/// <summary> /// 窗口缺省过程函数 /// </summary> /// <param name="m">消息</param> protected override void WndProc(ref Message m) { if (m.Msg == API.WM_DEVICECHANGE) { if (m.WParam.ToInt32() == API.DBT_DEVNODES_CHANGED) { _RefreshCameraDevList d = new _RefreshCameraDevList(RefreshCameraDevList); this.BeginInvoke(d); } } base.WndProc(ref m); }