c - GTK+ :How to communicating between GtkWindow?

Question

我想在两个 TOPLEVEL GtkWindow 之间进行通信。 例如，我双击GtkTreeView中的行，新的GtkWindow用于修改该行的上下文。 但是，除了声明一个全局变量来传递结构体之外，我没有找到解决方案。我是否可以找到一个巧妙的方法来帮助我解决问题？ 作为 GTK 的新手，我将感谢您的帮助。

Answer 1

您可以通过“行激活”信号传递数据:

this_window = gtk_window_new (mode);
that_window = gtk_window_new (mode);
tv = gtk_tree_view_new ();

g_object_connect (tv, "row_activated", 
                  G_CALLBACK (on_row_activate), that_window); 



    static mode my_func_using_data (view, that_window)
{
    // do something here to pass a data to view
    ....
    ....
    selection = view.get_selection ()
    GtkTreeModel *model;
    GtkTreeIter iter;
        if ( gtk_tree_selection_get_selected (selection))
    {
        // modify the data here with model and iter
    }

}
    static void on_row_activate (GtkTreeView *view, 
                                 GtkTreePath *path, 
                                 GtkTreeViewColumn *col,
                                 gpointer that_window)
{
    my_func_using_data (view, that_window)
}