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GUIRegisterMsgEx / GUICtrlSetOnEventEx

wolf9228

By wolf9228,
in AutoIt Example Scripts

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wolf9228 Universalist

wolf9228

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Posted (edited)

Allows the project to register and receive messages to specific functions
All Files
RegMsg.zip

RegisterMsg.au3

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

Global $Hookhandle = 0, $GUIRegMsgProcA = 0, $RegisterMsgArray[1][2],$RegNotficCodeArray[1][2] _
,$WPhandle = 0,$GUIRegMsgProcB = 0,$CurrentwParam = 0,$CurrentlParam = 0,$GUIRegMsgProcBPtr = 0 , _
$Organize_WM_COMMAND_NotficCode = True ,$Test_WM_COMMAND_NotficCode = True,$CurrentParenthWnd = 0 _
,$ParentWinsArray[1]


Func GUIRegisterMsgEx($hWndParent,$Message,$MsgProcName)
if (Not (_WinAPI_IsWindow($hWndParent)) Or _WinAPI_GetParent($hWndParent)) Then Return False

Local $ElementsA , $ElementsB , $MsgAndProcArray[1][2] , $RegMsgProc
$RegMsgProc = DllCallbackRegister($MsgProcName,"LRESULT","HWND;UINT;WPARAM;LPARAM")
if @error Then Return False
DllCallbackFree($RegMsgProc)

if (Not($Hookhandle)) Then
Local $lpdwProcessId,$HMOD
$GUIRegMsgProcA = DllCallbackRegister("GUIRegMsgProcA","LRESULT","INT;WPARAM;LPARAM")
if @error Then Return False
$GUIRegMsgProcB = DllCallbackRegister("GUIRegMsgProcB","LRESULT","HWND;UINT;WPARAM;LPARAM")
if @error Then
DllCallbackFree($GUIRegMsgProcA)
Return False
EndIf
$GUIRegMsgProcBPtr = DllCallbackGetPtr($GUIRegMsgProcB)
$HMOD = _WinAPI_GetModuleHandle(0)
$Hookhandle = _WinAPI_SetWindowsHookEx($WH_CALLWNDPROC,DllCallbackGetPtr($GUIRegMsgProcA) _
,$HMOD,_WinAPI_GetWindowThreadProcessId($hWndParent,$lpdwProcessId))
if (Not($Hookhandle)) Then
DllCallbackFree($GUIRegMsgProcA)
DllCallbackFree($GUIRegMsgProcB)
Return False
EndIf
OnAutoItExitRegister("atGUIRegisterMsgExit")
EndIf

$ElementsA = ArraySearch($RegisterMsgArray,$hWndParent,0)
if ($ElementsA <> -1) Then
$MsgAndProcArray = $RegisterMsgArray[$ElementsA][1]
$ElementsB = ArraySearch($MsgAndProcArray,$Message,0)
if ($ElementsB <> -1) Then
$MsgAndProcArray[$ElementsB][1] = $MsgProcName
$RegisterMsgArray[$ElementsA][1] = $MsgAndProcArray
Else
ReDim $MsgAndProcArray[UBound($MsgAndProcArray) + 1][2]
$MsgAndProcArray[UBound($MsgAndProcArray) - 2][0] = $Message
$MsgAndProcArray[UBound($MsgAndProcArray) - 2][1] = $MsgProcName
$RegisterMsgArray[$ElementsA][1] = $MsgAndProcArray
EndIf
Else
ReDim $RegisterMsgArray[UBound($RegisterMsgArray) + 1][2]
ReDim $MsgAndProcArray[UBound($MsgAndProcArray) + 1][2]
$RegisterMsgArray[UBound($RegisterMsgArray) - 2][0] = $hWndParent
$MsgAndProcArray[UBound($MsgAndProcArray) - 2][0] = $Message
$MsgAndProcArray[UBound($MsgAndProcArray) - 2][1] = $MsgProcName
$RegisterMsgArray[UBound($RegisterMsgArray) - 2][1] = $MsgAndProcArray
EndIf

