C#磁性窗体设计

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;

namespace magnetism
{
    public partial class Frm_Libretto : Form
    {
        public Frm_Libretto()
        {
            InitializeComponent();
        }

#region  公共变量
        FrmClass Cla_FrmClass = new FrmClass();
        #endregion

private void Frm_Libretto_Load(object sender, EventArgs e)
        {
            this.Top = FrmClass.Example_Play_Top;
            this.Left = FrmClass.Example_Play_Left + FrmClass.Example_Play_Width;
            Cla_FrmClass.FrmInitialize(this);
        }

private void panel_Title_MouseDown(object sender, MouseEventArgs e)
        {
            FrmClass.CPoint = new Point(-e.X, -e.Y);
        }

private void panel_Title_MouseMove(object sender, MouseEventArgs e)
        {
            FrmClass.Example_Assistant_AdhereTo = false;
            FrmClass.Example_Libretto_AdhereTo = false;
            Cla_FrmClass.FrmMove(this, e);
        }

private void panel_Title_MouseUp(object sender, MouseEventArgs e)
        {
            Cla_FrmClass.FrmPlace(this);
        }
    }
}

namespace magnetism
{
    partial class Frm_Libretto
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

/// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

#region Windows Form Designer generated code

/// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.panel_Title = new System.Windows.Forms.Panel();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            //
            // pictureBox1
            //
            this.pictureBox1.Image = global::magnetism.Properties.Resources._2;
            this.pictureBox1.Location = new System.Drawing.Point(0, 31);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(290, 209);
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            //
            // panel_Title
            //
            this.panel_Title.BackColor = System.Drawing.Color.MediumBlue;
            this.panel_Title.BackgroundImage = global::magnetism.Properties.Resources._5;
            this.panel_Title.Dock = System.Windows.Forms.DockStyle.Top;
            this.panel_Title.Location = new System.Drawing.Point(0, 0);
            this.panel_Title.Name = "panel_Title";
            this.panel_Title.Size = new System.Drawing.Size(290, 31);
            this.panel_Title.TabIndex = 0;
            this.panel_Title.MouseMove += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseMove);
            this.panel_Title.MouseDown += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseDown);
            this.panel_Title.MouseUp += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseUp);
            //
            // Frm_Libretto
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(290, 240);
            this.Controls.Add(this.pictureBox1);
            this.Controls.Add(this.panel_Title);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "Frm_Libretto";
            this.Tag = "0";
            this.Text = "Frm_Libretto";
            this.Load += new System.EventHandler(this.Frm_Libretto_Load);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);

}

#endregion

private System.Windows.Forms.Panel panel_Title;
        private System.Windows.Forms.PictureBox pictureBox1;
    }
}

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;

namespace magnetism
{
    public partial class Frm_ListBox : Form
    {
        public Frm_ListBox()
        {
            InitializeComponent();
        }

#region  公共变量
        FrmClass Cla_FrmClass = new FrmClass();
        #endregion

private void Frm_ListBox_Load(object sender, EventArgs e)
        {
            this.Left = FrmClass.Example_Play_Left;
            this.Top = FrmClass.Example_Play_Top + FrmClass.Example_Play_Height;
            Cla_FrmClass.FrmInitialize(this);
        }

private void panel_Title_MouseDown(object sender, MouseEventArgs e)
        {
            FrmClass.CPoint = new Point(-e.X, -e.Y);
        }

private void panel_Title_MouseMove(object sender, MouseEventArgs e)
        {
            FrmClass.Example_Assistant_AdhereTo = false;
            FrmClass.Example_List_AdhereTo = false;
            Cla_FrmClass.FrmMove(this, e);
        }

private void panel_Title_MouseUp(object sender, MouseEventArgs e)
        {
            Cla_FrmClass.FrmPlace(this);
        }
    }
}
namespace magnetism
{
    partial class Frm_ListBox
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

/// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

#region Windows Form Designer generated code

/// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.panel_Title = new System.Windows.Forms.Panel();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            //
            // pictureBox1
            //
            this.pictureBox1.Image = global::magnetism.Properties.Resources._4;
            this.pictureBox1.Location = new System.Drawing.Point(0, 31);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(290, 89);
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            //
            // panel_Title
            //
            this.panel_Title.BackColor = System.Drawing.Color.MediumBlue;
            this.panel_Title.BackgroundImage = global::magnetism.Properties.Resources._5;
            this.panel_Title.Dock = System.Windows.Forms.DockStyle.Top;
            this.panel_Title.Location = new System.Drawing.Point(0, 0);
            this.panel_Title.Name = "panel_Title";
            this.panel_Title.Size = new System.Drawing.Size(290, 31);
            this.panel_Title.TabIndex = 0;
            this.panel_Title.MouseMove += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseMove);
            this.panel_Title.MouseDown += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseDown);
            this.panel_Title.MouseUp += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseUp);
            //
            // Frm_ListBox
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(290, 120);
            this.Controls.Add(this.pictureBox1);
            this.Controls.Add(this.panel_Title);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "Frm_ListBox";
            this.Tag = "0";
            this.Text = "辅窗体1";
            this.Load += new System.EventHandler(this.Frm_ListBox_Load);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);

}

#endregion

private System.Windows.Forms.Panel panel_Title;
        private System.Windows.Forms.PictureBox pictureBox1;
    }
}
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;

namespace magnetism
{
    public partial class Frm_Play : Form
    {
        public Frm_Play()
        {
            InitializeComponent();
        }

#region  公共变量
        FrmClass Cla_FrmClass = new FrmClass();
        public static Form F_List = new Form();
        public static Form F_Libretto = new Form();
        public static Form F_Screen = new Form();
        #endregion

private void Frm_Play_Load(object sender, EventArgs e)
        {
            //窗体位置的初始化
            Cla_FrmClass.FrmInitialize(this);
        }

private void panel_Title_MouseDown(object sender, MouseEventArgs e)
        {
            int Tem_Y = 0;
            if (e.Button == MouseButtons.Left)
            {
                Cla_FrmClass.FrmBackCheck();
                Tem_Y = e.Y;
                FrmClass.FrmPoint = new Point(e.X, Tem_Y);
                FrmClass.CPoint = new Point(-e.X, -Tem_Y);
                if (FrmClass.Example_List_AdhereTo)
                {
                    Cla_FrmClass.FrmDistanceJob(this, F_List);
                    if (FrmClass.Example_Assistant_AdhereTo)
                    {
                        Cla_FrmClass.FrmDistanceJob(this, F_Libretto);
                    }
                }
                if (FrmClass.Example_Libretto_AdhereTo)
                {
                    Cla_FrmClass.FrmDistanceJob(this, F_Libretto);
                    if (FrmClass.Example_Assistant_AdhereTo)
                    {
                        Cla_FrmClass.FrmDistanceJob(this, F_List);
                    }
                }
            }
        }

private void panel_Title_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {

Cla_FrmClass.FrmMove(this, e);
                if (FrmClass.Example_List_AdhereTo)
                {

Cla_FrmClass.ManyFrmMove(this, e, F_List);
                    Cla_FrmClass.FrmInitialize(F_List);
                    if (FrmClass.Example_Assistant_AdhereTo)
                    {
                        Cla_FrmClass.ManyFrmMove(this, e, F_Libretto);
                        Cla_FrmClass.FrmInitialize(F_Libretto);
                    }
                }

if (FrmClass.Example_Libretto_AdhereTo)
                {
                    Cla_FrmClass.ManyFrmMove(this, e, F_Libretto);
                    Cla_FrmClass.FrmInitialize(F_Libretto);
                    if (FrmClass.Example_Assistant_AdhereTo)
                    {
                        Cla_FrmClass.ManyFrmMove(this, e, F_List);
                        Cla_FrmClass.FrmInitialize(F_List);
                    }
                }
                Cla_FrmClass.FrmInitialize(this);
            }
        }

