macro to add code documentation

[sambo]

Is there a macro or an add-in out there that will allow you to hi-lite the blue part and automatically generate the template for the red part? I think I had something like this for VBA at one time, wondering if its possible for c#.

/// <summary>
/// a function for doing stuff
/// </summary>
/// <param name="param1">The first parameter</param>
/// <param name="param2">The second parameter</param>
public void MyFunc( object param1, object param2)
{
    ...
}