$ElementsA = ArraySearch($ParentWinsArray,$hWndParent)
if ($ElementsA = -1) Then
$ParentWinsArray[UBound($ParentWinsArray) - 1] = $hWndParent
ReDim $ParentWinsArray[UBound($ParentWinsArray) + 1]
EndIf

Return True
EndFunc

Func UnGUIRegisterMsgEx($hWndParent,$Message)
if (Not (_WinAPI_IsWindow($hWndParent)) Or _WinAPI_GetParent($hWndParent)) Then Return False

$ElementsA = ArraySearch($RegisterMsgArray,$hWndParent,0)
if ($ElementsA <> -1) Then
$MsgAndProcArray = $RegisterMsgArray[$ElementsA][1]
$ElementsB = ArraySearch($MsgAndProcArray,$Message,0)
if ($ElementsB <> -1) Then
if UBound($MsgAndProcArray) > 2 Then
Local $NewMsgAndProcArray[UBound($MsgAndProcArray) - 1][2] , $j = 0
For $i = 0 To UBound($MsgAndProcArray) - 1
if $ElementsB = $i Then ContinueLoop
$NewMsgAndProcArray[$j][0] = $MsgAndProcArray[$i][0]
$NewMsgAndProcArray[$j][1] = $MsgAndProcArray[$i][1]
$j += 1
Next
$RegisterMsgArray[$ElementsA][1] = $NewMsgAndProcArray
Else
Local $NewMsgAndProcArray[1][2]
$RegisterMsgArray[$ElementsA][1] = $NewMsgAndProcArray
EndIf
Else
Return False
EndIf
Else
Return False
EndIf
Return True
EndFunc

Func GUICtrlSetOnEventEx($ControlID,$NotficCode,$NCodeProcName)
if Not IsHWnd($ControlID) Then $ControlID = GUICtrlGetHandle($ControlID)
if (Not (_WinAPI_IsWindow($ControlID)) Or Not(_WinAPI_GetParent($ControlID))) Then Return False

Local $ElementsA , $ElementsB , $NCodeAndProcArray[1][2] , $RegNCodeProc
$RegNCodeProc = DllCallbackRegister($NCodeProcName,"NONE","HWND;INT;INT")
if @error Then Return False
DllCallbackFree($RegNCodeProc)

if (Not($Hookhandle)) Then
Local $lpdwProcessId,$HMOD
$GUIRegMsgProcA = DllCallbackRegister("GUIRegMsgProcA","LRESULT","INT;WPARAM;LPARAM")
if @error Then Return False
$GUIRegMsgProcB = DllCallbackRegister("GUIRegMsgProcB","LRESULT","HWND;UINT;WPARAM;LPARAM")
if @error Then
DllCallbackFree($GUIRegMsgProcA)
Return False
EndIf
$GUIRegMsgProcBPtr = DllCallbackGetPtr($GUIRegMsgProcB)
$HMOD = _WinAPI_GetModuleHandle(0)
$Hookhandle = _WinAPI_SetWindowsHookEx($WH_CALLWNDPROC,DllCallbackGetPtr($GUIRegMsgProcA) _
,$HMOD,_WinAPI_GetWindowThreadProcessId($ControlID,$lpdwProcessId))
if (Not($Hookhandle)) Then
DllCallbackFree($GUIRegMsgProcA)
DllCallbackFree($GUIRegMsgProcB)
Return False
EndIf
OnAutoItExitRegister("atGUIRegisterMsgExit")
EndIf

