id summary reporter owner description type status milestone component version severity resolution keywords cc 4092 Regression in 3.3.18.0: GuiStatusBar.au3 rejects WinForms StatusBar HWND with class WindowsForms10.msctls_statusbar32.app* jase.thew+autoit@… "After upgrading from AutoIt 3.3.16.1 to 3.3.18.0, GuiStatusBar.au3 functions fail against a classic .NET WinForms StatusBar because the control’s window class is reported as a WinForms wrapper string (e.g. WindowsForms10.msctls_statusbar32.app5) instead of exactly msctls_statusbar32. GuiStatusBar.au3 uses _WinAPI_IsClassName() for handle validation; this is a direct class-name match check against the class name retrieved from the HWND. __Regression window__ Last known good: 3.3.16.1 First known bad: 3.3.18.0 __Environment__ OS: Windows 11/24H2 AutoIt: 3.3.18.0 AutoIt build: x64 Target: legacy .NET WinForms app using classic StatusBar (not StatusStrip) __Steps to reproduce__ Launch a legacy WinForms application containing a classic StatusBar. Get the StatusBar control handle (HWND). Call _GUICtrlStatusBar_GetCount($hStatus) __Minimal repro script__ {{{ #include #include Local $hWnd = WinWaitActive(""[TITLE:Your WinForms App Title]"") Local $hStatus = ControlGetHandle($hWnd, """", ""[CLASS:WindowsForms10.msctls_statusbar32.app5]"") ; adjust selector as needed ConsoleWrite(""HWND: "" & $hStatus & @CRLF) ConsoleWrite(""ClassName: "" & _WinAPI_GetClassName($hStatus) & @CRLF) Local $iCount = _GUICtrlStatusBar_GetCount($hStatus) ConsoleWrite(""Count='"" & $iCount & ""' @error="" & @error & "" @extended="" & @extended & @CRLF) }}} __Pre-regression result (3.3.16.1)__ {{{ HWND: 0x0000000000190B50 ClassName: WindowsForms10.msctls_statusbar32.app5 Count='6' @error=0 @extended=0 }}} __Expected result__ _GUICtrlStatusBar_GetCount() returns the number of parts in the statusbar. __Actual result (3.3.18.0)__ {{{ HWND: 0x0000000000190B50 ClassName: WindowsForms10.msctls_statusbar32.app5 Count='0' @error=2 @extended=0 }}} __Notes__ WinForms commonly exposes hosted controls using class strings like WindowsForms10..app..., and the suffix can vary across builds/machines." Bug new Standard UDFs 3.3.18.0 None winforms statusbar guistatusbar classname