Category: video

INT 10 - VIDEO - SCREENR v1.55+ - API

	AX = 5049h ('PI')
	BX = function
	    0000h installation check
	    0001h lock mode
	    0002h unlock mode
	    0003h lock palette
	    0004h unlock palette
Return: AX = 0000h if installed
	    BX = TSR version (BH=major,BL=minor)
	    CL = mode locking status
		00h mode not locked
		01h mode locked: INT 10/AH=00h disabled
	    CH = palette locking status
		00h palette not locked
		01h palette locked, the following functions are disabled:
			AX=1000h, AX=1001h, AX=1002h, AX=1010h, AX=1012h
Program: SCREENR is a TSR supplied with Patrick Ibbetson's SCREEN display
	  utility.
Index:	installation check;SCREENR