$ElementsA = ArraySearch($RegNotficCodeArray,$ControlID,0)
if ($ElementsA <> -1) Then
$NCodeAndProcArray = $RegNotficCodeArray[$ElementsA][1]
$ElementsB = ArraySearch($NCodeAndProcArray,$NotficCode,0)
if ($ElementsB <> -1) Then
$NCodeAndProcArray[$ElementsB][1] = $NCodeProcName
$RegNotficCodeArray[$ElementsA][1] = $NCodeAndProcArray
Else
ReDim $NCodeAndProcArray[UBound($NCodeAndProcArray) + 1][2]
$NCodeAndProcArray[UBound($NCodeAndProcArray) - 2][0] = $NotficCode
$NCodeAndProcArray[UBound($NCodeAndProcArray) - 2][1] = $NCodeProcName
$RegNotficCodeArray[$ElementsA][1] = $NCodeAndProcArray
EndIf
Else
ReDim $RegNotficCodeArray[UBound($RegNotficCodeArray) + 1][2]
ReDim $NCodeAndProcArray[UBound($NCodeAndProcArray) + 1][2]
$RegNotficCodeArray[UBound($RegNotficCodeArray) - 2][0] = $ControlID
$NCodeAndProcArray[UBound($NCodeAndProcArray) - 2][0] = $NotficCode
$NCodeAndProcArray[UBound($NCodeAndProcArray) - 2][1] = $NCodeProcName
$RegNotficCodeArray[UBound($RegNotficCodeArray) - 2][1] = $NCodeAndProcArray
EndIf

$ElementsA = ArraySearch($ParentWinsArray,_WinAPI_GetParent($ControlID))
if ($ElementsA = -1) Then
$ParentWinsArray[UBound($ParentWinsArray) - 1] = _WinAPI_GetParent($ControlID)
ReDim $ParentWinsArray[UBound($ParentWinsArray) + 1]
EndIf

Return True
EndFunc

Func UnGUICtrlSetOnEventEx($ControlID,$NotficCode)
if Not IsHWnd($ControlID) Then $ControlID = GUICtrlGetHandle($ControlID)
if (Not (_WinAPI_IsWindow($ControlID)) Or Not(_WinAPI_GetParent($ControlID))) Then Return False

$ElementsA = ArraySearch($RegNotficCodeArray,$ControlID,0)
if ($ElementsA <> -1) Then
$NCodeAndProcArray = $RegNotficCodeArray[$ElementsA][1]
$ElementsB = ArraySearch($NCodeAndProcArray,$NotficCode,0)
if ($ElementsB <> -1) Then
if UBound($NCodeAndProcArray) > 2 Then
Local $NewNCodeAndProcArray[UBound($NCodeAndProcArray) - 1][2] , $j = 0
For $i = 0 To UBound($NCodeAndProcArray) - 1
if $ElementsB = $i Then ContinueLoop
$NewNCodeAndProcArray[$j][0] = $NCodeAndProcArray[$i][0]
$NewNCodeAndProcArray[$j][1] = $NCodeAndProcArray[$i][1]
$j += 1
Next
$RegNotficCodeArray[$ElementsA][1] = $NewNCodeAndProcArray
Else
Local $NewNCodeAndProcArray[1][2]
$RegNotficCodeArray[$ElementsA][1] = $NewNCodeAndProcArray
EndIf
Else
Return False
EndIf
Else
Return False
EndIf
Return True
EndFunc


Func GUIRegMsgProcA($nCode,$wParam,$lParam)
if ($nCode < 0) Then Return _WinAPI_CallNextHookEx($Hookhandle,$nCode,$wParam,$lParam)

Local $ElementsA = -1,$ElementsB = -1,$ElementsC = -1,$ElementsD = -1,$ihwnd = 0,$iMessage = 0
Local $tagCWPSTRUCT,$CWPSTRUCT,$CtrlHwnd,$NotficCode,$ControlID,$iNMHDR
$xtagCWPSTRUCT = "LPARAM lParam;WPARAM wParam;UINT message;HWND hwnd"
$CWPSTRUCT = DllStructCreate($xtagCWPSTRUCT,$lParam)
$iMessage = DllStructGetData($CWPSTRUCT,"message")
$ihwnd = DllStructGetData($CWPSTRUCT,"hwnd")

