/// <summary> /// Called when a key is pressed /// </summary> /// <param name="sender"></param> /// <param name="e"></param> void CharCallback(vtkObject sender, vtkObjectEventArgs e) { vtkRenderWindowInteractor iren = renderWindowControl1.RenderWindow.GetInteractor(); sbyte keycode = iren.GetKeyCode(); //if the keycode is not M if (keycode != 109 && keycode != 77) { return; } int[] pos = iren.GetEventPosition(); ButtonCallback(pos[0], pos[1]); }