Avoid crash when closing, fixes issue #2832
In rco_closewin()
this MR moves usage/read of cnnobj->scrolled_container
before it's destroyed by gtk_notebook_remove_page()
.
It also adds some pointers cleanup.
In rco_closewin()
this MR moves usage/read of cnnobj->scrolled_container
before it's destroyed by gtk_notebook_remove_page()
.
It also adds some pointers cleanup.