Switch ($iMessage)
Case $WM_COMMAND
$CtrlHwnd = HWnd(DllStructGetData($CWPSTRUCT,"lParam"))
$NotficCode = _WinAPI_HiWord(DllStructGetData($CWPSTRUCT,"wParam"))
$ControlID = _WinAPI_LoWord(DllStructGetData($CWPSTRUCT,"wParam"))
$ElementsC = ArraySearch($RegNotficCodeArray,$CtrlHwnd,0)
if ($ElementsC <> -1) Then _
$ElementsD = ArraySearch($RegNotficCodeArray[$ElementsC][1],$NotficCode,0)
Case $WM_NOTIFY
Local $xtagNMHDR = "HWND hwndFrom;UINT_PTR idFrom;UINT code"
$iNMHDR = DllStructCreate($xtagNMHDR,DllStructGetData($CWPSTRUCT,"lParam"))
$CtrlHwnd =  DllStructGetData($iNMHDR,"hwndFrom")
$NotficCode = DllStructGetData($iNMHDR,"code")
$ControlID = DllStructGetData($iNMHDR,"idFrom")
$ElementsC = ArraySearch($RegNotficCodeArray,$CtrlHwnd,0)
if ($ElementsC <> -1) Then _
$ElementsD = ArraySearch($RegNotficCodeArray[$ElementsC][1],$NotficCode,0)
EndSwitch

$ElementsA = ArraySearch($RegisterMsgArray,$ihwnd,0)
if ($ElementsA <> -1) Then $ElementsB = ArraySearch($RegisterMsgArray[$ElementsA][1],$iMessage,0)
if ($ElementsB = -1 And $ElementsD = -1) Then Return _
_WinAPI_CallNextHookEx($Hookhandle,$nCode,$wParam,$lParam)

if Not ($WPhandle) Then
$WPhandle = _WinAPI_SetWindowLong($ihwnd,$GWL_WNDPROC,$GUIRegMsgProcBPtr)
Else
_WinAPI_SetWindowLong($ihwnd,$GWL_WNDPROC,$GUIRegMsgProcBPtr)
EndIf

Return _WinAPI_CallNextHookEx($Hookhandle,$nCode,$wParam,$lParam)

EndFunc


Func GUIRegMsgProcB($hWnd,$Message,$wParam,$lParam)

Local $ElementsA = -1,$ElementsB = -1,$ElementsC = -1,$ElementsD = -1,$CtrlHwnd,$NotficCode
Local $ControlID,$CurrentProcC = "" , $CurrentProcD = "",$xtagNMHDR,$iNMHDR,$NCodeAndProcArray
Local $MsgAndProcArray,$pReturn

$CurrentwParam = 0
$CurrentlParam = 0
$CurrentParenthWnd = 0
Switch ($Message)
Case $WM_COMMAND
$CtrlHwnd = HWnd($lParam)
$NotficCode = _WinAPI_HiWord($wParam)
$ControlID = _WinAPI_LoWord($wParam)
$ElementsC = ArraySearch($RegNotficCodeArray,$CtrlHwnd,0)
if ($ElementsC <> -1) Then _
$ElementsD = ArraySearch($RegNotficCodeArray[$ElementsC][1],$NotficCode,0)
if ($ElementsD <> -1) Then
$NCodeAndProcArray = $RegNotficCodeArray[$ElementsC][1]
$CurrentwParam = $wParam
$CurrentlParam = $lParam
$CurrentParenthWnd = $hWnd
$CurrentProcC = $NCodeAndProcArray[$ElementsD][1]
if ($Organize_WM_COMMAND_NotficCode = True) Then
if ($Test_WM_COMMAND_NotficCode = True) Then
$Test_WM_COMMAND_NotficCode = False
Call($CurrentProcC,$CtrlHwnd,$ControlID,$NotficCode)
$Test_WM_COMMAND_NotficCode = True
EndIf
Else
Call($CurrentProcC,$CtrlHwnd,$ControlID,$NotficCode)
EndIf
EndIf
Case $WM_NOTIFY
$xtagNMHDR = "HWND hwndFrom;UINT_PTR idFrom;UINT code"
$iNMHDR = DllStructCreate($xtagNMHDR,$lParam)
$CtrlHwnd =  DllStructGetData($iNMHDR,"hwndFrom")
$NotficCode = DllStructGetData($iNMHDR,"code")
$ControlID = DllStructGetData($iNMHDR,"idFrom")
$ElementsC = ArraySearch($RegNotficCodeArray,$CtrlHwnd,0)
if ($ElementsC <> -1) Then _
$ElementsD = ArraySearch($RegNotficCodeArray[$ElementsC][1],$NotficCode,0)
if ($ElementsD <> -1) Then
$NCodeAndProcArray = $RegNotficCodeArray[$ElementsC][1]
$CurrentwParam = $wParam
$CurrentlParam = $lParam
$CurrentParenthWnd = $hWnd
$CurrentProcC = $NCodeAndProcArray[$ElementsD][1]
Call($CurrentProcC,$CtrlHwnd,$ControlID,$NotficCode)
EndIf
EndSwitch

