怎么实现单击鼠标图片变小双击鼠标图片变大啊~~~~


所以小妹又来求大神相助啦~下面附上我的零零乱乱的代码。。。TAT

  private void pictureBox1_MouseMove(object sender,System.Windows.Forms.MouseEventArgs e)
        {
            this.Text=String.Concat("当前鼠标位置：","(",e.X.ToString(),",",e.Y.ToString(),")");
           /* if (e.Button == MouseButtons.Left)
            {
                pictureBox1.Location = new Point(Cursor.Position.X - (p.X - cp.X), Cursor.Position.Y - (p.Y - cp.Y));
            }*/
        }
        private void pictureBox1_MouseHover(object sender, System.EventArgs e)
        {
            this.Text = "单击左键放大图片，单击右键缩小图片，用光标移动图片";
        }
        private void pictureBox1_MouseLeave(object sender, System.EventArgs e)
        {
            this.Text = "作品信息查询";
        }
        private void pictureBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            
           /*  p.X = Cursor.Position.X;
             p.Y = Cursor.Position.Y;
             cp.X = pictureBox1.Location.X;
             cp.Y = pictureBox1.Location.Y;*/
        
            //double scale = 1.0;
            if (e.Button == MouseButtons.Left) scale = 0.9;
            //if (e.Button == MouseDoubleClick) scale = 0.9;
            pictureBox1.Size = new System.Drawing.Size((int)(pictureBox1.Width * scale), (int)(pictureBox1.Height * scale));
        }
        double scale = 1.0;
        private void pictureBox1_DoubleClick(object sender, EventArgs e)
        {
            
            scale = 1.1; 
 
        }

并不是所有屏蔽掉的语句都不要了。。。哎呀TAT我只是在做实验。。。相信大神懂的。。。。

谢大神。。TAT
[解决办法]

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引用:
我不是大神，所以不懂！
坐上沙发~


帮顶~~~

忽忽~~~~谢谢帮顶的盆友~~~~~

帮你刷刷~~~~ 我觉得嘛 你的标题应该改成小妹有个问题想请问各位大牛，或者大哥什么的，保证你的贴子一个小时内，能建到100楼~ 这群丝怎么还没出场呢？
[解决办法]
鼠标移动事件是看得网上的 不过效果不是很好 建议用windows API来做

public partial class Form7 : Form
    {
        int with, height;

        Point downPoint;

        Rectangle downRectangle;

        Rectangle lastRectangle;

        public Form7()
        {
            InitializeComponent();
        }

        private void Form7_Load(object sender, EventArgs e)
        {
            //获取图片框的宽高
            this.with = this.pictureBox1.Width;
            this.height = this.pictureBox1.Height;
        }
        
        /// <summary>
        /// 单击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void pictureBox1_Click(object sender, EventArgs e)
        {
            //如果当前图片框的宽高大于初始的宽高 说明已放大 则还原初始大小
            if(this.pictureBox1.Width > this.with && this.pictureBox1.Height > this.height)
            {
                this.pictureBox1.Width = this.with;
                this.pictureBox1.Height = this.height;
            }
        }
        
        /// <summary>
        /// 双击放大 宽高各增加50像素
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param> 
 
        private void pictureBox1_DoubleClick(object sender, EventArgs e)
        {
            this.pictureBox1.Width += 50;
            this.pictureBox1.Height += 50;
        }

        private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button != System.Windows.Forms.MouseButtons.Right)
                return;
            downPoint = e.Location;
            downRectangle = new Rectangle(0, 0, this.pictureBox1.Width, this.pictureBox1.Height);
            downRectangle.Offset(this.pictureBox1.PointToScreen(new Point(0, 0)));
            ControlPaint.DrawReversibleFrame(downRectangle, Color.White, FrameStyle.Thick);
            lastRectangle = downRectangle;
        }

        private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button != System.Windows.Forms.MouseButtons.Right)
                return;
            ControlPaint.DrawReversibleFrame(lastRectangle, Color.White, FrameStyle.Thick);
            Rectangle rectangle = downRectangle;
            rectangle.Offset(e.X - downPoint.X, e.Y - downPoint.Y);
            ControlPaint.DrawReversibleFrame(rectangle, Color.White, FrameStyle.Thick);
            lastRectangle = rectangle;
        }

        private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
        {
            if (e.Button != System.Windows.Forms.MouseButtons.Right)
                return;

            ControlPaint.DrawReversibleFrame(lastRectangle, Color.White, FrameStyle.Thick);
            pictureBox1.Location = new Point(((Control)sender).Location.X + e.X - downPoint.X,((Control)sender).Location.Y + e.Y - downPoint.Y);
        }
    }

------解决方案--------------------

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引用:


我想问呢。。。。有没有一个东西。。。可以直接用来控制双击。。。。比如说我举个例子哈。。。。

if (e.Button == MouseDoubleClick)

像这样的可以写在条件句啊类似句子里的。。。。。（当然标红的这个是错的。。我瞎编的）

很有悟性嘛、
MouseDoubleClick你可以想成是一个变量、
当你触发双击事件的时候就把一个值赋给它、
然后if (e.Button == 你赋给的值（MouseDoubleClick）)

[解决办法]
改为用滚轮缩放吧！

先要注重用户体验的交互设计，然后才是编程。
[解决办法]

引用:

引用:引用:引用:触摸板有模拟鼠标滚轮操作的

唔唔唔。。能不能帮忙解决一下按右键移动时。。。图片也会变小的问题。。。
嗯 我去看看

讷讷~~~~谢谢谢谢~~~~

把pictureBox1_Click和pictureBox1_DoubleClick这两个事件去掉 换成下面这两个

/// <summary>
        /// 鼠标单击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void pictureBox1_MouseClick(object sender, MouseEventArgs e)
        {
            //判断是否是按的鼠标左键 避免按到右键误操作
            if (e.Button == System.Windows.Forms.MouseButtons.Left)
            {
                //如果当前图片框的宽高大于初始的宽高 说明已放大 则还原初始大小
                if (this.pictureBox1.Width > this.with && this.pictureBox1.Height > this.height)
                {
                    this.pictureBox1.Width = this.with;
                    this.pictureBox1.Height = this.height;
                }
            }
        }

        /// <summary>
        /// 鼠标双击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void pictureBox1_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            //判断是否是按的鼠标左键
            if (e.Button == System.Windows.Forms.MouseButtons.Left)
            {
                this.pictureBox1.Width += 50; 
 
                this.pictureBox1.Height += 50;
            }
        }