Wrinkled Shirt wrote:
> Hi guys,
>
> I looked through the archives for a solution to this problem, but the
> only solution I found still seg-faulted for me. Basically, if you want
> to create a GtkCList with titles, you need to use the function call
>
> GtkWidget * grid;
> char *blankrow[] = {"", "", "", ""};
>
> gtk_clist_new_with_titles(4, blankrow);
>
> The problem is, since I want to build the GtkCList with the result of an
> SQL query, I'm not going to know ahead of time exactly how many columns
> are going to be needed. I will be able to find out how many columns are
> needed after the program has started, and use that to dynamically create
> the blankrow, but so far, every way I've tried has come up empty.
> Hard-coding the blankrow like I did above isn't an option.
>
> My question is this: how do I create blankrow of N columns containing N
> ""'s, during runtime? Maybe this is more of a C question than a Gtk
> question... if anybody could help, I'd really appreciate it. I'm going
> nuts here.
>
> The only solution put forward, to initialize it using
>
> widget = gtk_clist_new_with_titles(cols, "");
>
> didn't work when I had more than 2 columns.
gtk_clist_new_with_titles() requires an array of pointers-to-strings
that contains the same number of elements as there are columns. My
straight C is rusty, but something along the lines of:
gint i = 0;
gint columncount = /* Returned from your SQL query */
gchar** titles = malloc(columncount * sizeof(gchar*));
for(i = 0; i < columncount; i++)
titles[i] = "";
widget = gtk_clist_new_with_titles(columncount, titles);
... should do the trick. I don't recall whether GtkCList copies or
references the strings in the array, so you'll have to experiment to see
if you can do "free(titles);" immediately afterwards.
HTH,
Timothy M. Shead
[EMAIL PROTECTED]
_______________________________________________
gtk-list mailing list
[EMAIL PROTECTED]
http://mail.gnome.org/mailman/listinfo/gtk-list
