hi, thanks for replying
after changing, segmentation fault still follows.
there's an additional error saying
warning: passing arg 2 of `g_timeout_add' from
incompatible pointer type
in this case arg 2 is static gint real_draw (
GtkWidget * )
i figure the error occurred because it shd be
static gint real_draw ( gpointer )
but still upon clicking the button,
program terminates with segmentation error. what else
could be the problem? thanks again for your help
--- Olexiy Avramchenko <[EMAIL PROTECTED]> wrote:
> Aaron Yang wrote:
> > > void draw_button_clicked ( void )
> > {
> 1. You're passing NULL as a parameter for timeout's
> callback.
> > g_timeout_add (100, real_draw, NULL);
> > }
> 2. window parameter is NULL (see above).
> > static gint real_draw ( gpointer window )
> > {
> > GtkWidget *widget;
> 3. Variable widget is undefined, it can hold any
> pointer.
> > static int i=0;
> >
> 4. Here you're passing undefined variable to the
> draw_brush call.
> > draw_brush (widget, x[i], y[i]);
> > i++;
> > return TRUE;
> > }
>
> Compile your program with -Wall gcc option and fix
> all warnings from
> compiler.
>
> To solve your problem you should do smth like this:
>
> void draw_button_clicked ( GtkWidget *button,
> GtkWidget *drawing_area )
> {
> g_timeout_add (100, real_draw, drawing_area);
> }
>
> static gint real_draw ( GtkWidget *drawing_area )
> {
> static int i=0;
>
> draw_brush (widget, x[i], y[i]);
> i++;
> return TRUE;
> }
>
> Somewhere in code:
> g_signal_connect (button, "clicked",
> G_CALLBACK(draw_button_clicked),
> drawing_area);
>
> Olexiy
>
>
__________________________________
Do you Yahoo!?
Take Yahoo! Mail with you! Get it on your mobile phone.
http://mobile.yahoo.com/maildemo
_______________________________________________
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
