Specifications

D:\D\inter61a\INTERRUP.A Saturday, January 08, 2011 11:31 AM

02h switch active video off

03h switch inactive video on

80h *UNDOCUMENTED* set system board video active flag

ES:DX -> buffer for 128 byte save area (if AL = 00h-03h)

Return: AL = 12h if function supported

Desc: switch between two video adapters which may otherwise have address

conflicts

SeeAlso: AX=BF00h,AX=BF01h,INT 6D"VGA"

--------V-1012--BL36-------------------------

INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (PS, VGA) - VIDEO REFRESH CONTROL

AH = 12h

BL = 36h

AL = new state

00h enable refresh

01h disable refresh

Return: AL = 12h if function supported

Desc: specify whether the contents of video memory should be displayed on

the screen; disabling refresh effectively blanks the screen

Note: when display refresh is disabled, the entire screen displays the color

specified by the DAC color register 00h; thus to actually blank the

screen, the application must first ensure that that register has been

set to black

BUG: GEM/VIEWMAX ET3000 and ET4000 drivers dated 1988/6/23 do not correctly

reenable refresh after the screen has been blanked due to inactivity,

resulting in a total loss of video synchronization

SeeAlso: AX=BF05h

--------V-1012--BL37-------------------------

INT 10 - VIDEO - XGA - MAINFRAME INTERACTIVE SUPPORT

AH = 12h

BL = 37h

AL = text attribute type (00h normal VGA, 01h mainframe type)

Return: AL = 12h if supported

SeeAlso: #00026,AH=08h,#00042

Bitfields for XGA mainframe type character attributes:

Bit(s) Description (Table 00026)

7 blink double rate (75% ON time) or use color 8 as background

(see AX=1003h)

6 reverse video

5 underlined

4 left-most and right-most dots of underline area inverted

-80-

http://www.foxitsoftware.com For evaluation only.