Mega Code Archive
Hex View
<![CDATA[
/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Text;
namespace HexView
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class frmHexView : System.Windows.Forms.Form
{
private System.Windows.Forms.MainMenu mainMenu1;
private System.Windows.Forms.MenuItem mnuFileMenu;
private System.Windows.Forms.MenuItem mnuFileOpen;
private System.Windows.Forms.MenuItem mnuFileClose;
private System.Windows.Forms.MenuItem mnuFileExit;
private System.Windows.Forms.MenuItem mnuAboutMenu;
private System.Windows.Forms.MenuItem mnuAboutHexView;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.OpenFileDialog openFileDialog1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public frmHexView()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
textBox1.BackColor = Color.White;
this.openFileDialog1.Filter = "Text files (*.txt)|*.txt|Wide Character Files (*.wcs)|*.wcs|All Files (*.*)|*.*||";
textBox1.Font = new Font ("Courier New", 12);
}
/// <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.mainMenu1 = new System.Windows.Forms.MainMenu();
this.mnuFileMenu = new System.Windows.Forms.MenuItem();
this.mnuFileOpen = new System.Windows.Forms.MenuItem();
this.mnuFileClose = new System.Windows.Forms.MenuItem();
this.mnuFileExit = new System.Windows.Forms.MenuItem();
this.mnuAboutMenu = new System.Windows.Forms.MenuItem();
this.mnuAboutHexView = new System.Windows.Forms.MenuItem();
this.textBox1 = new System.Windows.Forms.TextBox();
this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
this.SuspendLayout();
//
// mainMenu1
//
this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.mnuFileMenu,
this.mnuAboutMenu});
//
// mnuFileMenu
//
this.mnuFileMenu.Index = 0;
this.mnuFileMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.mnuFileOpen,
this.mnuFileClose,
this.mnuFileExit});
this.mnuFileMenu.Text = "File";
//
// mnuFileOpen
//
this.mnuFileOpen.Index = 0;
this.mnuFileOpen.Text = "Open";
this.mnuFileOpen.Click += new System.EventHandler(this.OnFileOpen);
//
// mnuFileClose
//
this.mnuFileClose.Index = 1;
this.mnuFileClose.Text = "Close";
this.mnuFileClose.Click += new System.EventHandler(this.OnFileClose);
//
// mnuFileExit
//
this.mnuFileExit.Index = 2;
this.mnuFileExit.Text = "Exit";
this.mnuFileExit.Click += new System.EventHandler(this.OnFileExit);
//
// mnuAboutMenu
//
this.mnuAboutMenu.Index = 1;
this.mnuAboutMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.mnuAboutHexView});
this.mnuAboutMenu.Text = "About";
//
// mnuAboutHexView
//
this.mnuAboutHexView.Index = 0;
this.mnuAboutHexView.Text = "About HexView";
this.mnuAboutHexView.Click += new System.EventHandler(this.OnAboutAbout);
//
// textBox1
//
this.textBox1.Dock = System.Windows.Forms.DockStyle.Fill;
this.textBox1.Multiline = true;
this.textBox1.Name = "textBox1";
this.textBox1.ReadOnly = true;
this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Both;
this.textBox1.Size = new System.Drawing.Size(592, 317);
this.textBox1.TabIndex = 0;
this.textBox1.Text = "";
this.textBox1.WordWrap = false;
//
// frmHexView
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(592, 317);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.textBox1});
this.Menu = this.mainMenu1;
this.Name = "frmHexView";
this.Text = "Hex View";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new frmHexView());
}
byte [] Data;
private void OnFileOpen(object sender, System.EventArgs e)
{
if (openFileDialog1.ShowDialog () == DialogResult.Cancel)
return;
FileStream strm;
try
{
strm = new FileStream (openFileDialog1.FileName, FileMode.Open, FileAccess.Read);
}
catch (Exception)
{
string str = "Cannot open " + openFileDialog1.FileName + " for reading";
MessageBox.Show (str, "HexView");
return;
}
if (Data != null)
Array.Clear (Data, 0, Data.Length);
Data = new Byte[strm.Length];
strm.Read (Data, 0, (int) strm.Length);
strm.Close();
FillTextBox ();
int index = openFileDialog1.FileName.LastIndexOf ('\\');
this.Text = this.Text + " - " + openFileDialog1.FileName.Substring (index + 1);
}
private void FillTextBox ()
{
textBox1.Text = "";
StringBuilder strb = new StringBuilder ();
StringBuilder text = new StringBuilder ();
char [] ch = new char [1];
for (int x = 0; x < Data.Length; x += 16)
{
text.Length = 0;
strb.Length = 0;
for (int y = 0; y < 16; ++y)
{
if ((x + y) > (Data.Length - 1))
break;
ch[0] = (char) Data[x + y];
strb.AppendFormat ("{0,0:X2} ", (int) ch[0]);
if (((int) ch[0] < 32) || ((int) ch[0] > 127))
ch[0] = '.';
text.Append (ch);
}
text.Append ("\r\n");
while (strb.Length < 52)
strb.Append (" ");
strb.Append (text.ToString());
textBox1.Text += strb.ToString ();
}
textBox1.Select (0, 0);
}
private void OnFileClose(object sender, System.EventArgs e)
{
textBox1.Text = "";
this.Text = "Hex View";
}
private void OnFileExit(object sender, System.EventArgs e)
{
Application.Exit ();
}
private void OnAboutAbout(object sender, System.EventArgs e)
{
About about = new About();
about.ShowDialog();
}
}
/// <summary>
/// Summary description for About.
/// </summary>
public class About : System.Windows.Forms.Form
{
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Button button1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public About()
{
//
// 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.button1 = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(148, 112);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(104, 24);
this.button1.TabIndex = 2;
this.button1.Text = "OK";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// label1
//
this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label1.Location = new System.Drawing.Point(36, 16);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(344, 56);
this.label1.TabIndex = 0;
this.label1.Text = "A Simple Hex Viewer";
this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// label2
//
this.label2.Location = new System.Drawing.Point(36, 80);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(344, 16);
this.label2.TabIndex = 1;
this.label2.Text = "C# Tips and Techniques";
this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
//
// About
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(416, 149);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.button1,
this.label2,
this.label1});
this.Name = "About";
this.Text = "About Hex View";
this.ResumeLayout(false);
}
#endregion
private void button1_Click(object sender, System.EventArgs e)
{
this.Close ();
}
}
}
]]>