Write your screensaver yourself.

The screensaver is very simple, it's just an application with an extension of ". SCR" that runs in full screen and meets certain rules, and can be developed in any language.
The screensaver is placed under the system's System32 directory and is automatically invoked by the system. When the system performs a screensaver, it will require a different command parameter to implement different functions, such as normal operation, preview, Setup, etc. As long as we implement different functions for different parameters in the program, our program can be called by the system normally. All of the command parameters and their meanings are as follows:
A detailed explanation of command line parameter meaning
/s normal running screen saver (to the time system automatic call), generally required to receive keyboard events to exit, screen mouse events and their display
/A allows you to display a password Input dialog box when the user ends the screensaver (WIN98 needs to be implemented from the Implementation dialog box, WIN2000, and then automatically return to the lock when the login dialog box, this parameter can not be used)
/C Display the Settings dialog box for this screensaver when selecting a configuration for the screensaver
/P Preview the screensaver when the screensaver is selected, generally requiring a return of the keyboard or mouse event to be received

In C # We can achieve this:
Using System;
Using System.Collections;
Using System.ComponentModel;
Using System.Drawing;
Using System.Windows.Forms;
public class MyScreenSaver:System.Windows.Forms.Form
{
public static void Main (String arg)
{
Application.Run (New Myscreensaver (ARG)); Pass the parameters to the form
}
Public Myscreensaver (String arg)
{
Achieve Full screen display
This. Width = Screen.PrimaryScreen.Bounds.Width;
This. Height = Screen.PrimaryScreen.Bounds.Height;
This. left = 0;
This. top = 0;
Switch (ARG. ToLower ())
{
Case "/S":
/*... Normal operation Implementation code * *
Break
Case "/a":
/*... Password dialog box implementation code * *
Break
Case "/C":
/*... Parameter Settings Implementation code * *
Break
Case "/P":
/*... Preview Implementation Code * *
Break
Default
Application.exit (); Other cases exit
Break
}
/*... Other code * *
}
/*... It code * *
}

After the program is completed, the generated EXE extension is changed to ". SCR" and then copied to the System32. Then you can select it on the desktop--> "Display Properties"--> "screen saver" and do Other related actions (settings, previews, etc.).