/*
Professional Windows GUI Programming Using C#
by Jay Glynn, Csaba Torok, Richard Conway, Wahid Choudhury,
Zach Greenvoss, Shripad Kulkarni, Neil Whitlow
Publisher: Peer Information
ISBN: 1861007663
*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace ControlModifier
{
/// <summary>
/// Summary description for ControlModifier.
/// </summary>
public class ControlModifier : System.Windows.Forms.Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public ControlModifier()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
System.Timers.Timer t = new System.Timers.Timer(10000);
t.Elapsed += new System.Timers.ElapsedEventHandler(time);
t.Start();
}
void time(object sender, System.Timers.ElapsedEventArgs e)
{
MessageBox.Show(ControlModifier.ModifierKeys.ToString());
}
/// <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.components = new System.ComponentModel.Container();
this.Size = new System.Drawing.Size(300,300);
this.Text = "ControlModifier";
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new ControlModifier());
}
}
}
ASP.NET & Csharp (C#)
ASP.NET & Csharp (C#) , Here you can find my posts about .NET c# .
Demonstrates using the System.Timers.Timer class 2
/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
// Timer.cs -- demonstrates using the System.Timers.Timer class.
//
// Compile this program with the following command line:
// C:>csc Timer.cs
using System;
using System.Windows.Forms;
using System.Timers;
namespace nsDelegates
{
public class TimerAndDialog
{
static int countdown = 10;
static System.Timers.Timer timer;
static public void Main ()
{
// Create the timer object.
timer = new System.Timers.Timer (1000);
// Make it repeat. Setting this to false will cause just one event.
timer.AutoReset = true;
// Assign the delegate method.
timer.Elapsed += new ElapsedEventHandler(ProcessTimerEvent);
// Start the timer.
timer.Start ();
// Just wait.
MessageBox.Show ("Waiting for countdown", "Text");
}
// Method assigned to the timer delegate.
private static void ProcessTimerEvent (Object obj, ElapsedEventArgs e)
{
--countdown;
// If countdown has reached 0, it's time to exit.
if (countdown == 0)
{
timer.Close();
Environment.Exit (0);
}
// Make a string for a new message box.
string sigtime = e.SignalTime.ToString ();
string str = "Signal time is " + sigtime.Substring (sigtime.IndexOf(" ") + 1);
str += "
Countdown = " + countdown;
// Show a message box.
MessageBox.Show (str, "Timer Thread");
}
}
}
Demonstrates using the System.Threading.Timer object
/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
// ThrdTime.cs -- Demonstrates using the System.Threading.Timer object.
//
// Compile this program with the following command line:
// C:>csc ThrdTime.cs
using System;
using System.Windows.Forms;
using System.Threading;
namespace nsDelegates
{
public class ThrdTime
{
static int countdown = 10;
static System.Threading.Timer timer;
static public void Main ()
{
// Create the timer callback delegate.
System.Threading.TimerCallback cb = new System.Threading.TimerCallback (ProcessTimerEvent);
// Create the object for the timer.
clsTime time = new clsTime ();
// Create the timer. It is autostart, so creating the timer will start it.
timer = new System.Threading.Timer (cb, time, 4000, 1000);
// Blessed are those who wait.
MessageBox.Show ("Waiting for countdown", "Text");
}
// Callback method for the timer. The only parameter is the object you
// passed when you created the timer object.
private static void ProcessTimerEvent (object obj)
{
--countdown;
// If countdown is complete, exit the program.
if (countdown == 0)
{
timer.Dispose ();
Environment.Exit (0);
}
string str = "";
// Cast the obj argument to clsTime.
if (obj is clsTime)
{
clsTime time = (clsTime) obj;
str = time.GetTimeString ();
}
str += "
Countdown = " + countdown;
MessageBox.Show (str, "Timer Thread");
}
}
// Define a class to use as the object argument for the timer.
class clsTime
{
public string GetTimeString ()
{
string str = DateTime.Now.ToString ();
int index = str.IndexOf(" ");
return (str.Substring (index + 1));
}
}
}
Using TimerCallback
using System;
using System.Threading;
class TimePrinter {
static void PrintTime(object state) {
Console.WriteLine("Time is: {0}, Param is: {1}", DateTime.Now.ToLongTimeString(), state.ToString());
}
static void Main(string[] args) {
TimerCallback timeCB = new TimerCallback(PrintTime);
Timer t = new Timer(
timeCB, // The TimerCallback delegate type.
"Hi", // Any info to pass into the called method.
0, // Amount of time to wait before starting.
1000); // Interval of time between calls.
