Remove GdkPixmap from a container

["amitjain" <amitjain webdunia com>]

Hi All!!!
i am using Gtk1.2.
I have a container in that i added some widgets and some pixmaps.
I added these pixmap in a vbox and then that i added that vbox in 
my main container.
now i want to remove vbox on some events, and pixmap should be 
disappear from screen.
i come to know about gtk_widget_unref(),gtk_container_remove(),
but i think i am missing somewhere in syncronisation between all those.
so can anybody help me.it would be appreciable.
Thanks in advance
Amit Jain