Intermec 6100 Reference Guide
SECTION 6
Conversions and Interfaces
6-54 PEN*KEY
R
6100 Computer Programmer’s Reference Guide
INT 10h, Function AH = 12h, BL = FEh: Read or Write Contrast
VROTATE
Returns or changes the current contrast setting. Range is 0 (darkest) to 15.
On Entry:
Returns or changes the current contrast setting. Range is 0 (darkest) to 15.
On Entry:
AH = 12h
BL = 0FEh
AL = Request type:
0 = Read request
1 = Write request
BH = Contrast level, if write request
On Return:
BH = Contrast level, if read request
INT 10h, Function AH = 12h, BL = FFh: Backlight Off or On
4000API
Issued by the keyboard interrupt handler when the backlight key is pressed. If
Issued by the keyboard interrupt handler when the backlight key is pressed. If
the light is active, it is deactivated. If inactive, activated.
On Entry:
On Entry:
AH = 12h
BL = 0FFh
AL = Request type:
0 = Activate backlight
1 = Turn light off
2 = Toggle the backlight
On Return:
None
Norand-Specific Display Modes: Interrupt 10h
INT 10h, Function AX = 12DDh, Subfunction BL = FCh: Return Invert Mode
VROTATE
On Entry:
On Entry:
AH = 12h
AL = 0DDh
BL = 0FCh
On Return:
AL = Nonzero = Invert mode set
INT 10h, Function AX = 12DEh, Subfunction BL = FCh: Enable Invert Mode
VROTATE
Enables character mapping of character codes above 128 by subtracting 128
Enables character mapping of character codes above 128 by subtracting 128
from the character code. The character is then displayed in inverse video,
mapped as character codes 0 through 127.
On Entry:
On Entry:
AH = 12h
AL = 0DEh
BL = 0FCH
On Return:
None
6. Conversions and
Interfaces