窗体吸附 Timer + 判断Location （简单实用）

  

   //
   实现接近屏幕窗体边源吸附
   

    
   private
    
   void
    timer1_Tick(
   object
    sender, EventArgs e)
 {
 
 
   if
    (
   this
   .WindowState 
   !=
    System.Windows.Forms.FormWindowState.Minimized)
 {
 
   if
    (Cursor.Position.X 
   >
    
   this
   .Left 
   &&
    Cursor.Position.X 
   <
    
   this
   .Right 
   &&
    Cursor.Position.Y 
   >
    
   this
   .Top 
   &&
    Cursor.Position.Y 
   <
    
   this
   .Bottom)
 {
 
   if
    (
   this
   .Top 
   <
    
   0
   )
 {
 
   this
   .Top 
   =
    
   -
   5
   ;
 
   this
   .Show();
 }
 
   else
    
   if
    (
   this
   .Left 
   <
    
   0
   )
 {
 
   this
   .Left 
   =
    
   -
   5
   ;
 
   this
   .Show();
 }
 
   else
    
   if
    (
   this
   .Left 
   +
    
   this
   .Width 
   >=
    Screen.PrimaryScreen.WorkingArea.Width)
 {
 
   this
   .Left 
   =
    Screen.PrimaryScreen.WorkingArea.Width 
   -
    
   this
   .Width 
   +
    
   5
   ;
 
   this
   .Show();
 }
 }
 
   else
   
 {
 
   if
    (
   this
   .Top 
   <=
    
   4
   )
 {
 
   this
   .Top 
   =
    
   5
    
   -
    
   this
   .Height;
 
   if
    (
   this
   .Left 
   <=
    
   4
   )
 {
 
   this
   .Left 
   =
    
   -
   5
   ;
 }
 
   else
    
   if
    (
   this
   .Left 
   +
    
   this
   .Width 
   >=
    Screen.PrimaryScreen.WorkingArea.Width 
   -
    
   4
   )
 {
 
   this
   .Left 
   =
    Screen.PrimaryScreen.WorkingArea.Width 
   -
    
   this
   .Width 
   +
    
   5
   ;
 }
 }
 
   else
    
   if
    (
   this
   .Left 
   <=
    
   4
   )
 {
 
   this
   .Left 
   =
    
   5
    
   -
    
   this
   .Width;
 }
 
   else
    
   if
    (
   this
   .Left 
   +
    
   this
   .Width 
   >=
    Screen.PrimaryScreen.WorkingArea.Width 
   -
    
   4
   )
 {
 
   this
   .Left 
   =
    Screen.PrimaryScreen.WorkingArea.Width 
   -
    
   5
   ;
 }
 }
 }

 }


  
  

   // 转于帖子：http://topic.csdn.net/u/20110526/00/5f741340-9e77-4b31-8542-25db3633a086.html?seed=1540128036&r=73515856#r_73515856