RE: Programs that didn't need to be written - ScreenSaver5250

Frank,
INVITE, essentially, "unlocks the keyboard" so you can do an output-only operation to a screen,
but still allow keyboard input (in the case of a screen saver,
I'm assuming you'd use it so a key like enter or an F-key will stop the screen saver.)

While you could use it with ACQ to handle multiple displays, that's only one potential use.

Quite confused.  Not sure how INVITE would work as a screen saver.
I was never aware that OS400 disconnected inactive jobs.
INVITE is used with ACQ op-code for multiple device coding.  I rarely
used MRT programs, INVITE is used with UDDS to get input from the
device, also rarely used.

From the manual
-----
INVITE (Invite) keyword for display files Use this file- or
record-level keyword to invite the device for a later read. To send an
invite to a specific device, your program sends an output operation to
the device with the INVITE keyword in effect. If the record format
used has output-capable fields, the data is sent to the device before
the device is invited.
This keyword has no parameters.
INVITE must be used if the display file can have multiple _acquired_
devices and your program does read from invited devices operations.