private void panel_Title_MouseUp(object sender, MouseEventArgs e)
        {
            Cla_FrmClass.FrmPlace(this);
        }

private void Frm_Play_Shown(object sender, EventArgs e)
        {
            //显示列表窗体
            F_List = new Frm_ListBox();
            F_List.ShowInTaskbar = false;
            FrmClass.Example_ListShow = true;
            F_List.Show();
            //显示歌词窗体
            F_Libretto = new Frm_Libretto();
            F_Libretto.ShowInTaskbar = false;
            FrmClass.Example_LibrettoShow = true;
            F_Libretto.Show();
            F_Libretto.Left = this.Left + this.Width;
            F_Libretto.Top = this.Top;
            //各窗体位置的初始化
            Cla_FrmClass.FrmInitialize(F_List);
            Cla_FrmClass.FrmInitialize(F_Libretto);
        }

private void panel_Close_Click(object sender, EventArgs e)
        {
            F_List.Close();
            F_List.Dispose();
            F_Libretto.Close();
            F_Libretto.Dispose();
            F_Screen.Close();
            F_Screen.Dispose();
            this.Close();
        }

private void panel_Title_Click(object sender, EventArgs e)
        {
            F_List.Focus();
            F_Libretto.Focus();
            this.Focus();

}

private void button1_Click(object sender, EventArgs e)
        {
            if (Convert.ToInt32(F_List.Tag.ToString()) == 0)
            {
                F_List.Tag = 1;
                F_List.Visible = false;
            }
            else
            {
                F_List.Tag = 0;
                F_List.Visible = true;
            }
        }

private void button2_Click(object sender, EventArgs e)
        {
            if (Convert.ToInt32(F_Libretto.Tag.ToString()) == 0)
            {
                F_Libretto.Tag = 1;
                F_Libretto.Visible = false;
            }
            else
            {
                F_Libretto.Tag = 0;
                F_Libretto.Visible = true;
            }
        }

}
}
namespace magnetism
{
    partial class Frm_Play
    {
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.IContainer components = null;

/// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

#region Windows 窗体设计器生成的代码

/// <summary>
        /// 设计器支持所需的方法 - 不要
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.panel_Title = new System.Windows.Forms.Panel();
            this.panel_Close = new System.Windows.Forms.Panel();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.button1 = new System.Windows.Forms.Button();
            this.button2 = new System.Windows.Forms.Button();
            this.panel_Title.SuspendLayout();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.SuspendLayout();
            //
            // panel_Title
            //
            this.panel_Title.BackColor = System.Drawing.Color.MediumBlue;
            this.panel_Title.BackgroundImage = global::magnetism.Properties.Resources._1;
            this.panel_Title.Controls.Add(this.panel_Close);
            this.panel_Title.Dock = System.Windows.Forms.DockStyle.Top;
            this.panel_Title.Location = new System.Drawing.Point(0, 0);
            this.panel_Title.Name = "panel_Title";
            this.panel_Title.Size = new System.Drawing.Size(290, 31);
            this.panel_Title.TabIndex = 0;
            this.panel_Title.MouseMove += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseMove);
            this.panel_Title.Click += new System.EventHandler(this.panel_Title_Click);
            this.panel_Title.MouseDown += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseDown);
            this.panel_Title.MouseUp += new System.Windows.Forms.MouseEventHandler(this.panel_Title_MouseUp);
            //
            // panel_Close
            //
            this.panel_Close.BackColor = System.Drawing.Color.Red;
            this.panel_Close.BackgroundImage = global::magnetism.Properties.Resources.Close;
            this.panel_Close.Location = new System.Drawing.Point(270, 5);
            this.panel_Close.Name = "panel_Close";
            this.panel_Close.Size = new System.Drawing.Size(18, 18);
            this.panel_Close.TabIndex = 0;
            this.panel_Close.Click += new System.EventHandler(this.panel_Close_Click);
            //
            // pictureBox1
            //
            this.pictureBox1.Image = global::magnetism.Properties.Resources._4;
            this.pictureBox1.Location = new System.Drawing.Point(0, 31);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(290, 89);
            this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            //
            // button1
            //
            this.button1.Location = new System.Drawing.Point(155, 80);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(52, 23);
            this.button1.TabIndex = 2;
            this.button1.Text = "窗体1";
            this.button1.UseVisualStyleBackColor = true;
            this.button1.Click += new System.EventHandler(this.button1_Click);
            //
            // button2
            //
            this.button2.Location = new System.Drawing.Point(213, 80);
            this.button2.Name = "button2";
            this.button2.Size = new System.Drawing.Size(52, 23);
            this.button2.TabIndex = 3;
            this.button2.Text = "窗体2";
            this.button2.UseVisualStyleBackColor = true;
            this.button2.Click += new System.EventHandler(this.button2_Click);
            //
            // Frm_Play
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(290, 120);
            this.Controls.Add(this.button2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.pictureBox1);
            this.Controls.Add(this.panel_Title);
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
            this.Name = "Frm_Play";
            this.Text = "主窗体";
            this.Load += new System.EventHandler(this.Frm_Play_Load);
            this.Shown += new System.EventHandler(this.Frm_Play_Shown);
            this.panel_Title.ResumeLayout(false);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.ResumeLayout(false);

