覆盖 .NET WebBrowsers WndProc答案

【问题标题】：Overriding .NET WebBrowsers WndProc覆盖 .NET WebBrowsers WndProc
【发布时间】：2011-02-08 15:13:22
【问题描述】：

对于我的一个项目，我正在覆盖 AXShockwaveFlash 控件以禁用右键单击，我可以使用以下代码对其进行管理；

public class FlashPlayer : AxShockwaveFlashObjects.AxShockwaveFlash
{
    private const int WM_MOUSEMOVE = 0x0200;
    private const int WM_MOUSEWHEEL = 0x020A;
    private const int WM_LBUTTONDOWN = 0x0201;
    private const int WM_LBUTTONUP = 0x0202;
    private const int WM_LBUTTONDBLCLK = 0x0203; 
    private const int WM_RBUTTONDOWN = 0x0204;
    private const int WM_RBUTTONUP = 0x0205;                      

    public new event MouseEventHandler DoubleClick;

    public new event MouseEventHandler MouseDown;

    public new event MouseEventHandler MouseUp;

    public new event MouseEventHandler MouseMove;

    public FlashPlayer()
    {
        this.HandleCreated += FlashPlayer_HandleCreated; // listen for the HandleCreated event.
    }

    void FlashPlayer_HandleCreated(object sender, EventArgs e) // make required configuration changes.
    {
        this.AllowFullScreen = "true";
        this.AllowNetworking = "all";
        this.AllowScriptAccess = "always";
    }

    protected override void WndProc(ref Message m) // Override's the WndProc and disables Flash activex's default right-click menu and if one exists shows the attached ContextMenuStrip.
    {
        switch (m.Msg)
        {
            case WM_LBUTTONDOWN:
                if (this.MouseDown != null) this.MouseDown(this, new MouseEventArgs(MouseButtons.Left, 1, Cursor.Position.X, Cursor.Position.Y, 0));
                break;
            case WM_LBUTTONUP:
                if (this.MouseUp != null) this.MouseUp(this, new MouseEventArgs(MouseButtons.None, 0, Cursor.Position.X, Cursor.Position.Y, 0));
                break;
            case WM_MOUSEMOVE:
                if (this.MouseMove != null) this.MouseMove(this, new MouseEventArgs(MouseButtons.None, 0, Cursor.Position.X, Cursor.Position.Y, 0));
                break;
            case WM_RBUTTONDOWN:
                if (this.ContextMenuStrip != null) this.ContextMenuStrip.Show(Cursor.Position.X, Cursor.Position.Y);
                m.Result = IntPtr.Zero; // don't allow actual flash control process the message by flagging it as processed.
                return;
            case WM_LBUTTONDBLCLK:
                if (this.DoubleClick != null) this.DoubleClick(this, new MouseEventArgs(MouseButtons.Left, 2, Cursor.Position.X, Cursor.Position.Y, 0));
                m.Result = IntPtr.Zero; // don't allow actual flash control process the message by flagging it as processed.
                return;
        }

        base.WndProc(ref m); // when we're done with processing the events, let the message pass to others also too.
    }
}

我正在尝试将代码也用于 WebBrowser 控件，但我在 WebBrowser 的 WndProc 上的点击事件根本没有被捕获。

有什么想法吗？

更新：我要做的是完全禁用网络浏览器上的右键单击，IsWebBrowserContextMenuEnabled 在我的情况下不起作用，因为网络浏览器中的 Flash 组件仍然存在处理右键单击并呈现它自己的菜单。

【问题讨论】：

又一次右键禁用.. 你想实现什么？不要限制用户做他想做的事的权利
抱歉，我不会在这里讨论 UI 决策。基本上这个想法是我自己的右键菜单，我可以为播放的电影提供无边界表单、聊天室等功能。

标签： c# .net winforms webbrowser-control wndproc

【解决方案1】：

随着您的更新，我想问题在于 WebBrowser 没有收到消息，因为消息被重定向到 Flash 窗口。使 Flash 播放器无窗口（我认为这是 wmode 参数）可能会起作用，否则您需要枚举 Web 浏览器的子窗口以找到控件，然后对其进行子类化。

【讨论】：