[pygtk] Drag from GTK+ and drop on MS Windows problem

[nseigne]

After a post to the gtk mailing list, it just seems gtk inter application dnd
isn't implemented on win32...


nseigne wrote:
> 
> Hi all,
> 
> I’m writing a small application that builds a file and I want the user to
> be able to drag it from the main application window into his file explorer
> or any other location just like it was the real file (in my case, the idea
> would be to drag it on an email client window to post an attachment).
> I got the drop on linux to work fine, but the same code on MS Windows
> doesn’t get the drag_data_get signal…
> 
> Here is a simpler example I’ve built to make the point with text/plain (my
> original app uses text/uri-list) : it pops up 2 windows. 
> -	You can drag from the “source” window onto the “destination” window :
> the window will display the time the drag_data_get was called.
> -	You can drag from the “source” window to the file explorer or desktop :
> it should create a file with a default name containing the same string
> -	You can drag from the “source” window to a text editor window : it
> should insert the same string into the text at the cursor location
> 
> #!/usr/bin/env python
> 
> import pygtk
> pygtk.require('2.0')
> import gtk
> import time
> 
> def data_received(wid, c, x, y, s, t, time):
> 	print 'data_received'
> 	l.set_text(s.get_text())
> 
> w = gtk.Window()
> w.set_title('Destination')
> w.set_size_request(200, 150)
> w.drag_dest_set(gtk.DEST_DEFAULT_MOTION |
> 		                  gtk.DEST_DEFAULT_HIGHLIGHT |
> 		                  gtk.DEST_DEFAULT_DROP,
> 		                  [( "text/plain", 0, 80 )], gtk.gdk.ACTION_COPY)
> w.connect("drag_data_received", data_received)
> w.connect('destroy', lambda w: gtk.main_quit())
> l = gtk.Label()
> w.add(l)
> w.show_all()
> 
> def data_get(wid, c, s, t, te):
> 	print 'data_get'
> 	now = time.time()
> 	s.set_text('data_get at %s' % time.ctime(now))
> 
> w2 = gtk.Window()
> w2.set_title('Source')
> w2.set_size_request(200, 150)
> w2.drag_source_set(gtk.gdk.BUTTON1_MASK, [( "text/plain", 0, 80
> )],gtk.gdk.ACTION_COPY)
> w2.connect("drag_data_get", data_get)	
> w2.connect('destroy', lambda w: gtk.main_quit())	
> w2.show_all()			
> 
> print 'go !'
> 
> gtk.main()
> 
> On linux, everything goes as described.
> On windows, the data_get signal is never received if I try to drop outside
> the “destination” window (file explorer or desktop, not even text editor)
> 
> I have got something wring with the targets (tex/plain, text/uri-list) or
> is this a limitation of gtk drag and drop on windows?
> Thanks for your help.
> 
> I’m running :
> -	Linux Ubuntu Feisty 7.04
> o	Gnome 2.14.3
> o	Python 2.5.1
> o	Gtk 2.12.0
> o	Pygtk 2.12.0
> -	Windows XP
> o	Python 2.5.1
> o	Gtk 2.12.9
> o	Pygtk 2.12.9
> 
> 

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