[Mono-list] Help in dealing with Mono/.NET PInvoke issue
Dinis Cruz
dinis.cruz at googlemail.com
Fri Jan 8 19:50:13 EST 2010
Well, the main thing I need is to be able to host ASCX controls in a windows
GUI like environment since there are not a lot of dependencies in O2 with
the WinFormsAPI GUI.
For example, using MonoDevelop I was able to quickly create a form that was
able to successfully host one of O2 most commonly used modules:
[STAThread]
static void Main()
{
var form = new Form();
*var findingsViewer = new ascx_FindingsViewer();*
findingsViewer.Dock = DockStyle.Fill;
* **form.Controls.Add(findingsViewer);*
Application.Run(form);
return;
}
(see screenshot of it running here http://bit.ly/84oIqn (with MonoDevelop on
the background))
Basically what I need is:
- WinForm environment similar with VisualStudio or MonoDevelop
- Ability to create document and pads using the exiting ASCX
- Supports OSx, Linux and Windows
- StandAlone API (i.e. only the GUI in the referenced assembly)
If MonoDevelop will be hard to use (is it that hard to just get a
MonoDevelop raw GUI with no extra functionality) then are there other Mono
alternatives?
For example what do people use for when developing Mono apps? Do they only
have available the vanila WinForms API and circa-2005 MDI environments?
Thanks for the help
Dinis
2010/1/8 Miguel de Icaza <miguel at novell.com>
> Hello,
>
> > Any recomendations for a host GUI API?
> >
> > Is the one used in MonoDevelop easy to reuse?
>
> MonoDevelop is written using an entirely different API, the Gtk# API for
> GUI programming. I do not think that you would be able to reuse this.
>
> There is a slight chance that you could contact the authors of the Dock and
> have them remove the Win32 dependency, but chances are, it is not really
> easy to do.
>
> >
> > Dinis Cruz
> >
> > On 8 Jan 2010, at 21:36, Miguel de Icaza <miguel at novell.com> wrote:
> >
> > > Hello,
> > >
> > >> I've just checked-in the code that contains this project, so now all
> > >> relevant source code is on the O2Platform sourcecode
> > >
> > > You will likely need to find an alternative to this widget (the
> > > DockPanel) as the code has some 24 P/Invokes, and chances are that the
> > > code depends on those calls to provide the functionality.
> > >
> > >
> > >>
> > >>
> > >> Here is the list of the PInvokes that (I think) are causing the
> > >> problem
> > >> * Win32 Native
> > >> methods:
> http://code.google.com/p/o2platform/source/browse/trunk/SourceCode_3rdParty_Dlls/DockPanel/WinFormsUI/Docking/Win32/NativeMethods.cs
> > >> * Win32
> > >> Enums:
> http://code.google.com/p/o2platform/source/browse/trunk/SourceCode_3rdParty_Dlls/DockPanel/WinFormsUI/Docking/Win32/Enums.cs
> > >> To easily replicate this, please use this project
> > >> http://code.google.com/p/o2platform/source/browse/trunk/O2%20-%20All%
> > >> 20Active%20Projects/O2Core/O2/O2.sln since it only loads up that GUI
> > >> and when executed (OSx 10.6) throws this error message:
> > >>
> > >>
> > >> Unhandled Exception: System.DllNotFoundException: user32.dll
> > >> at (wrapper managed-to-native)
> > >> WeifenLuo.WinFormsUI.Docking.NativeMethods:SetWindowsHookEx
> > >> (WeifenLuo.WinFormsUI.Docking.Win32.
> > >> HookType,WeifenLuo.WinFormsUI.Docking.NativeMethods/
> > >> HookProc,intptr,int)
> > >> at WeifenLuo.WinFormsUI.Docking.DockPanel+FocusManagerImpl
> > >> +LocalWindowsHook.Install () [0x00021]
> > >> in /Users/.../Projects/SourceCode_3rdParty_Dlls/DockPanel/
> > >> WinFormsUI/Docking/DockPanel.FocusManager.cs:91
> > >> at WeifenLuo.WinFormsUI.Docking.DockPanel+FocusManagerImpl..ctor
> > >> (WeifenLuo.WinFormsUI.Docking.DockPanel dockPanel) [0x00087]
> > >> in /Users/.../Projects/SourceCode_3rdParty_Dlls/DockPanel/
> > >> WinFormsUI/Docking/DockPanel.FocusManager.cs:130
> > >> at (wrapper remoting-invoke-with-check)
> > >> WeifenLuo.WinFormsUI.Docking.DockPanel/FocusManagerImpl:.ctor
> > >> (WeifenLuo.WinFormsUI.Docking.DockPanel)
> > >> at WeifenLuo.WinFormsUI.Docking.DockPanel..ctor () [0x000c8]
> > >> in /Users/.../Projects/SourceCode_3rdParty_Dlls/DockPanel/
> > >> WinFormsUI/Docking/DockPanel.cs:44
> > >> at (wrapper remoting-invoke-with-check)
> > >> WeifenLuo.WinFormsUI.Docking.DockPanel:.ctor ()
> > >> at
> > >> O2.External.WinFormsUI.Forms.O2GuiWithDockPanel.InitializeComponent
> > >> ()
> > >> [0x00000] in /Users/.../Projects/O2 - All Active Projects/O2 Modules
> > >> Using 3rd Party
> > >> Dlls/O2_External_WinFormsUI/Forms/O2GuiWithDockPanel.Designer.cs:32
> > >> at O2.External.WinFormsUI.Forms.O2GuiWithDockPanel..ctor ()
> > >> [0x0000d] in /Users/.../Projects/O2 - All Active Projects/O2 Modules
> > >> Using 3rd Party
> > >> Dlls/O2_External_WinFormsUI/Forms/O2GuiWithDockPanel.cs:24
> > >> at (wrapper remoting-invoke-with-check)
> > >> O2.External.WinFormsUI.Forms.O2GuiWithDockPanel:.ctor ()
> > >> at
> > >> O2.
