Intermec PENKEY 6100 Programmer's Reference Manual page 182

Conversions and Interfaces
INT 10h, Function AX = 1019h: Get PEL Mask
BIOS
On Entry:
On Return:
INT 10h, Function AX = 101Ah: Get Color Page State
BIOS
On Entry:
On Return:
INT 10h, Function AX = 101Bh: Set Gray-Scale Values
BIOS
gray_sum = 30% red + 59% green + 11% blue.
On Entry:
On Return:
R
6-46 PEN*KEY 6100 Computer Programmer's Reference Guide
SECTION 6