$ElementsA = ArraySearch($RegisterMsgArray,$hwnd,0)
if ($ElementsA <> -1) Then $ElementsB = ArraySearch($RegisterMsgArray[$ElementsA][1],$Message,0)
if ($ElementsB <> -1) Then
$MsgAndProcArray = $RegisterMsgArray[$ElementsA][1]
$CurrentProcD = $MsgAndProcArray[$ElementsB][1]
$pReturn = Call($CurrentProcD,$hWnd,$Message,$wParam,$lParam)
if ($pReturn) Then Return $pReturn
EndIf

return _WinAPI_CallWindowProc($WPhandle,$hWnd,$Message,$wParam,$lParam)

EndFunc

Func GetwParam()
Return $CurrentwParam
EndFunc

Func GetlParam()
Return $CurrentlParam
EndFunc

Func GetParenthWnd()
Return $CurrentParenthWnd
EndFunc

Func ArraySearch($Array,$Value,$ColIndex = -1)
if ($ColIndex == -1) Then
For $i = 0 To UBound($Array) - 1
if $Array[$i] == $Value Then Return $i
Next
Else
if ($ColIndex < 0 Or $ColIndex > (UBound($Array,2) - 1)) Then Return -1
For $i = 0 To UBound($Array) - 1
if $Array[$i][$ColIndex] == $Value Then Return $i
Next
EndIf
Return -1
EndFunc

Func atGUIRegisterMsgExit()
For $i = 0 To UBound($ParentWinsArray) - 1
if _WinAPI_IsWindow($ParentWinsArray[$i]) Then _WinAPI_DestroyWindow($ParentWinsArray[$i])
Next
_WinAPI_UnhookWindowsHookEx($Hookhandle)
DllCallbackFree($GUIRegMsgProcA)
DllCallbackFree($GUIRegMsgProcB)
EndFunc

Example1.au3

#Include <GuiButton.au3>
#Include "RegisterMsg.au3"
; GUICtrlSetOnEventEx($ControlID,$NotficCode,$NCodeProcName)
;$NotficCode ==> (WM_COMMAND Notification Code And WM_NOTIFY Notification Code)


GUICreate("My GUI Button")
$Button_1 = GUICtrlCreateButton("Clicked Button 1", 10,30,200,30,$BS_NOTIFY)
GUICtrlSetOnEventEx($Button_1,$BN_CLICKED,"ClickedButton_1")
GUICtrlSetOnEventEx($Button_1,$BN_SETFOCUS,"SetFocusButton_1")
GUICtrlSetOnEventEx($Button_1,$BN_KILLFOCUS,"KillFocusButton_1")
GUICtrlSetOnEventEx($Button_1,$BCN_HOTITEMCHANGE,"HotitemChanegButton_1")
$Button_2 = GUICtrlCreateButton("Dblclk Button 2", 10,70,200,30,$BS_NOTIFY)
GUICtrlSetOnEventEx($Button_2,$BN_DBLCLK,"DblclkButton_2")
GUICtrlSetOnEventEx($Button_2,$BN_SETFOCUS,"SetFocusButton_2")
GUICtrlSetOnEventEx($Button_2,$BN_KILLFOCUS,"KillFocusButton_2")
GUICtrlSetOnEventEx($Button_2,$BCN_HOTITEMCHANGE,"HotitemChanegButton_2")

$Button_3 = GUICtrlCreateButton("Button 3", 10,110,200,30)
GUISetState()

