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C# 实现鼠标拖动图片(象棋棋子拖动效果)

减小字体 增大字体 作者:佚名  来源:本站整理  发布时间:2010-06-25 00:02:40

此功能我用的用途是将象棋游戏之棋子拖动效果。

读者可以将此功能用作其它用途,也可以用作设计其它的游戏.

C# code复制代码
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;

namespace 拖动图片
{
    /// <summary>
    /// Form1 的摘要说明。
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        public System.Windows.Forms.PictureBox[] pictureBox = new PictureBox[2];
        //private System.Windows.Forms.PictureBox pictureBox2;
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Form1()
        {
            //
            // Windows 窗体设计器支持所必需的
            //
            InitializeComponent();
            for (int i = 0; i < 2; i++)
            {
                this.pictureBox[i].MouseUp += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseUp);
                this.pictureBox[i].MouseMove += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseMove);
                this.pictureBox[i].MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseDown);
            }

            //
            // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
            //
        }

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code
        /// <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()
        {
            System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
            this.SuspendLayout();
            this.pictureBox[0] = new System.Windows.Forms.PictureBox();
            this.pictureBox[1] = new System.Windows.Forms.PictureBox();

            //
            // pictureBox1
            //
            this.pictureBox[0].BackColor = System.Drawing.Color.Transparent;
            this.pictureBox[0].Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
            this.pictureBox[0].Location = new System.Drawing.Point(200, 192);
            this.pictureBox[0].Name = "pictureBox1";
            this.pictureBox[0].Size = new System.Drawing.Size(88, 72);
            this.pictureBox[0].SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
            this.pictureBox[0].TabIndex = 0;
            this.pictureBox[0].TabStop = false;
            /*this.pictureBox[1].MouseUp += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseUp);
            this.pictureBox[1].MouseMove += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseMove);
            this.pictureBox[1].MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseDown);*/
            //
            // pictureBox2
            //
            //this.Opacity=0.8;
            this.pictureBox[1].BackColor = System.Drawing.Color.DodgerBlue;
            this.pictureBox[1].Image = ((System.Drawing.Image)(resources.GetObject("pictureBox2.Image")));
            this.pictureBox[1].Location = new System.Drawing.Point(200, 72);
            this.pictureBox[1].Name = "pictureBox2";
            this.pictureBox[1].Size = new System.Drawing.Size(88, 64);
            this.pictureBox[1].SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
            this.pictureBox[1].TabIndex = 1;
            this.pictureBox[1].TabStop = false;
            /*this.pictureBox[2].MouseUp += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseUp);
            this.pictureBox[2].MouseMove += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseMove);
            this.pictureBox[2].MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseDown);
            */

            //
            // Form1
            //
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(432, 348);
            this.Controls.Add(this.pictureBox[0]);
            this.Controls.Add(this.pictureBox[1]);
            this.Name = "Form1";
            this.Text = "Form1";
            this.ResumeLayout(false);

        }
        #endregion

        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.Run(new Form1());
        }

        bool whetherSelected = false;
        Point p = new Point();

        #region 事件代码
        private void pictureBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            whetherSelected = true;
            p.X = Cursor.Position.X;
            p.Y = Cursor.Position.Y;
        }

        private void pictureBox1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            whetherSelected = false;
        }

        private void pictureBox1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            if (whetherSelected == true)
            {
                //加入一个函数,得到是哪个pictureBox
                int index = -1;
                for (int i = 0; i < 2; i++)
                    if (this.pictureBox[i].Capture)
                        index = i;
                this.pictureBox[index].Left = this.pictureBox[index].Left + (Cursor.Position.X - p.X);
                this.pictureBox[index].Top = this.pictureBox[index].Top + (Cursor.Position.Y - p.Y);

                this.pictureBox[1 - index].SendToBack();

                p.X = Cursor.Position.X;
                p.Y = Cursor.Position.Y;
            }
        }

        #endregion

    }
}

Tags:C# 鼠标拖动图片 象棋

作者:佚名
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