是否有一个快速的方式来获得控制这下鼠标? [英] Is there a quick way to get the control that's under the mouse?
本文介绍了是否有一个快速的方式来获得控制这下鼠标?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要找到鼠标下的控制,另一个控件的事件中。我可以先参观一下 GetTopLevel
和重复使用上下 GetChildAtPoint
,但有一个更快的方法?
I need to find the control under the mouse, within an event of another control. I could start with GetTopLevel
and iterate down using GetChildAtPoint
, but is there a quicker way?
推荐答案
这code没有做出很大的意义,但它确实避免遍历控件集合:
This code doesn't make a lot of sense, but it does avoid traversing the Controls collections:
[System.Runtime.InteropServices.DllImport("user32.dll")]
private static extern IntPtr WindowFromPoint(Point pnt);
private void Form1_MouseMove(object sender, MouseEventArgs e) {
IntPtr hWnd = WindowFromPoint(Control.MousePosition);
if (hWnd != IntPtr.Zero) {
Control ctl = Control.FromHandle(hWnd);
if (ctl != null) label1.Text = ctl.Name;
}
}
private void button1_Click(object sender, EventArgs e) {
// Need to capture to see mouse move messages...
this.Capture = true;
}
这篇关于是否有一个快速的方式来获得控制这下鼠标?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文