Category: video
INT 10 - VIDEO - FLAT-PANEL - CONTRAST CONTROL FOR TEXT/GRAPHICS AX = 1E06h BH = function bit 7: =1 set contrast control, =0 query contrast bits 6-0: reserved (0) ---if BH bit 7 set--- BL = new normal/reverse video setting (see #00059) Return: AL = 1Eh if function supported BH = results bit 7: query/set (copied from input) bits 6-4: reserved (0) bit 3: software contrast control supported for text bit 2: software contrast control supported for graphics bit 1: hardware supports independent control of contrast in text and graphics modes bit 0: set operation was successful (always clear on get) BL = active contrast setting (see #00059) Note: this function operates independently of AX=1E08h SeeAlso: AX=1E00h,AX=1E04h,AX=1E05h,AX=1E07h,AX=1E08h