}

#endregion

private System.Windows.Forms.Panel panel_Title;
        private System.Windows.Forms.Panel panel_Close;
        private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.Button button2;
    }
}

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;//添加控件及窗体的命名空间
using System.Drawing;//添加Point的命名空间
using System.Collections;//为ArrayList添加命名空间

namespace magnetism
{
    class FrmClass
    {
        #region  磁性窗体-公共变量
        //记录窗体的隐藏与显示
        public static bool Example_ListShow = false;
        public static bool Example_LibrettoShow = false;
        public static bool Example_ScreenShow = false;

//记录鼠标的当前位置
        public static Point CPoint;  //添加命名空间using System.Drawing;
        public static Point FrmPoint;
        public static int Example_FSpace = 10;//设置窗体间的距离

//Frm_Play窗体的位置及大小
        public static int Example_Play_Top = 0;
        public static int Example_Play_Left = 0;
        public static int Example_Play_Width = 0;
        public static int Example_Play_Height = 0;
        public static bool Example_Assistant_AdhereTo = false;//辅助窗体是否磁性在一起

//Frm_ListBos窗体的位置及大小
        public static int Example_List_Top = 0;
        public static int Example_List_Left = 0;
        public static int Example_List_Width = 0;
        public static int Example_List_Height = 0;
        public static bool Example_List_AdhereTo = false;//辅助窗体是否与主窗体磁性在一起

//Frm_Libretto窗体的位置及大小
        public static int Example_Libretto_Top = 0;
        public static int Example_Libretto_Left = 0;
        public static int Example_Libretto_Width = 0;
        public static int Example_Libretto_Height = 0;
        public static bool Example_Libretto_AdhereTo = false;//辅助窗体是否与主窗体磁性在一起

//窗体之间的距离差
        public static int Example_List_space_Top = 0;
        public static int Example_List_space_Left = 0;
        public static int Example_Libretto_space_Top = 0;
        public static int Example_Libretto_space_Left = 0;
        #endregion

#region  检测各窗体是否连接在一起
        /// <summary>
        /// 检测各窗体是否连接在一起
        /// </summary>
        public void FrmBackCheck()
        {
            bool Tem_Magnetism = false;
            //Frm_ListBos与主窗体
            Tem_Magnetism = false;
            if ((Example_Play_Top - Example_List_Top) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Left - Example_List_Left) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Left - Example_List_Left - Example_List_Width) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Left - Example_List_Left + Example_List_Width) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Top - Example_List_Top - Example_List_Height) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Top - Example_List_Top + Example_List_Height) == 0)
                Tem_Magnetism = true;
            if (Tem_Magnetism)
                Example_List_AdhereTo = true;

