Adds @widget to @overlay.
The widget will be stacked on top of the main widget added with gtk_container_add().
The position at which @widget is placed is determined from its #GtkWidget:halign and #GtkWidget:valign properties.
a #GtkWidget to be added to the container
3.2
See Implementation
Adds @widget to @overlay.
The widget will be stacked on top of the main widget added with gtk_container_add().
The position at which @widget is placed is determined from its #GtkWidget:halign and #GtkWidget:valign properties.