qq窗体实现

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Runtime.InteropServices;namespace QQFrm{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } #region 公共变量 IntPtr Tem_Handle;//获取控件及窗体的句柄 Point CPoint;//获取控件中鼠标的坐标 static int Tem_place = 0; int Frm_Height = 0; int FrmHeight = 0; #endregion #region API声明 //获取当前鼠标下可视化控件的句柄 [DllImport("user32.dll")] public static extern int WindowFromPoint(int xPoint, int yPoint); //获取指定句柄的父级句柄 [DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)] public static extern IntPtr GetParent(IntPtr hWnd); //获取屏幕的大小 [DllImport("user32.dll", EntryPoint = "GetSystemMetrics")] private static extern int GetSystemMetrics(int mVal); #endregion #region 获取当前鼠标下可视化控件的句柄 /// <summary> /// 获取当前鼠标下可视化控件的句柄 /// </summary> /// <param x="int">当前鼠标的X坐标</param> /// <param y="int">当前鼠标的Y坐标</param> public IntPtr FormNameAt(int x, int y) { IntPtr Tem_hWnd;//设置存储句柄的变量 Tem_Handle = (IntPtr)(WindowFromPoint(x, y));//获取当前鼠标下可视化控件的句柄 Tem_hWnd = Tem_Handle;//记录原始句柄 while (Tem_hWnd != ((IntPtr)0))//遍历该句柄的父级句柄 { Tem_Handle = Tem_hWnd;//记录当前句柄 Tem_hWnd = GetParent(Tem_hWnd);//获取父级句柄 } return Tem_Handle;//返回最底层的父级句柄 } #endregion private void timer1_Tick(object sender, EventArgs e) { if (this.Top < 3 && Tem_place==0)//如果窗体被移到屏幕的顶部 { if (this.Handle == FormNameAt(Cursor.Position.X, Cursor.Position.Y))//当鼠标移致到该窗体上 { panel_Title.Tag = 1;//设置标识，用于判断窗体在屏幕顶部 timer2.Enabled = false;//不对窗体进行拉伸操作 this.Top = 0;//使窗体致顶 } else { panel_Title.Tag = 1;//设置标识，用于判断窗体在屏幕顶部 timer2.Enabled = true;//将窗体在顶部进行隐藏 } } else { if (this.Left < 3 || this.Right > GetSystemMetrics(0) - 3)//如果窗体被移到屏幕的左端或右端 { if (this.Left < 3)//如果窗体被移到屏幕的左端 { if (this.Handle == FormNameAt(Cursor.Position.X, Cursor.Position.Y))//当鼠标移致到该窗体上 { panel_Title.Tag = 2;//设置标识，用于判断窗体在屏幕左端 timer2.Enabled = false; Frm_Height = this.Height; this.Left = 0;//使窗体致左 this.Top = 0; this.Height = Screen.AllScreens[0].Bounds.Height; Tem_place = 1; } else { panel_Title.Tag = 2; timer2.Enabled = true;//将窗体在左端进行隐藏 } } if (this.Right > GetSystemMetrics(0) - 3)//如果窗体被移到屏幕的右端 { if (this.Handle == FormNameAt(Cursor.Position.X, Cursor.Position.Y))//当鼠标移致到该窗体上 { panel_Title.Tag = 3;//设置标识，用于判断窗体在屏幕右端 timer2.Enabled = false; Frm_Height = this.Height; this.Left = GetSystemMetrics(0) - this.Width;//使窗体致右 this.Top = 0; this.Height = Screen.AllScreens[0].Bounds.Height; Tem_place = 1; } else { panel_Title.Tag = 3; timer2.Enabled = true;//将窗体在右端进行隐藏 } } } } } private void timer2_Tick(object sender, EventArgs e) { switch (Convert.ToInt16(panel_Title.Tag.ToString()))//对标识进行判断 { case 1://顶端隐藏 { if (this.Top < 5) this.Top = -(this.Height - 2); break; } case 2://左端隐藏 { if (this.Left < 5) this.Left = -(this.Width - 2); break; } case 3://右端隐藏 { if ((this.Left this.Width) > (GetSystemMetrics(0) - 5)) this.Left = GetSystemMetrics(0) - 2; break; } } } private void panel1_Click(object sender, EventArgs e) { this.Close(); } #region 利用窗体上的控件移动窗体 /// <summary> /// 利用控件移动窗体 /// </summary> /// <param Frm="Form">窗体</param> /// <param e="MouseEventArgs">控件的移动事件</param> public void FrmMove(Form Frm, MouseEventArgs e) //Form或MouseEventArgs添加命名空间using System.Windows.Forms; { if (e.Button == MouseButtons.Left) { Point myPosittion = Control.MousePosition;//获取当前鼠标的屏幕坐标 myPosittion.Offset(CPoint.X, CPoint.Y);//重载当前鼠标的位置 Frm.DesktopLocation = myPosittion;//设置当前窗体在屏幕上的位置 Tem_place = 0; this.Height = FrmHeight; } } #endregion private void panel_Title_MouseDown(object sender, MouseEventArgs e) { timer1.Enabled = false; CPoint = new Point(-e.X, -e.Y); } private void panel_Title_MouseMove(object sender, MouseEventArgs e) { FrmMove(this, e); } private void panel_Title_MouseUp(object sender, MouseEventArgs e) { timer1.Enabled = true; } private void Form1_Load(object sender, EventArgs e) { Frm_Height = this.Height; FrmHeight = this.Height; this.TopMost = true; } }}