Int 15/AH=47h

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HP 100LX/200LX - GET/SET DISPLAY CONTRAST

AH = 47h
AL = subfunction
00h set contrast
BL = new contrast
(00h-0Fh, 0Fh is darkest, 10h-FFh are same as 0Fh)
other get current contrast

Return:
AL = contrast (00h-0Fh, 0Fh is darkest)

Note: May be for backward compatibility with HP95LX, as INT 15/AH=62h does substantially the same thing as this function

See Also: AH=45h"HP" - AH=48h"HP" - AH=62h"HP"

Category: Vendor-specific BIOS Extensions - Int 15h - H

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