> > >> External.WinFormsUI.O2Environment.O2DockPanel.getO2GuiWithDockPanel
> > >> () [0x0000a] in /Users/.../Projects/O2 - All Active Projects/O2
> > >> Modules Using 3rd Party
> > >> Dlls/O2_External_WinFormsUI/O2Environment/O2DockPanel.cs:87
> > >> at
> > >> O2.
> > >>
> External.WinFormsUI.O2Environment.O2DockPanel.addControlToO2GuiWithDockPanelSync
> > >> (O2.External.WinFormsUI.O2Environment.O2DockContent controlToAdd)
> > >> [0x00020] in /Users/.../Projects/O2 - All Active Projects/O2
> > >> Modules Using 3rd Party Dlls/O2_External_WinFormsUI/O2Environment/
> > >> O2DockPanel.cs:99
> > >> at
> > >> O2.
> > >>
> External.WinFormsUI.O2Environment.O2DockPanel.addControlsToFormAndStartIt
> > >> (IEnumerable`1 controlsToAdd) [0x00013] in /Users/.../Projects/O2 -
> > >> All Active Projects/O2 Modules Using 3rd Party Dlls/
> > >> O2_External_WinFormsUI/O2Environment/O2DockPanel.cs:159
> > >> at
> > >> O2.
> > >>
> External.WinFormsUI.O2Environment.O2DockPanel.openO2DockContentInNewDockPanel
> > >> (System.Collections.Generic.List`1 controlsToLoad) [0x00010] in /
> > >> Users/.../Projects/O2 - All Active Projects/O2 Modules Using 3rd
> > >> Party Dlls/O2_External_WinFormsUI/O2Environment/O2DockPanel.cs:76
> > >> at O2.External.WinFormsUI.O2Environment.O2DockPanel..ctor ()
> > >> [0x00006] in /Users/.../Projects/O2 - All Active Projects/O2 Modules
> > >> Using 3rd Party
> > >> Dlls/O2_External_WinFormsUI/O2Environment/O2DockPanel.cs:20
> > >> at O2.External.WinFormsUI.Forms.O2AscxGUI.<launch>m__8 () [0x00000]
> > >> in /Users/.../Projects/O2 - All Active Projects/O2 Modules Using 3rd
> > >> Party Dlls/O2_External_WinFormsUI/Forms/O2AscxGUI.cs:43
> > >> at O2.DotNetWrappers.DotNet.O2Thread
> > >> +<staThread>c__AnonStorey9.<>m__B () [0x00000]
> > >> in /Users/.../Projects/O2 - All Active
> > >> Projects/O2Core/O2_DotNetWrappers/DotNet/O2Thread.cs:34
> > >> The application was terminated by a signal: SIGHUP
> > >>
> > >>
> > >>
> > >>
> > >> Thanks
> > >>
> > >>
> > >> Dinis Cruz
> > >>
> > >> 2010/1/4 Chris Howie <cdhowie at gmail.com>
> > >>> I just wrote a blog post about the problem I currently have
> > >>>
> > >> (see
> http://diniscruz.blogspot.com/2010/01/o2-on-mono-monodevelop-and-osx.html
> > >> ),
> > >>> which seems to be a variation of one you have seen several
> > >> times in the
> > >>> past: "Unhandled Exception: System.DllNotFoundException:
> > >> user32.dll"
> > >>
> > >>
> > >> This means that your platform is invoking one of Windows'
> > >> native
> > >> libraries. You need to figure out how to perform the
> > >> equivalent call
> > >> on Linux or OS X. Note that there may be a framework method
> > >> for what
> > >> you are trying to do, and you should use it if that is the
> > >> case.
> > >>
> > >> Without knowing which P/Invoke call you are making it's not
> > >> possible
> > >> to tell if this is fixable.
> > >>
> > >> --
> > >> Chris Howie
> > >> http://www.chrishowie.com
> > >> http://en.wikipedia.org/wiki/User:Crazycomputers
> > >>
> > >>
> > >> _______________________________________________
> > >> Mono-list maillist - Mono-list at lists.ximian.com
> > >> http://lists.ximian.com/mailman/listinfo/mono-list
> > >
>
>
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