Re: problem using gtk_color_button_get_color

[Andreas Madsack <gtk bol bb bawue de>]

On Monday 20 December 2004 02:01, Harring Figueiredo wrote:
> --- Andreas Madsack <gtk bol bb bawue de> wrote:
> > Hello,
> >
> > <...>
>
>   You are lucky it does not core dump in the first call :P)
>
> GdkColor *color;
> GtkWidget *w;
>
>    So far you have not allocated memory to any of the above variables, it
> is pointing to lala land. Since you did not get a core dump on the first
> call, it is pointing to a memory area dedicated to your process.
>
> >   gtk_color_button_get_color ((GtkColorButton *)w, color);
>
>   and since there is no memory alocated, it will cause what you are
> getting.
>
>
>   Here is how you likely want it done.
>
>   GdkColor color;
>   GtkWidget *w;
>
>     Make sure 'w' is pointng to a valid, already allocated widget (in this
> case a GtkColorButton) (Perhaps you should add a check to see if glade
> found you widget.)
>    i.e.
>    w=lookup_widget (GTK_WIDGET (button), "colorbutton1");
>    g_return_if_fail(w != null);
>   /* down the road, this will save you a lot of grief when debuging if you
> happend to change the name of the button! */
>
>
>   gtk_color_button_get_color ((GtkColorButton *)w, &color);
>
>   Now, it should work.
yes, it works. 
thanks.

-- 
<>< Andreas Madsack