c#如何wmf图片转换成png图片_C#图片格式转换(支持bmp/gif/jpeg/png/tiff/wmf文件)
【实例简介】
【实例截图】
【核心代码】
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace Image
{
///
/// Form1 的摘要说明。
///
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
private System.Windows.Forms.SaveFileDialog saveFileDialog1;
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.RadioButton radioButton1;
private System.Windows.Forms.RadioButton radioButton2;
private System.Windows.Forms.RadioButton radioButton3;
private System.Windows.Forms.RadioButton radioButton4;
private System.Windows.Forms.RadioButton radioButton5;
private System.Windows.Forms.RadioButton radioButton6;
///
/// 必需的设计器变量。
///
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
///
/// 清理所有正在使用的资源。
///
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
///
/// 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。
///
private void InitializeComponent()
{
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.radioButton6 = new System.Windows.Forms.RadioButton();
this.radioButton5 = new System.Windows.Forms.RadioButton();
this.radioButton4 = new System.Windows.Forms.RadioButton();
this.radioButton3 = new System.Windows.Forms.RadioButton();
this.radioButton2 = new System.Windows.Forms.RadioButton();
this.radioButton1 = new System.Windows.Forms.RadioButton();
this.groupBox1.SuspendLayout();
this.SuspendLayout();
//
// pictureBox1
//
this.pictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.pictureBox1.Location = new System.Drawing.Point(8, 8);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(280, 222);
this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
//
// button1
//
this.button1.Location = new System.Drawing.Point(296, 8);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(96, 23);
this.button1.TabIndex = 1;
this.button1.Text = "浏览图像";
this.button1.Click = new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Location = new System.Drawing.Point(296, 32);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(96, 23);
this.button2.TabIndex = 2;
this.button2.Text = "保存图像";
this.button2.Click = new System.EventHandler(this.button2_Click);
//
// openFileDialog1
//
this.openFileDialog1.Filter = "Image files (JPeg, Gif, Bmp, etc.)|*.jpg;*.jpeg;*.gif;*.bmp;*.tif; *.tiff; *.png|"
" JPeg files (*.jpg;*.jpeg)|*.jpg;*.jpeg |GIF files (*.gif)|*.gif |BMP files (*.b"
"mp)|*.bmp|Tiff files (*.tif;*.tiff)|*.tif;*.tiff|Png files (*.png)| *.png |All f"
"iles (*.*)|*.*";
//
// groupBox1
//
this.groupBox1.Controls.Add(this.radioButton6);
this.groupBox1.Controls.Add(this.radioButton5);
this.groupBox1.Controls.Add(this.radioButton4);
this.groupBox1.Controls.Add(this.radioButton3);
this.groupBox1.Controls.Add(this.radioButton2);
this.groupBox1.Controls.Add(this.radioButton1);
this.groupBox1.Location = new System.Drawing.Point(296, 64);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(96, 168);
this.groupBox1.TabIndex = 3;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "图像保存格式";
//
// radioButton6
//
this.radioButton6.Location = new System.Drawing.Point(8, 144);
this.radioButton6.Name = "radioButton6";
this.radioButton6.Size = new System.Drawing.Size(72, 16);
this.radioButton6.TabIndex = 5;
this.radioButton6.Text = "Wmf格式";
//
// radioButton5
//
this.radioButton5.Location = new System.Drawing.Point(8, 120);
this.radioButton5.Name = "radioButton5";
this.radioButton5.Size = new System.Drawing.Size(72, 16);
this.radioButton5.TabIndex = 4;
this.radioButton5.Text = "Tiff格式";
//
// radioButton4
//
this.radioButton4.Location = new System.Drawing.Point(8, 96);
this.radioButton4.Name = "radioButton4";
this.radioButton4.Size = new System.Drawing.Size(72, 16);
this.radioButton4.TabIndex = 3;
this.radioButton4.Text = "Png格式";
//
// radioButton3
//
this.radioButton3.Location = new System.Drawing.Point(8, 72);
this.radioButton3.Name = "radioButton3";
this.radioButton3.Size = new System.Drawing.Size(72, 16);
this.radioButton3.TabIndex = 2;
this.radioButton3.Text = "Jpeg格式";
//
// radioButton2
//
this.radioButton2.Checked = true;
this.radioButton2.Location = new System.Drawing.Point(8, 48);
this.radioButton2.Name = "radioButton2";
this.radioButton2.Size = new System.Drawing.Size(72, 16);
this.radioButton2.TabIndex = 1;
this.radioButton2.TabStop = true;
this.radioButton2.Text = "Gif格式";
//
// radioButton1
//
this.radioButton1.Location = new System.Drawing.Point(8, 24);
this.radioButton1.Name = "radioButton1";
this.radioButton1.Size = new System.Drawing.Size(72, 16);
this.radioButton1.TabIndex = 0;
this.radioButton1.Text = "Bmp格式";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(400, 238);
this.Controls.Add(this.groupBox1);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.pictureBox1);
this.MaximizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "演示图像文件格式转换";
this.groupBox1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
///
/// 应用程序的主入口点。
///
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{//打开图像文件并显示
this.openFileDialog1.ShowDialog();
if(this.openFileDialog1.FileName.Trim()=="")
return;
try
{
this.pictureBox1.Image=System.Drawing.Bitmap.FromFile(this.openFileDialog1.FileName);
}
catch(Exception Err)
{
MessageBox.Show(this,"打开图像文件错误!","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
}
private void button2_Click(object sender, System.EventArgs e)
{//转换图像文件格式
this.saveFileDialog1.ShowDialog();
System.String StrFileName=this.saveFileDialog1.FileName;
if(StrFileName.Trim()=="")
return;
try
{
if(this.radioButton1.Checked)
{
this.pictureBox1.Image.Save(StrFileName ".bmp",System.Drawing.Imaging.ImageFormat.Bmp);
}
if(this.radioButton2.Checked)
{
this.pictureBox1.Image.Save(StrFileName ".gif",System.Drawing.Imaging.ImageFormat.Gif);
}
if(this.radioButton3.Checked)
{
this.pictureBox1.Image.Save(StrFileName ".jpg",System.Drawing.Imaging.ImageFormat.Jpeg);
}
if(this.radioButton4.Checked)
{
this.pictureBox1.Image.Save(StrFileName ".png",System.Drawing.Imaging.ImageFormat.Png);
}
if(this.radioButton5.Checked)
{
this.pictureBox1.Image.Save(StrFileName ".tif",System.Drawing.Imaging.ImageFormat.Tiff);
}
if(this.radioButton6.Checked)
{
this.pictureBox1.Image.Save(StrFileName ".wmf",System.Drawing.Imaging.ImageFormat.Wmf);
}
}
catch(Exception Error)
{
MessageBox.Show(this,"保存图像文件时发生错误!","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
}
}
}
}
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