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AH = 0Fh
Return:
AH = number of character columns AL = display mode (see #00010 at AH=00h) BH = active page (see AH=05h)
Notes: If mode was set with bit 7 set ("no blanking"), the returned mode will also have bit 7 set. EGA, VGA, and UltraVision return either AL=03h (color) or AL=07h (monochrome) in all extended-row text modes. HP 200LX returns AL=07h (monochrome) if mode was set to AL=21h and always 80 resp. 40 columns in all text modes regardless of current zoom setting (see AH=D0h). When using a Hercules Graphics Card, additional checks are necessary:
mode 05h:
If WORD 0040h:0063h is 03B4h, may be in graphics page 1 (as set by DOSSHELL and other Microsoft software)mode 06h:
If WORD 0040h:0063h is 03B4h, may be in graphics page 0 (as set by DOSSHELL and other Microsoft software)mode 07h:
If BYTE 0040h:0065h bit 1 is set, Hercules card is in graphics mode, with bit 7 indicating the page (mode set by Hercules driver for Borland Turbo C). The Tandy 2000 BIOS is only documented as returning AL, not AH or BH
See Also: AH=00h - AH=05h - AX=10F2h - AX=1130h -
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