INT 05h (5)              Print Screen

Prints the current screen contents to the first parallel printer
(LPT1).

This interrupt can be called from within a program as well as by means
of the Shift-PrtSc key combination. The service returns no register
values but sets a status code at memory location 0000:0500h. The
possible values of this status code, and their meanings, are as
follows:

  00h          Print Screen not called, or operation completed

  01h          Print Screen currently in progress

  FFh          Error encountered during most recent Print Screen

                                                                          

Notes:         The cursor position is saved before the Print Screen
is executed and restored upon completion of the
Print Screen.

The Print Screen service runs with interrupts
enabled.

While a Print Screen is in progress, additional
Print Screen requests are ignored.

The DOS GRAPHICS program replaces the normal INT 05h
handler and installs a handler that will print
graphic displays.


INT 05h (5) Print Screen