default activatation of radio_menu_item

[Chanop Silpa-Anan <Chanop Silpa-Anan syseng anu edu au>]

Hi,
I'm buding a menu using radio_menu_item and option_menu. I connect callback function to these menu. The problem is, I can make the default setting show using gtk_option_menu_set_history, but I can not activate the callback function by default. It means I have to click the menu and select to activate callback function. I tried gtk_check_menu_item_set_active, but it does not work.

BTW, I'm using GTK+ 1.2.0

Thank in advance,

Chanop