END_DISP : End displaying of text content parts by closing output file and
notifying GUI client program of the new contents contained in the output file.
syntax: end_disp
End displaying of text content parts by closing output file and notifying GUI client program
of the new contents contained in the output file. This command follows at the end of a series
of DISP_PARTS commands for displaying large amounts of text data to the output file in parts
before notifying the GUI calculator client to display the contents of the output file all at
once after the END_DISP command is executed.