#region README
//_____________________________________________________________________________
//
//Sample C# code, .NET Framework 1.1, contributed to the Info-Zip project by
//Adrian Maull, April 2005.
//
//If you have questions or comments, contact me at adrian.maull@sprintpcs.com. Though
//I will try to respond to coments/questions, I do not guarantee such response.
//
//THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
//KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
//IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
//PARTICULAR PURPOSE.
//
//_____________________________________________________________________________
#endregion
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace CSharpInfoZip_UnZipSample
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button btnUnzipArchive;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Label lblProgress;
private System.Windows.Forms.ProgressBar prgBar;
//Define the Unzip object
Unzip m_Unzip
= new Unzip
(); private ulong m_CurrentSize;
private System.Windows.Forms.Button btnListZipFiles;
private CheckBox chkOverwriteAll;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.btnUnzipArchive = new System.Windows.Forms.Button(); this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog(); this.label1 = new System.Windows.Forms.Label(); this.textBox1 = new System.Windows.Forms.TextBox(); this.lblProgress = new System.Windows.Forms.Label(); this.prgBar = new System.Windows.Forms.ProgressBar(); this.btnListZipFiles = new System.Windows.Forms.Button(); this.chkOverwriteAll = new System.Windows.Forms.CheckBox(); this.SuspendLayout();
//
// btnUnzipArchive
//
this.btnUnzipArchive.Location = new System.Drawing.Point(8,
24); this.btnUnzipArchive.Name = "btnUnzipArchive";
this.btnUnzipArchive.Size = new System.Drawing.Size(96,
24); this.btnUnzipArchive.TabIndex = 0;
this.btnUnzipArchive.Text = "Unzip archive...";
this.btnUnzipArchive.Click += new System.EventHandler(this.btnUnzipArchive_Click); //
// label1
//
this.label1.Location = new System.Drawing.Point(8,
64); this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(184,
16); this.label1.TabIndex = 1;
this.label1.Text = "Unzip DLL Print callback message:";
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(8,
80); this.textBox1.Multiline = true;
this.textBox1.Name = "textBox1";
this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
this.textBox1.Size = new System.Drawing.Size(464,
120); this.textBox1.TabIndex = 2;
//
// lblProgress
//
this.lblProgress.Location = new System.Drawing.Point(8,
208); this.lblProgress.Name = "lblProgress";
this.lblProgress.Size = new System.Drawing.Size(216,
16); this.lblProgress.TabIndex = 3;
//
// prgBar
//
this.prgBar.Location = new System.Drawing.Point(8,
224); this.prgBar.Name = "prgBar";
this.prgBar.Size = new System.Drawing.Size(216,
16); this.prgBar.TabIndex = 4;
//
// btnListZipFiles
//
this.btnListZipFiles.Location = new System.Drawing.Point(120,
24); this.btnListZipFiles.Name = "btnListZipFiles";
this.btnListZipFiles.Size = new System.Drawing.Size(96,
24); this.btnListZipFiles.TabIndex = 5;
this.btnListZipFiles.Text = "List zip files...";
this.btnListZipFiles.Click += new System.EventHandler(this.btnListZipFiles_Click); //
// chkOverwriteAll
//
this.chkOverwriteAll.AutoSize = true;
this.chkOverwriteAll.Location = new System.Drawing.Point(255,
29); this.chkOverwriteAll.Name = "chkOverwriteAll";
this.chkOverwriteAll.Size = new System.Drawing.Size(177,
17); this.chkOverwriteAll.TabIndex = 6;
this.chkOverwriteAll.Text = "Overwrite all files without prompt";
this.chkOverwriteAll.UseVisualStyleBackColor = true;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5,
13); this.ClientSize = new System.Drawing.Size(480,
254); this.Controls.Add(this.chkOverwriteAll);
this.Controls.Add(this.btnListZipFiles);
this.Controls.Add(this.prgBar);
this.Controls.Add(this.lblProgress);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.label1);
this.Controls.Add(this.btnUnzipArchive);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Form1";
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application
.Run(new Form1
()); }
#region Event Handlers
private void btnUnzipArchive_Click(object sender, System.EventArgs e)
{
openFileDialog1.ShowDialog();
string file = openFileDialog1.FileName;
if (file == null | file == string.Empty) return;
//Clear the DLL messages output area
m_CurrentSize = 0;
prgBar.Value = prgBar.Minimum;
lblProgress.Text = "";
textBox1.Text = "";
//Instantiate the Unzip object
//NOTE:
//There are many unzip options. This sample just demonstrates basic unzip options.