//Frm_Libretto与主窗体
            Tem_Magnetism = false;
            if ((Example_Play_Top - Example_Libretto_Top) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Left - Example_Libretto_Left) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Left - Example_Libretto_Left - Example_Libretto_Width) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Left - Example_Libretto_Left + Example_Libretto_Width) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Top - Example_Libretto_Top - Example_Libretto_Height) == 0)
                Tem_Magnetism = true;
            if ((Example_Play_Top - Example_Libretto_Top + Example_Libretto_Height) == 0)
                Tem_Magnetism = true;
            if (Tem_Magnetism)
                Example_Libretto_AdhereTo = true;

//两个辅窗体
            Tem_Magnetism = false;
            if ((Example_List_Top - Example_Libretto_Top) == 0)
                Tem_Magnetism = true;
            if ((Example_List_Left - Example_Libretto_Left) == 0)
                Tem_Magnetism = true;
            if ((Example_List_Left - Example_Libretto_Left - Example_Libretto_Width) == 0)
                Tem_Magnetism = true;
            if ((Example_List_Left - Example_Libretto_Left + Example_Libretto_Width) == 0)
                Tem_Magnetism = true;
            if ((Example_List_Top - Example_Libretto_Top - Example_Libretto_Height) == 0)
                Tem_Magnetism = true;
            if ((Example_List_Top - Example_Libretto_Top + Example_Libretto_Height) == 0)
                Tem_Magnetism = true;
            if (Tem_Magnetism)
                Example_Assistant_AdhereTo = true;
        }
        #endregion

#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
            }
        }
        #endregion

#region  计算窗体之间的距离差
        /// <summary>
        /// 计算窗体之间的距离差
        /// </summary>
        /// <param Frm="Form">窗体</param>
        /// <param Follow="Form">跟随窗体</param>
        public void FrmDistanceJob(Form Frm, Form Follow)
        {
            switch (Follow.Name)
            {
                case "Frm_ListBox":
                    {
                        Example_List_space_Top = Follow.Top - Frm.Top;
                        Example_List_space_Left = Follow.Left - Frm.Left;
                        break;
                    }
                case "Frm_Libretto":
                    {
                        Example_Libretto_space_Top = Follow.Top - Frm.Top;
                        Example_Libretto_space_Left = Follow.Left - Frm.Left;
                        break;
                    }
            }
        }
        #endregion

#region  磁性窗体的移动
        /// <summary>
        /// 磁性窗体的移动
        /// </summary>
        /// <param Frm="Form">窗体</param>
        /// <param e="MouseEventArgs">控件的移动事件</param>
        /// <param Follow="Form">跟随窗体</param>
        public void ManyFrmMove(Form Frm, MouseEventArgs e, Form Follow)  //Form或MouseEventArgs添加命名空间using System.Windows.Forms;
        {
            if (e.Button == MouseButtons.Left)
            {
                int Tem_Left = 0;
                int Tem_Top = 0;
                Point myPosittion = Control.MousePosition;//获取当前鼠标的屏幕坐标
                switch (Follow.Name)
                {
                    case "Frm_ListBox":
                        {
                            Tem_Top = Example_List_space_Top - FrmPoint.Y;
                            Tem_Left = Example_List_space_Left - FrmPoint.X;
                            break;
                        }
                    case "Frm_Libretto":
                        {
                            Tem_Top = Example_Libretto_space_Top - FrmPoint.Y;
                            Tem_Left = Example_Libretto_space_Left - FrmPoint.X;
                            break;
                        }
                }
                myPosittion.Offset(Tem_Left, Tem_Top);
                Follow.DesktopLocation = myPosittion;
            }
        }
        #endregion

