> -----Original Message-----
> From: Maser, Dan [mailto an.Maser
 inin.com]
> Sent: jueves, 09 de agosto de 2007 15:15
> To: Rolf Bjarne Kvinge; mono-winforms-listlists.ximian.com
> Subject: RE: [Mono-winforms-list] Handle being created
when I don't
> expect
>
>
> Sure. I'm using the latest mono I built from the SVN
source on
> 08/07/2007. The call stack with file/line info is
really wide, so I've
> attached it as a text file to this message.
>
When setting MdiParent the handle is being *re*created, not
created, and
this is matching MS' behavior.
To know when the handle was created in the first place I'd
need another
stack trace 
Rolf
> Thanks!
>
> -----Original Message-----
> From: Rolf Bjarne Kvinge [mailto:rolflistsya.com]
> Sent: Thursday, August 09, 2007 2:15 AM
> To: Maser, Dan; mono-winforms-listlists.ximian.com
> Subject: RE: [Mono-winforms-list] Handle being created
when I don't
> expect
>
>
>
> >From: mono-winforms-list-bounceslists.ximian.com
> [mailto:mono-winforms-list-bounceslists.ximian.com] On Behalf Of
> Maser, Dan
> >Sent: miércoles, 08 de agosto de 2007 23:49
> >To: Maser, Dan; mono-winforms-listlists.ximian.com
> >Subject: Re: [Mono-winforms-list] Handle being
created when I don't
> >expect
> >
> > Sorry, that got sent too early. Here's more of
the call stack this
> time.
>
>
> Could you execute with "mono --debug app.exe"
so that you get line
> numbers as well? And knowing which version of Winforms
you're using
> would also help
>
>
> Rolf
>
> >_____________________________________________
> >From: Maser, Dan
> >Sent: Wednesday, August 08, 2007 4:39 PM
> >To: 'mono-winforms-listlists.ximian.com'
> >Subject: Handle being created when I don't
expect
>
> > I've got a situation with MDI forms where the
behavior is different
> >on MS
> vs mono, but it's proving difficult to get a simple
test project that
> >reproduces it. The problem is that in my app
setting the
> >Form.MdiParent is
> causing that Form's handle to be created in mono when
it doesn't on
> >MS.NET. And it doesn't happen for simple test
programs on mono
> >either;
> with simple test programs setting the MdiParent
property doesn't cause
> the
> >handle to be created. I think it must be something
about my real
> >project
> that causes this, but the program is so large it's
difficult to tell
> what that >might be. Here's a partial call stack
from the
> Form.HandleCreated event. Does this info give enough
info to someone
> to make some guesses about what >could cause the
MdiParent property to
> trigger the HandleCreated in some projects but not in
others?
> > Thanks in advance for any ideas!
> > Partial call stack:
> >at MyChildForm.on_HandleCreated(System.Object
sender, System.EventArgs
> >e) at
System.Windows.Forms.Control.OnHandleCreated(System.EventArg
s e)
> >at
System.Windows.Forms.Form.OnHandleCreated(System.EventArgs
e) at
> >System.Windows.Forms.Control.WmCreate(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.OnMessa
ge(Message
> >ByRef
> m)
> >at
System.Windows.Forms.Control+ControlNativeWindow.WndProc(Mes
sage
> >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
msg,
> >IntPtr
> wParam, IntPtr lParam)
> >at
>
System.Windows.Forms.XplatUIX11.CreateWindow(System.Windows.
Forms.Creat
> ePara
> ms cp)
> >at
>
System.Windows.Forms.XplatUI.CreateWindow(System.Windows.For
ms.CreatePa
> rams
> cp)
> >at
>
System.Windows.Forms.NativeWindow.CreateHandle(System.Window
s.Forms.Cre
> atePa
> rams create_params)
> >at System.Windows.Forms.Control.CreateHandle()
> >at System.Windows.Forms.Form.CreateHandle()
> >at System.Windows.Forms.Control.WmDestroy(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.WmDestroy(Message ByRef
m) at
> >System.Windows.Forms.Form.WndProc(Message ByRef m)
at
>
>System.Windows.Forms.Control+ControlWindowTarget.OnMessa
ge(Message
> >ByRef
> m)
> >at
System.Windows.Forms.Control+ControlNativeWindow.WndProc(Mes
sage
> >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
msg,
> >IntPtr
> wParam, IntPtr lParam)
> >at
System.Windows.Forms.XplatUIX11.DestroyWindow(IntPtr handle)
at
> >System.Windows.Forms.XplatUI.DestroyWindow(IntPtr
handle) at
> >System.Windows.Forms.NativeWindow.DestroyWindow()
> >at System.Windows.Forms.Control.DestroyHandle()
> >at System.Windows.Forms.Control.RecreateHandle()
> >at
System.Windows.Forms.Form.set_MdiParent(System.Windows.Forms
.Form
> >value)
>
> >....
> >There's more, but this seems like the relevant
part.
> >
> >
>
>
>
>
>
>
>
>
>
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