C#实现类似QQ的窗体停靠

2019独角兽企业重金招聘Python工程师标准>>>

直接上代码：

 1         [DllImport("User32.dll")]
 2         public static extern bool PtInRect(ref Rectangle Rects, Point lpPoint);
 3 
 4         private void timerShowHide_Tick(object sender, EventArgs e)
 5         {
 6             if (this.WindowState == FormWindowState.Normal)
 7             {
 8                 System.Drawing.Point cursorPoint = new Point(Cursor.Position.X, Cursor.Position.Y);//获取鼠标在屏幕的坐标点
 9                 Rectangle Rects = new Rectangle(this.Left, this.Top, this.Left + this.Width, this.Top + this.Height);//存储当前窗体在屏幕的所在区域
10                 bool prInRect = PtInRect(ref Rects, cursorPoint);
11                 if (prInRect)
12                 {//当鼠标在当前窗体内
13                     if (this.Top < 0)//窗体的Top属性小于0
14                         this.Top = 0;
15                     else if (this.Left < 0)//窗体的Left属性小于0
16                         this.Left = 0;
17                     else if (this.Right > Screen.PrimaryScreen.WorkingArea.Width)//窗体的Right属性大于屏幕宽度
18                         this.Left = Screen.PrimaryScreen.WorkingArea.Width - this.Width;
19                 }
20                 else
21                 {
22                     if (this.Top < 5)               //当窗体的上边框与屏幕的顶端的距离小于5时
23                         this.Top = 5 - this.Height; //将窗体隐藏到屏幕的顶端
24                     else if (this.Left < 5)         //当窗体的左边框与屏幕的左端的距离小于5时
25                         this.Left = 5 - this.Width; //将窗体隐藏到屏幕的左端
26                     else if (this.Right > Screen.PrimaryScreen.WorkingArea.Width - 5)//当窗体的右边框与屏幕的右端的距离小于5时
27                         this.Left = Screen.PrimaryScreen.WorkingArea.Width - 5;//将窗体隐藏到屏幕的右端
28                 }
29             }
30         }

转载于:https://my.oschina.net/weisenz/blog/200641