gtkmm4GTKMM ColumnViewheader lin

gtkmm4 - GTKMM ColumnView - header line - how to obtain the Gtk::Box widget programatically - Stack Overflow
I write GTKMM applications using version 4.18 and I wish to programatically obtain the Gtk::Box that co
gtkmm4GTKMM ColumnViewheader linehow to obtain the GtkBox widget programaticallyStack Overflow
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