Re: GTK Drag'n'Drop problem

[Syed Akbar <syed_akbar gmx net>]

Am 23.02.2014 09:59, schrieb John Emmas:
> On 22/02/2014 22:30, Syed Akbar wrote:
> > I am afraid this is might not be the right place to ask: there is a 
> > dnd problem with GTK + Win 7/8 + Kaspersky or TuneUp Utilities or 
> > Camtasia. I've tried to debug the problem, but I am not very familiar 
> > with C/C++ and Win32 programming.
> >
> > I just detected that in "gtkdnd.c/gtk_drag_button_release_cb()" the 
> > value of "gdk_drag_context_get_selected_action (info->context)" 
> > returns 0. Also "_gtk_drag_dest_handle_event()" is never called.  I 
> > tried to trace the value of context->action but couldn't figure out 
> > where exactly the initial value of context is assigned.
> >
> > Any idea how to proceed?
>
> What version of GTK+ are you using?  For the Windows platform, DND was 
> quite seriously broken between v2.20 and v2.24 but the problem got 
> fixed around Sept 2011 (both for gtk+2 and gtk+3 AFAIK).

As far as I could find out the problem appears with all GTK+ versions 
(including the latest sources). Also it occurs with the latest GIMP 
version and other GTK+ applications.

> Also, you mentioned that your problem exists when using Kaspersky, 
> Tuneup Utilities or Camtasia.  Does the problem go away if you run 
> your app on a system that doesn't use those products?

The problem immediately disappears when the application (like Camtasia 
or Kaspersky) is closed (only TuneUp Utilities requires complete 
uninstallation). Then GTK+ application DND works as usual. No 
application restart is required. So fortunately I am able to provoke the 
error purposefully as desired (just starting and closing Kaspersky). I 
then decided to try to solve it on my own although I am no expert in 
C/GTK/Win32 development.

> John
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