gtk: get width a TreeViewColumn would like to be if it were autosized

Question

Is there a way to get the width, in pixels, that a gtk.TreeViewColumn would want to be if the sizing mode was set as gtk.TREE_VIEW_COLUMN_AUTOSIZE, even if it's currently gtk.TREE_VIEW_COLUMN_FIXED?

Answer 1

I think gtk.TreeViewColumn.cell_get_size() will do the work.