WinForm实现类似QQ停靠，显示隐藏过程添加特效效果

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Threading;namespace DockFormsApplication
{
public partial class Form1 : Form
{
#region 属性 API特效窗体显示和隐藏 /// <summary>
/// //从左到右
/// </summary>
public const Int32 AW_HOR_LEFT_RIGHT = 0x00000001;
/// <summary>
/// 从右到左
/// </summary>
private const Int32 AW_HOR_RIGHT_LEFT = 0x00000002;
/// <summary>
/// 从上到下
/// </summary>
private const Int32 AW_VER_UP_DOWN = 0x00000004;
/// <summary>
/// 从下到上
/// </summary>
private const Int32 AW_VER_DOWN_UP = 0x00000008;
/// <summary>
/// 从中间到四周
/// </summary>
private const Int32 AW_CENTER = 0x00000010;
/// <summary>
/// 隐藏窗口
/// </summary>
private const Int32 AW_HIDE = 0x00010000;
/// <summary>
/// 显示窗口
/// </summary>
private const Int32 AW_ACTIVATE = 0x00020000;
/// <summary>
/// 使用滑动类型。缺省则为滚动动画类型。当使用AW_CENTER标志时，这个标志就被忽略
/// </summary>
private const Int32 AW_SLIDE = 0x00040000;
/// <summary>
/// 改变透明度
/// </summary>
private const Int32 AW_BLEND = 0x00080000; /// <summary>
/// 特效花费时间 单位：毫秒
/// </summary>
private int _speed = ; [DllImport("user32.dll")]
public static extern void AnimateWindow(IntPtr hwnd, int stime, int style);//显示效果 /// <summary>
/// 鼠标坐标
/// </summary>
private Point _cursorPoint; //API获取鼠标坐标
[DllImport("user32.dll")]
public static extern bool GetCursorPos(out Point pt); //线程暂停时间 单位：毫秒
private int _timespan = ;
private System.Threading.Timer _timer;
private delegate void LoadListDelegate();
private LoadListDelegate _loaddelegate; /// <summary>
/// 窗体是否显示，true——显示、false——隐藏
/// </summary>
private bool _isActive = true; /// <summary>
/// 停靠在边缘时，显示窗体的宽度
/// </summary>
private const int _smallX = ; #endregion public Form1()
{
InitializeComponent();
this.MaximizeBox = false;//取消最大化按钮
this.MinimizeBox = false;//取消最小化按钮
this.ShowInTaskbar = false;//任务栏不显示窗体图标
this.TopMost = false;//设置窗体总是显示在最前面 _loaddelegate = LoadControl;
} private void Form1_Load(object sender, EventArgs e)
{
//设置窗体显示位置 右下角
int workY = Screen.PrimaryScreen.WorkingArea.Height - Height;
int X = Screen.PrimaryScreen.Bounds.Width - Width;
this.Location = new Point(X, workY); //窗体打开的时候就开始计时器
BeginTimer();
} protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
//从右到左滑动
AnimateWindow(this.Handle, _speed, AW_HOR_RIGHT_LEFT | AW_SLIDE | AW_ACTIVATE);
} private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
_timer.Dispose();
//淡出效果
AnimateWindow(this.Handle, , AW_BLEND | AW_HIDE);
} //重写WndProc方法，禁止拖动和双击标题栏最大化
protected override void WndProc(ref Message m)
{
if (m.Msg == 0x231)
{
this.SuspendLayout();
}
else if (m.Msg == 0x232)
{
this.ResumeLayout();
}
else if (m.Msg == 0xA1 && m.WParam.ToInt32() == )//禁止拖动
{
return;
}
base.WndProc(ref m);
} /// <summary>
/// 隐藏窗体
/// </summary>
private void SetHide()
{
if (_isActive)
{
AnimateWindow(this.Handle, _speed, AW_HOR_LEFT_RIGHT | AW_SLIDE | AW_HIDE); int X = Screen.PrimaryScreen.Bounds.Width - _smallX;
int Y = this.Location.Y;
this.Location = new Point(X, Y); AnimateWindow(this.Handle, , AW_BLEND | AW_ACTIVATE);
_isActive = false;
}
} /// <summary>
/// 显示窗体
/// </summary>
private void SetActivate()
{
if (!_isActive)
{
AnimateWindow(this.Handle, , AW_BLEND | AW_HIDE); int X = Screen.PrimaryScreen.Bounds.Width - Width;
int Y = this.Location.Y;
this.Location = new Point(X, Y); AnimateWindow(this.Handle, _speed, AW_HOR_RIGHT_LEFT | AW_SLIDE | AW_ACTIVATE);
_isActive = true;
}
} private void LoadControl()
{
#region 控制窗体显示和隐藏
//获取当前鼠标坐标
GetCursorPos(out _cursorPoint);
//根据 窗体当前状态，判断窗体接下来是显示还是隐藏。
if (_isActive)
{
//当前窗体为显示，则接下来是隐藏
//如果鼠标坐标不在窗体范围内，则设置窗体隐藏，否则不处理
if (_cursorPoint.X < this.Location.X || _cursorPoint.Y < this.Location.Y)
{
SetHide();
}
}
else
{
//当前窗体为隐藏，则接下来是显示
//如果鼠标坐标在窗体范围内，则设置窗体显示，否则不处理
if (_cursorPoint.X >= this.Location.X && _cursorPoint.Y >= this.Location.Y)
{
SetActivate();
}
}
#endregion
} private void BeginTimer()
{
TimerCallback tcBack = new TimerCallback(InvokTimer);
_timer = new System.Threading.Timer(tcBack, null, , _timespan);
} private void InvokTimer(object state)
{
if (this.InvokeRequired)
{
this.Invoke(_loaddelegate);
}
}
}
}