//Consult the InfoZip documentation for more option information.
//Set the Unzip object properties
m_Unzip.ZipFileName = file;
m_Unzip.HonorDirectories = HonorDirectoriesEnum.True;
m_Unzip.ExtractOrList = ExtractOrListEnum.Extract;
//This option sets the DLL to display only the archive comment and
//then exit immediately.
//m_Unzip.DisplayComment = DisplayCommentEnum.True;
//This option switches the DLL into "verbose ZipInfo" mode. The
//DLL extracts nothing, but instead prints out a verbose technical list
//of the content of the Zip archive central directory.
//This option works now, but gets terribly slow when applied to archives
//with a large number of entries.
//m_Unzip.VerboseZI = VerboseZIEnum.True;
{
m_Unzip.OverWriteFiles = OverWriteFilesEnum.True;
m_Unzip.PromptToOverWrite = PromptToOverWriteEnum.NotRequired;
}
else
{
m_Unzip.OverWriteFiles = OverWriteFilesEnum.False;
m_Unzip.PromptToOverWrite = PromptToOverWriteEnum.Required;
}
//NOTE:
//Directory where the unzipped files are stored. Change this as appropriate
m_Unzip.ExtractDirectory = @"c:\temp\unzip";
//Wire the event handlers to receive the events from the Unzip class
m_Unzip
.ReceivePrintMessage +=new UnZipDLLPrintMessageEventHandler
(unZip_ReceivePrintMessage
); m_Unzip
.ReceiveServiceMessage +=new UnZipDLLServiceMessageEventHandler
(unZip_ReceiveServiceMessage
);
//Unzip the files
int ret = m_Unzip.UnZipFiles();
//Examine the return code
MessageBox.Show("Done. Return Code: " + ret.ToString());
}
private void btnListZipFiles_Click(object sender, System.EventArgs e)
{
openFileDialog1.ShowDialog();
string file = openFileDialog1.FileName;
if (file == null | file == string.Empty) return;
//Clear the DLL messages output area
prgBar.Value = prgBar.Minimum;
lblProgress.Text = "";
textBox1.Text = "";
//Instantiate the Unzip object
//NOTE:
//There are many unzip options. This sample just demonstrates basic unzip options.
//Consult the InfoZip documentation for more option information.
//Set the Unzip object properties
m_Unzip.ZipFileName = file;
m_Unzip.HonorDirectories = HonorDirectoriesEnum.True;
m_Unzip.ExtractOrList = ExtractOrListEnum.ListContents;
//Wire the event handlers to receive the events from the Unzip class
m_Unzip
.ReceivePrintMessage +=new UnZipDLLPrintMessageEventHandler
(unZip_ReceivePrintMessage
); m_Unzip
.ReceiveServiceMessage +=new UnZipDLLServiceMessageEventHandler
(unZip_ReceiveServiceMessage
);
//Unzip the files
ZipFileEntries zfes = m_Unzip.GetZipFileContents();
//Show the file contents
frmShowContents frm
= new frmShowContents
(); frm.UnzippedFileCollection = zfes;
//WORK AROUND:
frm.Comment = m_Unzip.GetZipFileComment();
frm.ShowDialog(this);
//Examine the return code
MessageBox.Show("Done.");
}
private void unZip_ReceivePrintMessage(object sender, UnZipDLLPrintMessageEventArgs e)
{
textBox1.Text += e.PrintMessage.Replace("\n", Environment.NewLine);
Application.DoEvents();
}
private int unZip_ReceiveServiceMessage(object sender, UnZipDLLServiceMessageEventArgs e)
{
m_CurrentSize += e.SizeOfFileEntry;
prgBar.Value = Convert.ToInt32(100 * Convert.ToDouble(m_CurrentSize)
/ Convert.ToDouble(e.ZipFileSize));
lblProgress.Text = "Unzipping " + m_CurrentSize.ToString("N0") + " of " +
e.ZipFileSize.ToString("N0") + " bytes.";
Application.DoEvents();
return 0;
}
#endregion
}
}