wxwidgets - How can I auto-scroll a wxTreeControl widget while dragging with the mouse?

Question

I have a wxTreeCtrl widget with scroll bars, where I want to drag and drop items on other items. But when I drag an item, how can I make the control automatically scroll invisible items into view?

Answer 1

据我所知，你应该手动完成。从 wxTreeCtrl 派生一个类，重写相关方法来捕获鼠标拖动事件。然后在拖动到顶部/底部时手动调用合理量的滚动功能。