Thanks to Vas who fixed it up, the grappler plus is now in master. Yay!

Now you can do fun stuff with the ap2000 in getting graphic screen dumps with

./mame64 apple2e -sl1 grapplerplus -sl1:grapplerplus:prn ap2000

CTRL+I 0L sets left margin to zero
CTRL+I G enter gives you a graphic dump
CTRL+I GL enter gives you a graphic dump at the left margin
CTRL+I GD enter gives you a graphic dump double size
CTRL+I GDE enter gives you a graphic dump double size emphasized
CTRL+I GDER enter gives you a graphic dump double size emphasized rotated
CTRL+I GDER2 enter gives you a graphic dump double size emphasized rotated page 2
CTRL+I S gives text screen dump

and you can do it from the keyboard, like PR#1 enter CTRL+I G enter
or PRINT CHR$(9)"G"

graphic is from the a2tstdsk (apple 2 test disk) (the password for the a2tstdsk is 123 - had to figure that out),

[Linked Image from i.imgur.com]