怎样在ProcessCmdKey中调用onkeydown事件.多谢

怎样在ProcessCmdKey中调用onkeydown事件.谢谢
如题

[解决办法]
C#:
//in processcmdkey function
OnKeyDown( new KeyEventArgs( keyData ) );

vb.net:
Dim keyArgs As New KeyEventArgs( keyData ) )
OnKeyDown( keyArgs )