C#图像格式转换工具

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace 图像格式转换工具
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
this.skinEngine1.SkinFile = "MidsummerColor2.ssk";
}
string url = string.Empty;
private void btnOpen_Click(object sender, EventArgs e)
{
this.pictureBox1.Visible = true;
this.openFileDialog1.ShowDialog();
url = this.openFileDialog1.FileName;
if (url != "")
{
pictureBox1.Image = Image.FromFile(url);
}
}

private void btnSave_Click(object sender, EventArgs e)
{
if (url == "")
{
MessageBox.Show("请选择需要转换的图片!","提示",MessageBoxButtons.OK,MessageBoxIcon.Warning);
}
else
{
this.saveFileDialog1.ShowDialog();
if (this.rbtnBMP.Checked == true)
{
this.pictureBox1.Image.Save(this.saveFileDialog1.FileName + ".BMP",
System.Drawing.Imaging.ImageFormat.Bmp);
}
if (this.rbtnGIF.Checked == true)
{
this.pictureBox1.Image.Save(this.saveFileDialog1.FileName + ".GIF",
System.Drawing.Imaging.ImageFormat.Gif);
}
if (this.rbtnJPG.Checked == true)
{
this.pictureBox1.Image.Save(this.saveFileDialog1.FileName + ".JPG",
System.Drawing.Imaging.ImageFormat.Jpeg);
}
if (this.rbtnPNG.Checked == true)
{
this.pictureBox1.Image.Save(this.saveFileDialog1.FileName + ".PNG",
System.Drawing.Imaging.ImageFormat.Png);
}
if (this.rbtnicon.Checked == true)
{
this.pictureBox1.Image.Save(this.saveFileDialog1.FileName + ".icon",
System.Drawing.Imaging.ImageFormat.Icon);
}
if (this.rbtnwmf.Checked == true)
{
this.pictureBox1.Image.Save(this.saveFileDialog1.FileName + ".wmf",
System.Drawing.Imaging.ImageFormat.Wmf);
}
}
}
private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
{
if(this.WindowState==FormWindowState.Minimized)
{
this.WindowState=FormWindowState.Normal;
this.Activate();
}
}

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
Application.Exit();
}
}
}