While 1
$msg = GUIGetMsg()
Select
Case $msg = $GUI_EVENT_CLOSE
ExitLoop
Case $msg = $Button_3
MsgBox(0, 'Testing', 'Button 3 was pressed')
EndSelect
WEnd
Exit

Func ClickedButton_1($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
MsgBox(0,"MSG","Clicked Button_1")
EndFunc

Func SetFocusButton_1($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
TrayTip("MSG", "SetFocus Button_1", 5, 1)
EndFunc

Func KillFocusButton_1($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
TrayTip("MSG", "KillFocus Button_1", 5, 1)
EndFunc

Func HotitemChanegButton_1($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
TrayTip("MSG", "HotitemChaneg Button_1", 5, 1)
EndFunc

Func DblclkButton_2($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
MsgBox(0,"MSG","Dblclk Button_2")
EndFunc

Func SetFocusButton_2($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
TrayTip("MSG", "SetFocus Button_2", 5, 1)
EndFunc

Func KillFocusButton_2($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
TrayTip("MSG", "KillFocus Button_2", 5, 1)
EndFunc

Func HotitemChanegButton_2($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
TrayTip("MSG", "HotitemChaneg Button_2", 5, 1)
EndFunc

Example2.au3

#include <GUIComboBox.au3>
#Include "RegisterMsg.au3"
; GUICtrlSetOnEventEx($ControlID,$NotficCode,$NCodeProcName)
;$NotficCode ==> (WM_COMMAND Notification Code And WM_NOTIFY Notification Code)

$hGUI = GUICreate("(UDF) ComboBox Create", 400, 296)
$ComboBox = _GUICtrlComboBox_Create($hGUI, "", 2, 20, 396, 296)
GUICtrlSetOnEventEx($ComboBox,$CBN_CLOSEUP,"CLOSEUP")
GUICtrlSetOnEventEx($ComboBox,$CBN_DROPDOWN,"DROPDOWN")
GUICtrlSetOnEventEx($ComboBox,$CBN_SELCHANGE,"SELCHANGE")
GUISetState()
_GUICtrlComboBox_BeginUpdate($ComboBox)
_GUICtrlComboBox_AddDir($ComboBox, "", $DDL_DRIVES, False)
_GUICtrlComboBox_EndUpdate($ComboBox)
Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE
GUIDelete()

Func CLOSEUP($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
MsgBox(0,"MSG","CLOSEUP")
EndFunc

Func DROPDOWN($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
MsgBox(0,"MSG","DROPDOWN")
EndFunc

Func SELCHANGE($CtrlHwnd,$ControlID,$NotficCode)
$WPARAM = GetwParam()
$LPARAM = GetlParam()
$HWND = GetParenthWnd()
MsgBox(0,"MSG","SELCHANGE")
EndFunc

Example3.au3

#include <GDIPlus.au3>
#Include "RegisterMsg.au3"
$hGUIA = GUICreate("My GUI A")
GUISetState()
_GDIPlus_Startup()
$hImageA = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\BKGNDA.bmp")
$BmpWidthA = _GDIPlus_ImageGetWidth($hImageA)
$BmpHeightA = _GDIPlus_ImageGetHeight($hImageA)
$hBmpImageA = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImageA)
_GDIPlus_ImageDispose($hImageA)
_GDIPlus_Shutdown()
GUIRegisterMsgEx($hGUIA,0x0014,"WM_ERASEBKGND_A") ; 0x0014 ==> WM_ERASEBKGND Msg
RedrawWindow($hGUIA,0,0,5)

$hGUIB = GUICreate("My GUI B")
GUISetState()
_GDIPlus_Startup()
$hImageB = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\BKGNDB.bmp")
$BmpWidthB = _GDIPlus_ImageGetWidth($hImageB)
$BmpHeightB = _GDIPlus_ImageGetHeight($hImageB)
$hBmpImageB = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImageB)
_GDIPlus_ImageDispose($hImageB)
_GDIPlus_Shutdown()
GUIRegisterMsgEx($hGUIB,0x0014,"WM_ERASEBKGND_B") ; 0x0014 ==> WM_ERASEBKGND Msg
RedrawWindow($hGUIB,0,0,5)


