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   源码介绍

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图片旋转放大透明

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 ImageDemo
{
    public partial class Demo : Form
    {
        public Demo()
        {
            InitializeComponent();
            Rest();
        }

       

        private void trackBar1_ValueChanged(object sender, EventArgs e)
        {
            ImageBox.Zoom = trackBar1.Value;
            label1.Text = string.Format("缩放:{0}%", trackBar1.Value);
        }

        private void trackBar2_ValueChanged(object sender, EventArgs e)
        {
            ImageBox.RotationAngle = trackBar2.Value;
            label2.Text = string.Format("旋转:{0}度", trackBar2.Value);
        }

        private void trackBar3_ValueChanged(object sender, EventArgs e)
        {
            ImageBox.Alpha = (byte)trackBar3.Value;
            label3.Text = string.Format("透明度:{0}", trackBar3.Value);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Rest();
        }

        private void Rest()
        {
            trackBar1.Value = 100;
            trackBar2.Value = 0;
            trackBar3.Value = 255;
            radioButton3.Checked = true;
            ImageBox.RotatePoint = new Point(ImageBox.Width / 2, ImageBox.Height / 2);
        }

        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked)
            {
                ImageBox.FlipModeStyle = FlipModeStyle.FlipX;
            }
        }

        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton2.Checked)
            {
                ImageBox.FlipModeStyle = FlipModeStyle.FlipY;
            }
        }

        private void radioButton3_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton3.Checked)
            {
                ImageBox.FlipModeStyle = FlipModeStyle.Normal;
            }
        }

        private void radioButton4_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton4.Checked)
            {
                ImageBox.FlipModeStyle = FlipModeStyle.FlipXY;
            }
        }
    }
}