[Glade-users] dynamic label on dialog box.

[ashats at hotmail.com (Arthur Shats)]

In Glade-2 I created a window with a few entry fields and a 'Next' btn. I also have one dialog box with OK 
btn that would be displayed if input in any of the entry fields is invalid. Depending on which entry field is 
invalid, I would like to put different msg (a label) on the dialog box. After user clicks OK btn on the 
dialog box, the box disappears and focus is set to the entry field that was invalid. My question is how to 
put a label on a dialog box dynamically, from the code. I am writing in C.
I display the dialog box in Next btn clicked event and the way I do it is this:
if (field1_is_invalid || field2_is_invalid || field3_is_invalid) {
  dialog1 = create_dialog();
  
  if (field1_is_invalid) {
    /* put label on the dialog box */
    gtk_dialog_run(GTK_DIALOG(dialog1));
    gtk_widget_hide(dialog1);
    gtk_widget_grab_focus(entry_field1);
  }
  else if (field2_is_invalid) {
    /* put some other label on the dialog box */
    gtk_dialog_run(GTK_DIALOG(dialog1));
    gtk_widget_hide(dialog1);
    gtk_widget_grab_focus(entry_field2);
  }
  else if (field3_is_invalid) {
    /* put yet another label on the dialog box */
    gtk_dialog_run(GTK_DIALOG(dialog1));
    gtk_widget_hide(dialog1);
    gtk_widget_grab_focus(entry_field3);
  }
}
 
So, how do I put a label on a dialog box from C code? 
 
Thanks much.
Arthur.                                           
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