Hi SvenC,

Here is the code:
[code]
namespace NuDesign {
    using namespace System::Windows::Forms;

    public __gc class ndPanel : public System::Windows::Forms::Panel {
    public:
        __event KeyEventHandler *KeyDown;

        virtual bool ProcessCmdKey(Message __gc *msg, Keys key){
            if(msg->Msg == 0x100 && (key == Keys::Up || key == Keys::Down ||
key == Keys::Left
                || key == Keys::Right)){
                    KeyDown(0, new KeyEventArgs(key));
                }
            return false;
        }
    };
}
[/code]

.NET doesn't allow private inheritance.

No, it's the same in C# and VC++ 2005.  Only the class which declares an
event can fire it.  The public access refers to the ability to subscribe
handlers, not to trigger the event.  Usually calling the base class has an
OnKeyDown method which you can call, resulting in the event being fired with
your parameters.

Or, you can hide the parent event as you've done, but anyone who subscribes
with a base class pointer won't see your event.