static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
comm _com = new comm();
Drawing _drawing = new Drawing(_com);
Thread threadCom = new Thread(_com.startCom);
threadCom.Start();
Application.Run(_drawing);
}
public Drawing(comm _com)
{
InitializeComponent();
this._com = _com;
}