[Mono-winforms-list] Clipboard.SetDataObject() doing nothing

[Christoph Teuber]

doing that would be great. I did try to copy other data to clipboard
because I'm working on an small app syncing two clipboards over the LAN.
So I try to copy Windows clipboard contents on Linux. For my own
personal needs, it should work across platform boundaries, but text is
enough. Which works. But other people may have other needs, so I try to
support different formats.

What confuses me is, that clipboard handling within X11 seems to be
quite complicated. For other formats than text, most applications I
tried seem to use their one clipboard. Cutting in Gimp doesn't paste in
OpenOffice Draw and vice versa. So maybe supporting other formats
wouldn't be that usefull, but having the capability of copy and paste
other formats between mono applications would be a good start.

Does anybody of you know a good document explaining the situation?

cht


Carlos Alberto Cortez wrote:
> I already did some refactoring code to handle formats other than text,
> we only need to copy the information just as other x11 applications do
> that :-)
>
> But anyway, feel free a magicalto send (me) those notes as well :-)
>
> Carlos.
>
> 2009/5/24 Ivan N. Zlatev <contact at i-nz.net <mailto:contact at i-nz.net>>
>
>     Hey,
>
>     There is already a bug for this:
>     https://bugzilla.novell.com/show_bug.cgi?id=357642
>
>     Basically we don't support IDataObject and custom data (clipboard)
>     formats and just hand-check for text and handle that in a magical way.
>     The best way (imho) to fix this is to have a IDataObject centric
>     clipboard implementation. I have some notes if someone is interested.
>
>
>     On Sun, May 24, 2009 at 4:33 PM, Carlos Alberto Cortez
>     <calberto.cortez at gmail.com <mailto:calberto.cortez at gmail.com>> wrote:
>     > This issue has nothing to see with that Changelog entry.
>     >
>     > Basically we have never supported copying/pasting other than
>     text/rtf text.
>     > So feel free to open a bug report for it :-)
>     >
>     > Thanks!
>     > Carlos.
>     >
>     >
>     > 2009/5/24 Christoph Teuber <christoph.teuber at gmx.li
>     <mailto:christoph.teuber at gmx.li>>
>     >>
>     >> Hello,
>     >>
>     >> thanks for your fast answer.
>     >>
>     >> You were right, there were several changes, but nothing seems to be
>     >> connected with my SetDataObject() problem. But I found this
>     statement:
>     >>
>     >> 2007-03-18 Jackson Harper <jackson at ximian.com
>     <mailto:jackson at ximian.com>>
>     >>
>     >> * TextBoxBase.cs: Remove image pasting code for now. There is no
>     >> way to get an image on the clipboard right now anyways.
>     >>
>     >> This ist from 2007, so it may be out of date, but does it mean,
>     that
>     >> copying images to the clipboard doesn't work at all? I wonder,
>     because
>     >>
>     >> Clipboard.SetImage( im );
>     >>
>     >> or
>     >>
>     >> Clipboard.SetObjectData( im );
>     >>
>     >> doesn't do anything either. (im is an image loaded as posted
>     before). In
>     >> contrary,
>     >>
>     >> Clipboard.SetObjectData("this is a test");
>     >>
>     >> does work.
>     >>
>     >> Greetings
>     >> cht
>     >>
>     >>
>     >>
>     >> Stifu wrote:
>     >> > I know there've been clipboard fixes after 2.4, so you could
>     check out
>     >> > SVN
>     >> > (or bugzilla).
>     >> >
>     >> >
>     >> > cht wrote:
>     >> >
>     >> >> Hello,
>     >> >>
>     >> >> I'm trying to do some clipboard stuff under Mono right now,
>     and I have
>     >> >> the
>     >> >> problem, that Windows.Forms.Clipboard.SetDataObject()
>     doesn't seem to
>     >> >> do
>     >> >> anything if a DataObject will be passed.
>     >> >>
>     >> >> I do have the following two pieces of code, which both run
>     under .NET
>     >> >> 2.0,
>     >> >> but running under mono (2.0.1, Ubuntu 9.04) leaves the clipboard
>     >> >> completely unchanged.
>     >> >>
>     >> >> private void testButton_Click(object sender, EventArgs e)
>     >> >>         {
>     >> >>             Image im = (Image)Bitmap.FromFile("test.jpg");
>     >> >>             DataObject dataObj = new DataObject();
>     >> >>             dataObj.SetData(im.GetType().ToString(), im);
>     >> >>             Clipboard.SetDataObject(dataObj, true);
>     >> >>
>     >> >>         }
>     >> >>
>     >> >> private void testTextButton_Click(object sender, EventArgs e)
>     >> >>         {
>     >> >>             DataObject dataObj = new DataObject();
>     >> >>             string format = "System.String";
>     >> >>             dataObj.SetData(format, "this is a test");
>     >> >>             Clipboard.SetDataObject(dataObj, false);
>     >> >>         }
>     >> >>
>     >> >>
>     >> >> I compile using VS 2008.
>     >> >> As Clipboard.cs seems to bee unchanged since 2.0.1, I didn't try
>     >> >> installing Mono 2.4. But I would like to stay compatible to
>     2.0.1
>     >> >> anyway,
>     >> >> so I hope I'm doing something wrong.
>     >> >>
>     >> >> Anybody any idea, why this is the case?
>     >> >>
>     >> >> Thanks in advance
>     >> >> cht
>     >> >>
>     >> >>
>     >> >>
>     >> >
>     >> >
>     >>
>     >> _______________________________________________
>     >> Mono-winforms-list maillist  -
>      Mono-winforms-list at lists.ximian.com
>     <mailto:Mono-winforms-list at lists.ximian.com>
>     >> http://lists.ximian.com/mailman/listinfo/mono-winforms-list
>     >
>     >
>     > _______________________________________________
>     > Mono-winforms-list maillist  -
>      Mono-winforms-list at lists.ximian.com
>     <mailto:Mono-winforms-list at lists.ximian.com>
>     > http://lists.ximian.com/mailman/listinfo/mono-winforms-list
>     >
>     >
>
>
>
>     --
>     Kind Regards,
>     Ivan N. Zlatev
>
>