Re: Having problems with gtk_editable_copy_clipboard

[Owen Taylor <otaylor redhat com>]

"Bradley F. Hartman" <hartman mcci-arl-va com> writes:

> Hello,
> 
> I am having problems with the function, gtk_editable_copy_clipboard, on the
> Solaris 2.6 platform.  I created a very simple program, which creates a
> GtkEntry (for text input), as shown below:
> 
>    entry = gtk_entry_new ();
>    gtk_entry_set_max_length (GTK_ENTRY (entry), 50);
> 
> I then attached a signal handler, copy_clipboard(), to the event, 
> "copy-clipboard," as shown below:
> 
>    g_signal_connect (G_OBJECT (entry), "copy-clipboard",
>                      G_CALLBACK (copy_clipboard),
>                      entry);
> 
> My signal handler, copy_clipboard(), follows:
> 
>    void copy_clipboard( GtkWidget *widget,
>                         GtkWidget *entry)
>    {
>       static int   count        = 0;
>       const  gchar *entry_text;
>    
>       entry_text = gtk_entry_get_text (GTK_ENTRY (widget));
>       printf("copy_clipboard:  Entry contents: %s\n", entry_text);
>    
>       g_print( "Copy Clipboard executing for the %d time.\n", count++ );
>       gtk_editable_copy_clipboard( GTK_EDITABLE( widget ) );
>    }
> 
> When I highlight text in the text entry, right click and select "Copy", the
> following is displayed on standard out before the program dumps core:
> 
>    copy_clipboard:  Entry contents: hello world
>    Copy Clipboard executing for the 0 time.
>    copy_clipboard:  Entry contents: hello world
>    Copy Clipboard executing for the 1 time.
> 
>     . . .
> 
>    copy_clipboard:  Entry contents: hello world
>    Copy Clipboard executing for the 5395 time.
>    Segmentation Fault (core dumped)
> 
> 
> Note that it seems as though the "copy-clipboard" event is generated
> 5395 times (because the function is called 5395 times for one "Copy."
> Am I doing something wrong or is there a bug in GTK?

What are you trying to achieve?

The copy_clipboard signal for GtkEntry is an "action signal". It's sole
point is to be attached to a keybinding. When you press <control>c in a 
entry, ::copy-clipboard is emitted, and the default handler (built in
to GtkEntry) copies the selected text to the clipboard.

Regards,
                                        Owen