#region  对窗体的位置进行初始化
        /// <summary>
        /// 对窗体的位置进行初始化
        /// </summary>
        /// <param Frm="Form">窗体</param>
        public void FrmInitialize(Form Frm)
        {
            switch (Frm.Name)
            {
                case "Frm_Play":
                    {
                        Example_Play_Top = Frm.Top;
                        Example_Play_Left = Frm.Left;
                        Example_Play_Width = Frm.Width;
                        Example_Play_Height = Frm.Height;
                        break;
                    }
                case "Frm_ListBox":
                    {
                        Example_List_Top = Frm.Top;
                        Example_List_Left = Frm.Left;
                        Example_List_Width = Frm.Width;
                        Example_List_Height = Frm.Height;
                        break;
                    }
                case "Frm_Libretto":
                    {
                        Example_Libretto_Top = Frm.Top;
                        Example_Libretto_Left = Frm.Left;
                        Example_Libretto_Width = Frm.Width;
                        Example_Libretto_Height = Frm.Height;
                        break;
                    }
            }

}
        #endregion

#region  存储各窗体的当前信息
        /// <summary>
        /// 存储各窗体的当前信息
        /// </summary>
        /// <param Frm="Form">窗体</param>
        /// <param e="MouseEventArgs">控件的移动事件</param>
        public void FrmPlace(Form Frm)
        {
            FrmInitialize(Frm);
            FrmMagnetism(Frm);
        }
        #endregion

#region  窗体的磁性设置
        /// <summary>
        /// 窗体的磁性设置
        /// </summary>
        /// <param Frm="Form">窗体</param>
        public void FrmMagnetism(Form Frm)
        {
            if (Frm.Name != "Frm_Play")
            {
                FrmMagnetismCount(Frm, Example_Play_Top, Example_Play_Left, Example_Play_Width, Example_Play_Height, "Frm_Play");
            }
            if (Frm.Name != "Frm_ListBos")
            {
                FrmMagnetismCount(Frm, Example_List_Top, Example_List_Left, Example_List_Width, Example_List_Height, "Frm_ListBos");
            }
            if (Frm.Name != "Frm_Libratto")
            {
                FrmMagnetismCount(Frm, Example_Libretto_Top, Example_Libretto_Left, Example_Libretto_Width, Example_Libretto_Height, "Frm_Libratto");
            }
            FrmInitialize(Frm);
        }
        #endregion

#region  磁性窗体的计算
        /// <summary>
        /// 磁性窗体的计算
        /// </summary>
        /// <param Frm="Form">窗体</param>
        /// <param e="MouseEventArgs">控件的移动事件</param>
        public void FrmMagnetismCount(Form Frm, int top, int left, int width, int height, string Mforms)
        {
            bool Tem_Magnetism = false;//判断是否有磁性发生
            string Tem_MainForm = "";//临时记录主窗体
            string Tem_AssistForm = "";//临时记录辅窗体

//上面进行磁性窗体
            if ((Frm.Top + Frm.Height - top) <= Example_FSpace && (Frm.Top + Frm.Height - top) >= -Example_FSpace)
            {
                //当一个主窗体不包含辅窗体时
                if ((Frm.Left >= left && Frm.Left <= (left + width)) || ((Frm.Left + Frm.Width) >= left && (Frm.Left + Frm.Width) <= (left + width)))
                {
                    Frm.Top = top - Frm.Height;
                    if ((Frm.Left - left) <= Example_FSpace && (Frm.Left - left) >= -Example_FSpace)
                        Frm.Left = left;
                    Tem_Magnetism = true;
                }
                //当一个主窗体包含辅窗体时
                if (Frm.Left <= left && (Frm.Left + Frm.Width) >= (left + width))
                {
                    Frm.Top = top - Frm.Height;
                    if ((Frm.Left - left) <= Example_FSpace && (Frm.Left - left) >= -Example_FSpace)
                        Frm.Left = left;
                    Tem_Magnetism = true;
                }

