Got a solution: in GameForm.cs, add this line to the InitializeComponent function:
this.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.MouseWheelHandler);
And add in this function:
private void MouseWheelHandler(object sender, System.Windows.Forms.MouseEventArgs e) {
MessageBox.Show(e.Delta.ToString());
}
Not really built-in, but it works. Bluemonkmn, thanks for making all the classes easy to access