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


Func WM_ERASEBKGND_A($hWnd, $Msg, $wParam, $lParam)
if ($hBmpImageA) Then
Local $BGhWnd = WindowFromDC($wParam)
$Pos = WinGetClientSize($BGhWnd)
$hdc = CreateCompatibleDC($wParam)
$HGDIOBJ = SelectObject($hdc,$hBmpImageA)
StretchBlt($wParam,0,0,$Pos[0],$Pos[1],$hdc,0,0,$BmpWidthA,$BmpHeightA,0x00CC0020) ;0x00CC0020 ==> SRCCOPY
$HGDIOBJ = SelectObject($hdc,$HGDIOBJ)
Return True
EndIf
EndFunc

Func WM_ERASEBKGND_B($hWnd, $Msg, $wParam, $lParam)
if ($hBmpImageB) Then
Local $BGhWnd = WindowFromDC($wParam)
$Pos = WinGetClientSize($BGhWnd)
$hdc = CreateCompatibleDC($wParam)
$HGDIOBJ = SelectObject($hdc,$hBmpImageB)
StretchBlt($wParam,0,0,$Pos[0],$Pos[1],$hdc,0,0,$BmpWidthB,$BmpHeightB,0x00CC0020) ;0x00CC0020 ==> SRCCOPY
$HGDIOBJ = SelectObject($hdc,$HGDIOBJ)
Return True
EndIf
EndFunc

Func StretchBlt($hdcDest,$nXOriginDest,$nYOriginDest,$nWidthDest,$nHeightDest,$hdcSrc,$nXOriginSrc, _
$nYOriginSrc,$nWidthSrc,$nHeightSrc,$dwRop)
$Rt = DllCall("Gdi32.dll" ,"BOOL","StretchBlt","ptr",$hdcDest,"int",$nXOriginDest,"int",$nYOriginDest,"int",$nWidthDest , _
"int",$nHeightDest,"ptr",$hdcSrc,"int",$nXOriginSrc,"int",$nYOriginSrc,"int",$nWidthSrc,"int",$nHeightSrc,"DWORD",$dwRop)
if @error Or $Rt[0] = 0 Then Return SetError(1,0,0)
Return SetError(0,0,$Rt[0])
EndFunc

Func CreateCompatibleDC($hdc)
$HDC = DllCall("Gdi32.dll" ,"ptr","CreateCompatibleDC","ptr",$hdc)
if @error Or $HDC[0] = 0 Then Return SetError(1,0,0)
Return SetError(0,0,$HDC[0])
EndFunc

Func SelectObject($hdc,$hgdiobj)
$HGDIOBJ = DllCall("Gdi32.dll" ,"ptr","SelectObject","ptr",$hdc,"ptr",$hgdiobj)
if @error Or $HGDIOBJ[0] = 0 Then Return SetError(1,0,0)
Return SetError(0,0,$HGDIOBJ[0])
EndFunc

Func DeleteObject($hObject)
$Rt = DllCall("Gdi32.dll","BOOL","DeleteObjectW","ptr",$hObject)
if @error Or $Rt[0] = 0 Then Return SetError(1,0,0)
Return SetError(0,0,$Rt[0])
EndFunc

Func WindowFromDC($hDC)
$HWND = DllCall("User32.dll","ptr","WindowFromDC","ptr",$hdc)
if @error Or $HWND[0] = 0 Then Return SetError(1,0,0)
Return SetError(0,0,$HWND[0])
EndFunc

Func RedrawWindow($hWnd,$lprcUpdate,$hrgnUpdate,$flags)
$BOOL = DllCall("User32.dll","BOOL","RedrawWindow","ptr",$hWnd,"ptr",$lprcUpdate _
,"ptr",$hrgnUpdate,"UINT",$flags)
if @error Or $BOOL[0] = 0 Then Return SetError(1,0,0)
Return SetError(0,0,$BOOL[0])
EndFunc
Edited by wolf9228

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