[Mono-bugs] [Bug 342932] New: X11 error with Panel and AutoScroll

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=342932

           Summary: X11 error with Panel and AutoScroll
           Product: Mono: Class Libraries
           Version: 1.2.6
          Platform: x86-64
        OS/Version: SLES 10
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at ximian.com
        ReportedBy: carsten.sponsel at astrum-it.de
         QAContact: mono-bugs at ximian.com
          Found By: ---


Created an attachment (id=184015)
 --> (https://bugzilla.novell.com/attachment.cgi?id=184015)
TestApplication that shows the error

Description of Problem:

On startup my Application writes an X11 error to the Console but it does not
crash.


Steps to reproduce the problem:
1. Compile the Source file i attached with
gmcs -warn:4 -optimize+ -t:winexe -r:System.Windows.Forms -r:System.Drawing   
-out:TestApp.exe TestApp.cs
2. Start TestApp.exe from a console
3. See error output on the Console


Actual Results:

X11 Error encountered:
  Error: BadMatch (invalid parameter attributes)
  Request:     12 (0)
  Resource ID: 0x4C0001A
  Serial:      283
  Hwnd:        Hwnd, Mapped:False ClientWindow:0x4C0001B,
WholeWindow:0x4C0001A, Zombie=False, Parent:[Hwnd, Mapped:False
ClientWindow:0x4C00015, WholeWindow:0x4C00014, Zombie=False, Parent:[Hwnd,
Mapped:False ClientWindow:0x4C00013, WholeWindow:0x4C00012, Zombie=False,
Parent:[<null>]]]
  Control:     System.Windows.Forms.ImplicitHScrollBar, Minimum: 0, Maximum:
569, Value: 0   at System.Environment.get_StackTrace()
   at System.Windows.Forms.XplatUIX11.HandleError(IntPtr display, XErrorEvent
ByRef error_event)
   at System.Windows.Forms.XplatUIX11.HandleError(IntPtr , XErrorEvent ByRef )
   at System.Windows.Forms.XplatUIX11.XGetWMNormalHints(IntPtr , IntPtr ,
XSizeHints ByRef , IntPtr ByRef )
   at System.Windows.Forms.XplatUIX11.XGetWMNormalHints(IntPtr , IntPtr ,
XSizeHints ByRef , IntPtr ByRef )
   at System.Windows.Forms.XplatUIX11.SetWindowMinMax(IntPtr handle, Rectangle
maximized, Size min, Size max, System.Windows.Forms.CreateParams cp)
   at System.Windows.Forms.XplatUIX11.SetWMStyles(System.Windows.Forms.Hwnd
hwnd, System.Windows.Forms.CreateParams cp)
   at System.Windows.Forms.XplatUIX11.SetWindowStyle(IntPtr handle,
System.Windows.Forms.CreateParams cp)
   at System.Windows.Forms.XplatUI.SetWindowStyle(IntPtr handle,
System.Windows.Forms.CreateParams cp)
   at System.Windows.Forms.Control.UpdateStyles()
   at System.Windows.Forms.Control.CreateHandle()
   at System.Windows.Forms.TextBoxBase.CreateHandle()
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message ByRef m)
   at System.Windows.Forms.Control.WndProc(Message ByRef m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message ByRef m)
   at System.Windows.Forms.Control+ControlWindowTarget.OnMessage(Message ByRef
m)
   at System.Windows.Forms.Control+ControlNativeWindow.WndProc(Message ByRef m)
   at System.Windows.Forms.NativeWindow.WndProc(IntPtr hWnd, Msg msg, IntPtr
wParam, IntPtr lParam)
   at System.Windows.Forms.XplatUIX11.SendMessage(IntPtr hwnd, Msg message,
IntPtr wParam, IntPtr lParam)
   at
System.Windows.Forms.XplatUIX11.CreateWindow(System.Windows.Forms.CreateParams
cp)
   at
System.Windows.Forms.XplatUI.CreateWindow(System.Windows.Forms.CreateParams cp)
   at
System.Windows.Forms.NativeWindow.CreateHandle(System.Windows.Forms.CreateParams
create_params)
   at System.Windows.Forms.Control.CreateHandle()
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message ByRef m)
   at System.Windows.Forms.Control.WndProc(Message ByRef m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message ByRef m)
   at System.Windows.Forms.ContainerControl.WndProc(Message ByRef m)
   at System.Windows.Forms.Form.WndProc(Message ByRef m)
   at System.Windows.Forms.Control+ControlWindowTarget.OnMessage(Message ByRef
m)
   at System.Windows.Forms.Control+ControlNativeWindow.WndProc(Message ByRef m)
   at System.Windows.Forms.NativeWindow.WndProc(IntPtr hWnd, Msg msg, IntPtr
wParam, IntPtr lParam)
   at System.Windows.Forms.XplatUIX11.SendMessage(IntPtr hwnd, Msg message,
IntPtr wParam, IntPtr lParam)
   at System.Windows.Forms.XplatUIX11.MapWindow(System.Windows.Forms.Hwnd hwnd,
WindowType windows)
   at
System.Windows.Forms.XplatUIX11.CreateWindow(System.Windows.Forms.CreateParams
cp)
   at
System.Windows.Forms.XplatUI.CreateWindow(System.Windows.Forms.CreateParams cp)
   at
System.Windows.Forms.NativeWindow.CreateHandle(System.Windows.Forms.CreateParams
create_params)
   at System.Windows.Forms.Control.CreateHandle()
   at System.Windows.Forms.Form.CreateHandle()
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
   at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
   at System.Windows.Forms.Control.set_Visible(Boolean value)
   at System.Windows.Forms.Application.RunLoop(Boolean Modal,
System.Windows.Forms.ApplicationContext context)
   at
System.Windows.Forms.Application.Run(System.Windows.Forms.ApplicationContext
context)
   at System.Windows.Forms.Application.Run(System.Windows.Forms.Form mainForm)
   at TestApp.TestApp.Main()


Expected Results:
Not the above output


How often does this happen? 
Everytime i start my application.


Additional Information:
I suppose it has something to do with AutoScroll and a Panel that has Controls
inside and use a Resize-Handler.

My X11 version is 6.9.0, KDE version is 3.5


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