RE: someone please answer, clearing text in a GtkTextView!

["Tom Liu" <tom liu flextrade com>]

What I did is 
	gtk_text_buffer_set_text (pbuffer, "", -1);

> -----Original Message-----
> From: gtk-list-admin gnome org [mailto:gtk-list-admin gnome org] On
Behalf
> Of Carl B. Constantine
> Sent: Tuesday, December 30, 2003 12:43 PM
> To: gtk-list gnome org
> Subject: someone please answer, clearing text in a GtkTextView!
> 
> 
> I have a GtkTextView in a window used for data entry into a database.
> The text typed in the view gets put in the database no problem, but
once
> the data entry has occurred, I want to clear the view so that the next
> screen of data can be input.
> 
> Looking through the API, there isn't a "set text" function for this
view
> (per se) like the GtkEntry widgets, except in the GtkTextBuffer. The
> other funcition in that widget is gtk_text_buffer_delete, which I
called
> but I'm getting an error.
> 
> Here's the code I was using to get the buffer, then delete it:
> 
> /* the GtkTextView in this window requires a bit of extra work
>      to get the text value stored in it.
>   */
> 
>   specialView = lookup_widget(customers, "cust_instructions");
>   specialBuffer =
gtk_text_view_get_buffer(GTK_TEXT_VIEW(specialView));
>   gtk_text_buffer_get_bounds(specialBuffer, &start, &end);
>   gtk_text_buffer_delete(specialBuffer, &start, &end);
> 
> 
> But here's the error I'm getting when I try to do that:
> 
> (dispatcher:1523): Gtk-WARNING **: Invalid text buffer iterator:
either
> the iter
> ator is uninitialized, or the characters/pixbufs/widgets in the buffer
> have been
>  modified since the iterator was created.
> You must use marks, character numbers, or line numbers to preserve a
> position ac
> ross buffer modifications.
> You can apply tags and insert marks without invalidating your
iterators,
> but any mutation that affects 'indexable' buffer contents (contents
that
> can be
> referred to by character offset)
> will invalidate all outstanding iterators
> 
> (dispatcher:1523): Gtk-CRITICAL **: file gtktextbuffer.c: line 1297
> (gtk_text_bu
> ffer_delete): assertion `gtk_text_iter_get_buffer (start) == buffer'
> failed
> 
> Then it segfaults.
> 
> So I tried the set text call like this:
> 
> gtk_text_buffer_set_text(specialBuffer,"", 0);
> 
> but that makes my app segfault as well.
> 
> Can anyone help?
> 
> --
>  .''`.      Carl B. Constantine
> : :' :     duckwing duckwing ca
> `. `'    GnuPG: 135F FC30 7A02 B0EB 61DB  34E3 3AF1 DC6C 9F7A 3FF8
>   `-  Debian GNU/Linux -- The power of freedom
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because
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