Re: gtk-app-devel-list digest, Vol 1 #1950 - 2 msgs

["Aman Hardikar Muppidi" <cybergeek2k rediffmail com>]

Hi,

Am doing a project in c with gtk.
can anyone there help me on

how to load a file into gtk window.
like a html file on the disk into a window tt we can get by clicking a button ?
and is there an way to load time changing ( adding ) files like log files to load into a gtk window or using 
a c program ???

and how can we add an url link to a button in gtk ?

also can anyone tell me which book i need to follow to do gtk programming ?

Aman Hardikar M
cybergeek2k rediffmail com


On Sun, 21 Mar 2004 gtk-app-devel-list-request gnome org wrote :
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> than "Re: Contents of gtk-app-devel-list digest..."
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> Today's Topics:
>
>    1. GIOChannels, yet again (Zoran Rilak)
>    2. label width (Paul Pogonyshev)
>
> --__--__--
>
> Message: 1
> Subject: GIOChannels, yet again
> From: Zoran Rilak <bruce tesla rcub bg ac yu>
> Reply-To: bruce tesla rcub bg ac yu
> To: GTK+ application development list <gtk-app-devel-list gnome org>
> Date: Sun, 21 Mar 2004 09:19:42 +0100
>
> Greetings developers,
>
> I'm having trouble with GIOChannels (again).  At some point in my code
> the channel gets open:
>
> /* code */
> void channel_open (...)
> {
>   mIOch = g_io_channel_unix_new (filedes);
>   g_io_channel_set_encoding (mIOch, NULL, NULL);
>   g_io_channel_set_buffered (mIOch, FALSE);
>   g_io_channel_set_close_on_unref (mIOch, TRUE);
>
>   g_io_add_watch (mIOch,
>                   G_IO_IN|G_IO_PRI,
>                   modem_GIOHandler,
>                   <user_data>);
> }
> /* */
>
> Later, the same channel is closed:
>
> /* code */
> void
> channel_close (...)
> {
>   g_io_channel_shutdown (mIOch, FALSE, NULL);
>   g_io_channel_unref (mIOch);
>   mIOch = NULL;
> }
> /* */
>
> Everything works O.K. for the first time channel gets open.  But after
> closing it, at some point I need to reopen the channel, do some more
> work, then close it again.  When I open the channel and try to read some
> bytes, I get the following error
>
> /* stderr */
> GLib-CRITICAL **: file giochannel.c: line 1748
> (g_io_channel_read_chars): assertion `channel->is_readable' failed
> /* */
>
> what's baffling me is the fact that just one line above the offending
> g_io_channel_read_chars() I add a g_io_channel_get_flags() to refresh
> the cache and then check if it's readable (it is), but the reading
> function keeps screaming about channel not being readable.  What could
> be the cause of this?
>
> (I read from a character special device which is nicely opened and
> closed when channel gets open and closed, respectively.)
>
> Best
> Zoran
>
>
>
> --__--__--
>
> Message: 2
> From: Paul Pogonyshev <pogonyshev gmx net>
> To: gtk-app-devel-list gnome org
> Subject: label width
> Date: Sun, 21 Mar 2004 17:55:48 +0200
>
> Is there any good way (i.e. one that does not involve
> hardwired pixel values) of specifying width of a line-
> wrapping GtkLabel?  Something like "it should be
> approximately 45 characters wide".
>
> Paul
>
>
> --__--__--
>
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> End of gtk-app-devel-list Digest