}
}
use Asterisk sound from SystemSounds
using System;
using System.Media;
class MainClass {
public static void Main() {
// Play the sound associated with the Asterisk event
SystemSounds.Asterisk.Play();
}
}
Print all System Information
using System;
using System.Drawing;
using System.Windows.Forms;
class SysInfoStrings
{
public static string[] Values
{
get
{
return new string[]
{
SystemInformation.ArrangeDirection.ToString(),
SystemInformation.ArrangeStartingPosition.ToString(),
SystemInformation.BootMode.ToString(),
SystemInformation.Border3DSize.ToString(),
SystemInformation.BorderSize.ToString(),
SystemInformation.CaptionButtonSize.ToString(),
SystemInformation.CaptionHeight.ToString(),
SystemInformation.ComputerName,
SystemInformation.CursorSize.ToString(),
SystemInformation.DbcsEnabled.ToString(),
SystemInformation.DebugOS.ToString(),
SystemInformation.DoubleClickSize.ToString(),
SystemInformation.DoubleClickTime.ToString(),
SystemInformation.DragFullWindows.ToString(),
SystemInformation.DragSize.ToString(),
SystemInformation.FixedFrameBorderSize.ToString(),
SystemInformation.FrameBorderSize.ToString(),
SystemInformation.HighContrast.ToString(),
SystemInformation.HorizontalScrollBarArrowWidth.ToString(),
SystemInformation.HorizontalScrollBarHeight.ToString(),
SystemInformation.HorizontalScrollBarThumbWidth.ToString(),
SystemInformation.IconSize.ToString(),
SystemInformation.IconSpacingSize.ToString(),
SystemInformation.KanjiWindowHeight.ToString(),
SystemInformation.MaxWindowTrackSize.ToString(),
SystemInformation.MenuButtonSize.ToString(),
SystemInformation.MenuCheckSize.ToString(),
SystemInformation.MenuFont.ToString(),
SystemInformation.MenuHeight.ToString(),
SystemInformation.MidEastEnabled.ToString(),
SystemInformation.MinimizedWindowSize.ToString(),
SystemInformation.MinimizedWindowSpacingSize.ToString(),
SystemInformation.MinimumWindowSize.ToString(),
SystemInformation.MinWindowTrackSize.ToString(),
SystemInformation.MonitorCount.ToString(),
SystemInformation.MonitorsSameDisplayFormat.ToString(),
SystemInformation.MouseButtons.ToString(),
SystemInformation.MouseButtonsSwapped.ToString(),
SystemInformation.MousePresent.ToString(),
SystemInformation.MouseWheelPresent.ToString(),
SystemInformation.MouseWheelScrollLines.ToString(),
SystemInformation.NativeMouseWheelSupport.ToString(),
SystemInformation.Network.ToString(),
SystemInformation.PenWindows.ToString(),
SystemInformation.PrimaryMonitorMaximizedWindowSize.ToString(),
SystemInformation.PrimaryMonitorSize.ToString(),
SystemInformation.RightAlignedMenus.ToString(),
SystemInformation.Secure.ToString(),
SystemInformation.ShowSounds.ToString(),
SystemInformation.SmallIconSize.ToString(),
SystemInformation.ToolWindowCaptionButtonSize.ToString(),
SystemInformation.ToolWindowCaptionHeight.ToString(),
SystemInformation.UserDomainName,
SystemInformation.UserInteractive.ToString(),
SystemInformation.UserName,
SystemInformation.VerticalScrollBarArrowHeight.ToString(),
SystemInformation.VerticalScrollBarThumbHeight.ToString(),
SystemInformation.VerticalScrollBarWidth.ToString(),
SystemInformation.VirtualScreen.ToString(),
SystemInformation.WorkingArea.ToString(),
};
}
}
}
SystemInformation.PrimaryMonitor
using System;
using System.Drawing;
using System.Windows.Forms;
class ScribbleWithBitmap: Form
{
bool bTracking;
Point ptLast;
Bitmap bitmap;
Graphics grfxBm;
public static void Main()
{
Application.Run(new ScribbleWithBitmap());
}
public ScribbleWithBitmap()
{
Text = "Scribble with Bitmap";
Size size = SystemInformation.PrimaryMonitorMaximizedWindowSize;
bitmap = new Bitmap(size.Width, size.Height);
grfxBm = Graphics.FromImage(bitmap);
grfxBm.Clear(BackColor);
}
protected override void OnMouseDown(MouseEventArgs mea)
{
if (mea.Button != MouseButtons.Left)
return;
ptLast = new Point(mea.X, mea.Y);
bTracking = true;
}
protected override void OnMouseMove(MouseEventArgs mea)
{
if (!bTracking)
return;
Point ptNew = new Point(mea.X, mea.Y);
Pen pen = new Pen(ForeColor);
Graphics grfx = CreateGraphics();
grfx.DrawLine(pen, ptLast, ptNew);
grfx.Dispose();
grfxBm.DrawLine(pen, ptLast, ptNew);
ptLast = ptNew;
}
protected override void OnMouseUp(MouseEventArgs mea)
{
bTracking = false;
}
protected override void OnPaint(PaintEventArgs pea)
{
Graphics grfx = pea.Graphics;
grfx.DrawImage(bitmap, 0, 0, bitmap.Width, bitmap.Height);
}
}