INT 10 - VIDEO - Compaq Extensions - NEW ACTIVE MONITOR AX = BF12h BH reserved BL = function mask (see #00215) Return: CF clear Notes: this function is a NOP if the VGA subsystem is inactive or the current Display Combination Code is 10h or higher supported by at least the QVision board and the LTE Lite and ProSignia ROM BIOSes SeeAlso: AX=BF01h,AX=BF02h,#00733