我需要在另一个控件的事件中找到鼠标下的控件.我可以从使用开始GetTopLevel并迭代GetChildAtPoint,但有更快的方法吗?
Han*_*ant 17
这段代码没有多大意义,但它确实避免遍历Controls集合:
[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;
}
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