C# 向axWindowsMediaplayer添加事件侦听器

我有一个windows窗体，可以通过编程方式创建控件。。之后，我允许它们在我自己实现的每次拖放中移动：

private void valueToolStripMenuItem_Click(object sender, EventArgs e)
        {
        Label label = new Label();
        label.Text = "Label";
        label.AutoSize = true;
        label.Location = PointToClient(MousePosition);
        label.MouseDown += new MouseEventHandler(this.dyncontrol_MouseDown);
        label.MouseMove += new MouseEventHandler(this.dyncontrol_MouseMove);
        label.MouseUp += new MouseEventHandler(this.dyncontrol_MouseUp);
        label.ContextMenuStrip = valueContextMenu;
        this.Controls.Add(label);
        }

结合这些功能：

private void dyncontrol_MouseDown(object sender, MouseEventArgs e)
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            Control control = (Control)sender;
            selected = true;
            offset.X = PointToClient(MousePosition).X - control.Location.X;
            offset.Y = PointToClient(MousePosition).Y - control.Location.Y;
        }
    }
private void dyncontrol_MouseMove(object sender, MouseEventArgs e)
    {
        if (selected)
        {
            Control control = (Control)sender;
            Point newLocation = new Point(PointToClient(MousePosition).X - offset.X, PointToClient(MousePosition).Y - offset.Y);
            control.Location = newLocation;
        }
    }
private void dyncontrol_MouseUp(object sender, MouseEventArgs e)
    {
        selected = false;
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            Control control = (Control)sender;
            Point newLocation = new Point(PointToClient(MousePosition).X - offset.X, PointToClient(MousePosition).Y - offset.Y);
            control.Location = newLocation;
        }
    }

这适用于图片框、标签、按钮等。。 现在，我想添加一个axWindowsMediaplayer并执行相同的操作：

private void videoStreamToolStripMenuItem_Click(object sender, EventArgs e)
    {
        AxWMPLib.AxWindowsMediaPlayer wmp = new AxWMPLib.AxWindowsMediaPlayer();
        wmp.Size = new Size(300, 300);
        wmp.ContextMenuStrip = valueContextMenu;
        wmp.MouseDown += new MouseEventHandler(this.dyncontrol_MouseDown);
        wmp.MouseMove += new MouseEventHandler(this.dyncontrol_MouseMove);
        wmp.MouseUp += new MouseEventHandler(this.ddyncontrol_MouseUp);
        this.Controls.Add(wmp);
        wmp.uiMode = "none";
        wmp.Ctlenabled = false;
        wmp.URL = "C:\\Users\\Public\\Videos\\Sample Videos\\Wildlife.wmv";
    }

但是我不能拖动玩家（MouseDown和MouseUp没有开火），而且contextmenu不是正确的，而是一个标准的东西，看起来好像我没有改变任何东西

你知道为什么会这样吗

---

我已尝试删除项目中的引用并再次添加它

错误的事件。WMP公开它自己的，它们被命名为MouseDownEvent、MouseMoveEvent和MouseUpEvent。顺便说一句，当你使用designer时很容易发现。这解释了MouseDown没有被触发的原因。。我现在尝试这样做：wmp.MouseDownEvent+=new-AxWMPLib.\u WMPOCXEvents\u MouseDownEventHandler（this.dynControl\u MouseDown）；但是如果编译器不接受它，那么您还必须更改事件处理程序方法签名，第二个参数是AxWMPLib.\u WMPOCXEvents\u MouseMoveEvent。就像我说的，先和设计师一起做，这样这些事情就显而易见了。好的，谢谢！和设计师一起想出来的。。但是，当我在设计器中分配Contextmenustrip时，它也不会更改它？WMP有自己的上下文菜单，您通过设置CTLEABLED=false将其禁用。改为使用MouseDownEvent，测试e.nButton==2并调用ContextMenuStrip.Show（）