}

//下面进行磁性窗体
            if ((Frm.Top - (top + height)) <= Example_FSpace && (Frm.Top - (top + height)) >= -Example_FSpace)
            {
                //当一个主窗体不包含辅窗体时
                if ((Frm.Left >= left && Frm.Left <= (left + width)) || ((Frm.Left + Frm.Width) >= left && (Frm.Left + Frm.Width) <= (left + width)))
                {
                    Frm.Top = top + height;
                    if ((Frm.Left - left) <= Example_FSpace && (Frm.Left - left) >= -Example_FSpace)
                        Frm.Left = left;
                    Tem_Magnetism = true;
                }
                //当一个主窗体包含辅窗体时
                if (Frm.Left <= left && (Frm.Left + Frm.Width) >= (left + width))
                {
                    Frm.Top = top + height;
                    if ((Frm.Left - left) <= Example_FSpace && (Frm.Left - left) >= -Example_FSpace)
                        Frm.Left = left;
                    Tem_Magnetism = true;
                }
            }

//左面进行磁性窗体
            if ((Frm.Left + Frm.Width - left) <= Example_FSpace && (Frm.Left + Frm.Width - left) >= -Example_FSpace)
            {
                //当一个主窗体不包含辅窗体时
                if ((Frm.Top > top && Frm.Top <= (top + height)) || ((Frm.Top + Frm.Height) >= top && (Frm.Top + Frm.Height) <= (top + height)))
                {
                    Frm.Left = left - Frm.Width;
                    if ((Frm.Top - top) <= Example_FSpace && (Frm.Top - top) >= -Example_FSpace)
                        Frm.Top = top;
                    Tem_Magnetism = true;
                }
                //当一个主窗体包含辅窗体时
                if (Frm.Top <= top && (Frm.Top + Frm.Height) >= (top + height))
                {
                    Frm.Left = left - Frm.Width;
                    if ((Frm.Top - top) <= Example_FSpace && (Frm.Top - top) >= -Example_FSpace)
                        Frm.Top = top;
                    Tem_Magnetism = true;
                }
            }

//右面进行磁性窗体
            if ((Frm.Left - (left + width)) <= Example_FSpace && (Frm.Left - (left + width)) >= -Example_FSpace)
            {
                //当一个主窗体不包含辅窗体时
                if ((Frm.Top > top && Frm.Top <= (top + height)) || ((Frm.Top + Frm.Height) >= top && (Frm.Top + Frm.Height) <= (top + height)))
                {
                    Frm.Left = left + width;
                    if ((Frm.Top - top) <= Example_FSpace && (Frm.Top - top) >= -Example_FSpace)
                        Frm.Top = top;
                    Tem_Magnetism = true;
                }
                //当一个主窗体包含辅窗体时
                if (Frm.Top <= top && (Frm.Top + Frm.Height) >= (top + height))
                {
                    Frm.Left = left + width;
                    if ((Frm.Top - top) <= Example_FSpace && (Frm.Top - top) >= -Example_FSpace)
                        Frm.Top = top;
                    Tem_Magnetism = true;
                }
            }
            if (Frm.Name == "Frm_Play")
                Tem_MainForm = "Frm_Play";
            else
                Tem_AssistForm = Frm.Name;
            if (Mforms == "Frm_Play")
                Tem_MainForm = "Frm_Play";
            else
                Tem_AssistForm = Mforms;
            if (Tem_MainForm == "")
            {
                Example_Assistant_AdhereTo = Tem_Magnetism;
            }
            else
            {
                switch (Tem_AssistForm)
                {
                    case "Frm_ListBos":
                        Example_List_AdhereTo = Tem_Magnetism;
                        break;
                    case "Frm_Libratto":
                        Example_Libretto_AdhereTo = Tem_Magnetism;
                        break;
                }
            }
        }
        #endregion

#region  恢复窗体的初始大小
        /// <summary>
        /// 恢复窗体的初始大小(当松开鼠标时，如果窗体的大小小于300*200,恢复初始状态)
        /// </summary>
        /// <param Frm="Form">窗体</param>
        public void FrmScreen_FormerlySize(Form Frm, int PWidth, int PHeight)
        {
            if (Frm.Width < PWidth || Frm.Height < PHeight)
            {
                Frm.Width = PWidth;
                Frm.Height = PHeight;
                //Example_Size = false;
            }
        }
        #endregion

}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace magnetism
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Frm_Play());
        }
    }
}