当把软件窗口拖动到屏幕边缘时，让软件窗体隐藏，鼠标再次悬浮时再把它显示出来，
根据下面的代码给窗体添加一系列事件
具体代码如下：
using System.Runtime.InteropServices;
namespace 仿QQ侧边隐藏
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
public const int WM_SYSCOMMAND = 0x0112;
public const int SC_MOVE = 0xF010;
public const int HTCAPTION = 0x0002;
//窗体的宽高
int formwidth;
int formheight;
private void Form1_Move(object sender, EventArgs e)
{
formwidth = this.Width;
formheight = this.Height;
int x = this.Location.X;
int y = this.Location.Y;
if (x <= 0)
{
this.Location = new System.Drawing.Point(0, y);
this.Width = 0;
}
if (y <= 0)
{
this.Location = new System.Drawing.Point(x, 0);
this.Height = 0;
}
}
private void Form1_MouseEnter(object sender, EventArgs e)
{
this.Width = formwidth;
this.Height = formheight;
}
private void Form1_MouseDown(object sender, MouseEventArgs e)
{
ReleaseCapture();
SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE HTCAPTION, 0);
}
private void Form1_MouseLeave(object sender, EventArgs e)
{
int nowx = Cursor.Position.X;
int nowy = Cursor.Position.Y;
if (nowx >= (this.Location.X this.Width) | nowx <= this.Location.X | nowy <= this.Location.Y | nowy >= (this.Location.Y this.Height))
{
if (this.Location.X == 0)
{
this.Width = 0;
}
if (this.Location.Y == 0)
{
this.Height = 0;
}
}
}
private void button1_Click(object sender, EventArgs e)
{
this.Close();
}
}
}
运行起来会发现效果是这样的：
把标题栏去掉
再次运行，调试程序，这个图不太好截，有需要的自己试一下吧。
