Category: video
INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (PS,EGA,VGA,MCGA) - ALTERNATE PRTSC AH = 12h BL = 20h select alternate print screen routine Return: nothing Desc: installs a PrtSc routine from the video card's BIOS to replace the default PrtSc handler from the ROM BIOS, which usually does not understand screen heights other than 25 lines Note: some adapters disable print-screen instead of enhancing it SeeAlso: INT 05"PRINT SCREEN"