Thomas W Wolf says:
Someone posted a message requesting information on how to use Delphi
for a screen saver.
a) In the project file (*.dpr) add '{$D SCRNSAVE } after
the uses clause.
b) On the main form, turn off the border and icon controls. In the
activate method set the form left and top to 0, and set the
Windowstate to wsMaximize.
c) In the form create method, set the application.OnMessage to a
method that controls the deactivation of the screen saver. Set the
application.OnIdle method to whatever display method for the saver.
d) In the form create method the command line should be tested for /c
and /s. These are the command line parameters windows uses to define
whether the screensaver should run or configure. (/c is for
configuration)
e) Compile the program, and rename the .exe to .scr. Move it to the
windows directory, and it should show up in the control panel.