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解决cefsharp在winform中不显示tooltipText问题(网页元素的title提示)

 1.监听网页属性改变事件

webView.PropertyChanged += webView_PropertyChanged;

 

2.拖一个ToolTip控件到窗体

 

3.获取TooltipText并显示出来

  //隐藏toolTip                if (this.IsHandleCreated)                {                    this.BeginInvoke(new MethodInvoker(() =>                    {                        if (this.IsHandleCreated && !this.IsDisposed)                        {                            if (this.toolTip1.Active)                            {                                this.toolTip1.Hide(this);                            }                        }                    }));                }                if (e.PropertyName == "TooltipText") //tooltipText改变事件                {                    string tooltipText = this.webKitBrowser.TooltipText;                    Point elementPos = new Point(Cursor.Position.X - this.Location.X, Cursor.Position.Y - this.Location.Y);                    if (!String.IsNullOrEmpty(tooltipText))                    {                        this.Invoke(new MethodInvoker(() =>                        {                            System.Windows.Forms.Timer timer = new System.Windows.Forms.Timer();                            timer.Interval = 600;                            timer.Tick += (timer_sender, timer_e) =>                            {                                Point nowPos = new Point(Cursor.Position.X - this.Location.X, Cursor.Position.Y - this.Location.Y);                                //if ((nowPos.X <= elementPos.X + 20 && nowPos.X >= elementPos.X - 20) && (nowPos.Y <= elementPos.Y + 20 && nowPos.Y >= elementPos.Y - 20)) //鼠标停留了500ms(范围限定在一定范围)                                if (this.webKitBrowser.TooltipText == tooltipText) //600毫秒后,tooltipText没变                                {                                    this.toolTip1.Show(tooltipText, this, nowPos.X + 15, nowPos.Y + 15);                                }                                (timer_sender as System.Windows.Forms.Timer).Stop();                                (timer_sender as System.Windows.Forms.Timer).Dispose();                            };                            timer.Start();                        }));                    }                }