INT 42 - Toshiba laptops - GET DISPLAY STATUS AX = 7503h Return: AX = 7575h if supported CX = 0001h if supported BH = display type (00h color, 03h monochrome) BL = display state 01h internal LCD(Liquid Crystal Display) display is active 02h external VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. display is active 03h both displays active / DeskStation display mode enabled (not possible on all machines) Note: used by VCHAD.EXE and supported by all Toshiba VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. laptops until about 1994 (string "TOSHIBA " at F000:E010h should be checked before call) no longer supported by T21xx series, use INT 10/AX=5F50h instead INT 42 normally points to F000:F065h but may be redirected by QEMM386 SeeAlso: AX=7500h,AX=7504h,INT 10/AX=5F50h,INT 15/AH=C0h