A function used by gtk_tree_selection_set_select_function() to filter whether or not a row may be selected. It is called whenever a row's state might change. A return value of %TRUE indicates to @selection that it is okay to change the selection.
%TRUE, if the selection state of the row can be toggled
See Implementation
A function used by gtk_tree_selection_set_select_function() to filter whether or not a row may be selected. It is called whenever a row's state might change. A return value of %TRUE indicates to @selection that it is okay to change the selection.