Enabling Flash in the .NET 2.0 WebBrowser control.

When a .NET 2.0 application uses the System.Windows.Forms.WebBrowser control to load a page which contains a Flash movie, the movie may fail to respond to mouse events.

The WebBrowserBase.WndProc method sets the focus to the WebBrowser control when a mouse event is received.

Create a new control derived from the WebBrowser control, and override the WndProc method:

using System;
using System.Windows.Forms;

public class WebBrowserEx : WebBrowser
{
    public WebBrowserEx()
    {
    }

    protected override void WndProc(ref Message m)
    {
        switch (m.Msg)
        {
            case 0x021:
            case 0x201:
            case 0x204:
            case 0x207:
                base.DefWndProc(ref m);
                return;
        }

        base.WndProc(ref m);
    }
}

Original solution posted to CodeProject by Lady-green.

• .NET Framework 2.0