c_gtk_cell_area_activate_cell

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
int function(GtkCellArea* area, GtkWidget* widget, GtkCellRenderer* renderer, GdkEvent* event, GdkRectangle* cellArea, GtkCellRendererState flags) c_gtk_cell_area_activate_cell;

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