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Sticky Notepad

Posted by Saurabh Nandu Articles | Windows Forms C# March 05, 2001
I wanted to experiment with writing a program that would run from the "System Tray" of window (that's where you have the date displayed...) since that's not possible with pure Java.
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Introduction

I am a Java programmer and hence I wanted to experiment with writing a program that would run from the "System Tray" of window (that's where you have the date displayed...) since that's not possible with pure Java.

So I have built a Application which uses "TrayIcon" component of WinForms to show the run the program from the System Tray.

Point To Remember 

Don't forget to copy "sticky.txt" to the directory in which you will be running the program from.

Source Code

sticky.cs: The Sticky Notepad.

namespace stickynote
{
//Import the necessary Assemblies
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.WinForms;
using System.Data;
using System.IO ;
/// <summary>
/// The class to demonstrate a Sticky Pad
/// </summary>
public class sticky : System.WinForms.Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components;
private System.WinForms.MenuItem menuItem4;
private System.WinForms.MenuItem menuItem3;
private System.WinForms.MenuItem menuItem2;
private System.WinForms.MenuItem menuItem1;
private System.WinForms.ContextMenu contextMenu1;
//TrayIcon is used to place the Application in the System Tray
private System.WinForms.TrayIcon StickyNote;
private System.WinForms.RichTextBox tbox;
/// <summary>
/// The Constructor
/// We Call 2 methods here
/// InitilizeComponent - to Initialize the winform
/// read - to read the data from the text file
/// </summary>
public sticky()
{
InitializeComponent();
read();
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
public override void Dispose()
{
//Before Disposing Save the Text
save();
this.StickyNote.Dispose();
base.Dispose();
components.Dispose();
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
System.Resources.ResourceManager resources =
new System.Resources.ResourceManager (typeof(sticky));
this.components = new System.ComponentModel.Container ();
this.tbox = new System.WinForms.RichTextBox ();
//Code for the context menu
this.contextMenu1 = new System.WinForms.ContextMenu ();
this.menuItem4 = new System.WinForms.MenuItem ();
this.menuItem2 = new System.WinForms.MenuItem ();
this.menuItem1 = new System.WinForms.MenuItem ();
this.StickyNote = new System.WinForms.TrayIcon ();
this.menuItem3 = new System.WinForms.MenuItem ();
tbox.AutoWordSelection =
true;
tbox.Size =
new System.Drawing.Size (194, 156);
tbox.ContextMenu =
this.contextMenu1;
tbox.TabIndex = 1;
tbox.ScrollBars = System.WinForms.RichTextBoxScrollBars.Vertical;
tbox.Dock = System.WinForms.DockStyle.Fill;
tbox.CausesValidation =
false;
tbox.TabStop =
false;
tbox.BackColor = System.Drawing.Color.Orange;
contextMenu1.MenuItems.All =
new System.WinForms.MenuItem[4] {this.menuItem1, this.menuItem2, this.menuItem3, this.menuItem4};
menuItem4.Text = "Exit";
menuItem4.Index = 3;
menuItem4.Click +=
new System.EventHandler (this.Exit);
menuItem2.Text = "Hide";
menuItem2.Index = 1;
menuItem2.Click +=
new System.EventHandler (this.minimise);
menuItem1.Text = "Show";
menuItem1.Index = 0;
menuItem1.Click +=
new System.EventHandler (this.maximise);
menuItem3.Text = "Help";
menuItem3.Index = 2;
menuItem3.Click +=
new System.EventHandler (this.helpme);
//Code for the TrayIcon
StickyNote.Text = "StickyNote";
StickyNote.Visible =
true;
StickyNote.Icon = (System.Drawing.Icon) resources.GetObject ("StickyNote.Icon");
StickyNote.ContextMenu =
this.contextMenu1;
this.Text = "Sticky Note, By Saurabh Nandu";
this.MaximizeBox = false;
this.AutoScaleBaseSize = new System.Drawing.Size (5, 13);
this.BorderStyle = System.WinForms.FormBorderStyle.FixedSingle;
this.ContextMenu = this.contextMenu1;
//Set the initial state to minimized
this.WindowState = System.WinForms.FormWindowState.Minimized;
//Do not show in the Task Bar
this.ShowInTaskbar = false;
this.Icon = (System.Drawing.Icon) resources.GetObject ("$this.Icon");
this.CausesValidation = false;
//Show the WinForm above all other Applications
this.TopMost = true;
//Hide the Control Box (The box containing the (Maximize, Minimize, and Close buttons)
this.ControlBox = false;
this.BackColor = System.Drawing.Color.Orange;
this.ClientSize = new System.Drawing.Size (194, 156);
this.Controls.Add (this.tbox);
}
/// <summary>
/// This function is called when "Hide" is selected from the context menu
/// </summary>
protected void minimise (object sender, System.EventArgs e)
{
if(this.Visible)
{
//Hide the Application
this.Hide();
}
}
/// <summary>
/// This method is called when "Show" is selected from the context Menu
/// </summary>
protected void maximise (object sender, System.EventArgs e)
{
//Maximize the Window
//Why??? since we are initially setting the WinForms
//State to "Minimized" in the constructor
this.WindowState = System.WinForms.FormWindowState.Normal;
if(!this.Visible)
{
//If the Window is hidded
//Show it
this.Show();
}
}
/// <summary>
/// Method called when "Help" button clicked
/// </summary>
protected void helpme (object sender, System.EventArgs e)
{
MessageBox.Show("Sticky Note Made by Saurabh Nandu, saurabhn@webveda.com") ;
}
/// <summary>
/// Called when "Exit" is selected from the context menu.
/// </summary>
protected void Exit (object sender, System.EventArgs e)
{
//Call the Dispose Method
this.Close();
}
/// <summary>
/// This method is called from the destructor (Dispose)
/// It saves the Data to the Text File
/// </summary>
protected void save()
{
//Open a File Stream
FileStream fout = new FileStream("sticky.txt", FileMode.Open, FileAccess.Write, FileShare.ReadWrite) ;
//Get a StreamWriter , since its easy to write string with it.
StreamWriter sw = new StreamWriter(fout) ;
//Write the contents for the RichTextBox
sw.Write(tbox.Text);
//Close the Streams
sw.Close();
fout.Close();
}
/// <summary>
/// This method is called from the constructor
/// It read the text from the Text file
/// and displays it in the RichTextBox
/// </summary>
protected void read()
{
//Open the streams to the file
FileStream fin = new FileStream("sticky.txt", FileMode.Open, FileAccess.Read, FileShare.ReadWrite) ;
StreamReader tr =
new StreamReader(fin) ;
//Read the data, I use "ReadToEnd" cause with it you
//can read the whole file in one shot !
tbox.Text = tr.ReadToEnd();
//Close the streams
tr.Close();
fin.Close();
}
/// <summary>
/// The main entry point for the application.
/// </summary>
public static void Main(string[] args)
{
Application.Run(
new sticky());
}
}
}

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