " & $sClass)

    Local $aCtrlList = _EnumCtrl($hWnd)

    _GDIPlus_Startup()
    Local $hDC = _WinAPI_GetDC($hWnd)
    Local $hGraphics = _GDIPlus_GraphicsCreateFromHDC($hDC)

    Local $hRegion = _GDIPlus_RegionCreate()
    _GDIPlus_RegionSetEmpty($hRegion)

    Local $aPos
    For $i = 1 To $aCtrlList[0]
        $aPos = ControlGetPos($hWnd, "", $aCtrlList[$i])
        If @error Or Not IsArray($aPos) Then ContinueLoop
        Select
            Case StringInStr($aCtrlList[$i], "SysTabControl32")
                _GDIPlus_RegionCombineRect($hRegion, $aPos[0], $aPos[1], $aPos[2], $aPos[3], 3)
            Case StringInStr($aCtrlList[$i], "Button")
                _GDIPlus_RegionCombineRect($hRegion, $aPos[0], $aPos[1], $aPos[2], $aPos[3], 4)
            Case StringInStr($aCtrlList[$i], "Edit")
                _GDIPlus_RegionCombineRect($hRegion, $aPos[0], $aPos[1], $aPos[2], $aPos[3], 3)
        EndSelect
    Next

    _GDIPlus_GraphicsSetClipRegion($hGraphics, $hRegion)

    Local $iBlue, $iDir = 1
    While WinExists($hWnd)
        $iBlue += 1 * $iDir
        If BitOR($iBlue = 0, $iBlue = 255) Then $iDir *= -1
        _GDIPlus_GraphicsClear($hGraphics, BitOR(0xFF000000, BitAND($iBlue, 0xFF)))
        Sleep(10)
    WEnd

    _GDIPlus_RegionDispose($hRegion)
    _GDIPlus_GraphicsDispose($hGraphics)
    _WinAPI_ReleaseDC($hWnd, $hDC)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example2

Func _EnumCtrl($hWnd)
    Local $sClassList = WinGetClassList($hWnd)
    Local $aSplit = StringSplit($sClassList, @CRLF)

    Local $iCnt, $aCtrlList[1]
    For $i = 1 To $aSplit[0]
        $iCnt = 1
        If $aSplit[$i] = "" Then ContinueLoop
        $aCtrlList[0] += 1
        ReDim $aCtrlList[$aCtrlList[0] + 1]
        $aCtrlList[$aCtrlList[0]] = $aSplit[$i] & $iCnt
        For $j = $i + 1 To $aSplit[0]
            If $aSplit[$i] <> $aSplit[$j] Then
                ContinueLoop
            Else
                $iCnt += 1
                $aCtrlList[0] += 1
                ReDim $aCtrlList[$aCtrlList[0] + 1]
                $aCtrlList[$aCtrlList[0]] = $aSplit[$i] & $iCnt
                $aSplit[$j] = ""
            EndIf
        Next
        $aSplit[$i] = ""
    Next
    Return $aCtrlList
EndFunc   ;==>_EnumCtrl