winform仿qq停靠屏幕边缘
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;
}
}
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