Wiggling the mouse

"for C# 3.5

without notifyicon therefore you will need to terminate this application in task manager manually

using System;
using System.Drawing;
using System.Windows.Forms;

static class Program
{
static void Main()
{
Timer timer = new Timer();
// timer.Interval = 4 minutes
timer.Interval = (int)(TimeSpan.TicksPerMinute * 4 / TimeSpan.TicksPerMillisecond);
timer.Tick += (sender, args) => { Cursor.Position = new Point(Cursor.Position.X + 1, Cursor.Position.Y + 1); };
timer.Start();
Application.Run();
}
}"

"The ""correct"" way to do this is to respond to the WM_SYSCOMMAND message. In C# this looks something like this:

protected override void WndProc(ref Message m)
{
// Abort screensaver and monitor power-down
const int WM_SYSCOMMAND = 0x0112;
const int SC_MONITOR_POWER = 0xF170;
const int SC_SCREENSAVE = 0xF140;
int WParam = (m.WParam.ToInt32() & 0xFFF0);

if (m.Msg == WM_SYSCOMMAND &&
(WParam == SC_MONITOR_POWER || WParam == SC_SCREENSAVE)) return;

base.WndProc(ref m);
}

According to MSDN, if the screensaver password is enabled by policy on Vista or above, this won't work. Presumably programmatically moving the mouse is also ignored, though I have not tested this."

When I work from home, I do this by tying the mouse cord to a desktop fan which oscillates left to right. It keeps the mouse moving and keeps the workstation from going to sleep.

"Something like this should work (though, you will want to change the interval).

public Form1()
{
InitializeComponent();
Timer Every4Minutes = new Timer();
Every4Minutes.Interval = 10;
Every4Minutes.Tick += new EventHandler(MoveNow);
Every4Minutes.Start();
}

void MoveNow(object sender, EventArgs e)
{
Cursor.Position = new Point(Cursor.Position.X - 1, Cursor.Position.Y - 1);
}"