PRINTSCR()
 Prints screen contents
------------------------------------------------------------------------------
 Syntax

     PRINTSCR() --> cNull

 Returns

     PRINTSCR() always returns a null string.

 Description

     A call to PRINTSCR() has the same effect as when you press the PRINT
     SCREEN key.

 Notes

     .  Due to known name conflicts with other add on libraries (e.g.,
        dGE, use the name PRTSCREEN() as an alternate.

     .  The Print Screen output, whether executed by this function or
        manually, may be further influenced by PRINTSCRX().

 Example

     Print screen contents:

     PRINTSCR()