Category: <b>video</b>
<p>
<pre><b>INT 2F - ANSIPLUS v3.10+ - GET ANSIPLUS SCROLLBACK INFORMATION</b>

	AX = 1AA9h
Return: AL = status
	    00h successful
		BX = current number of lines in scrollback buffer
		CX = number of bytes in one line
	    01h unsupported video mode active
	    02h screen currently scrolled back
	    03h reduced capability driver
	    A9h unsupported function (driver before v3.10)
Desc:	determine how much data is in the scrollback buffer and initialize
	  scrollback retrieval to return the first line on the next call to
	  AX=1AA8h
SeeAlso: AX=1A00h/BX=414Eh,AX=1AA8h
</pre>