C#控件picturebox实现画图功能
本文实例为大家分享了C# picturebox实现画图功能的具体代码,供大家参考,具体内容如下
在Form上添加 一个pictureBox,一个button控件
如图所示:
这样我们的绘画面板就弄好了,把pictureBox的dock属性设置为fill,按键为清屏的作用。
private Point p1, p2;//定义两个点(启点,终点) private static bool【本文来源:迪拜服务器 转载请说明出处】 drawing=false;//设置一个启动标志 private void pictureBox1_MouseDown(object sender, MouseEventArgs e) { p1 = new Point(e.X, e.Y); p2 = new Point(e.X, e.Y); drawing = true; } private void pictureBox1_MouseUp(object sender, MouseEventArgs e) { drawing = false; } private void pictureBox1_MouseMove(object sender, MouseEventArgs e) { Graphics g = pictureBox1.CreateGraphics(); if(e.Button ==MouseButtons.Left) { if (drawing) { //drawing = true; Point currentPoint = new Point(e.X, e.Y); g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;//消除锯齿 g.DrawLine(new Pen(Color.Blue, 2), p2,currentPoint); p2.X = currentPoint.X; p2.Y = currentPoint.Y; } } } //清屏操作 private void button1_Click(object sender, EventArgs e) { Graphics g = pictureBox1.CreateGraphics(); g.Clear(Color.White); }
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持海外IDC网。