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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<meta http-equiv="Content-Type"
content="text-html; charset=Windows-1252">
<title>INT 10,1A - Video Display Combination (VGA)</title>
<meta name="FORMATTER" content="Microsoft FrontPage 2.0">
</head>
<body>
<h1><a name="kap_interrupt_0300"></a>INT 10,1A - Video Display
Combination (VGA)</h1>
<p> AH = 1A</p>
<p> AL = 00 get video display combination</p>
<p> = 01 set video display combination</p>
<p> BL = active display (see table below)</p>
<p> BH = inactive display</p>
<p> on return:</p>
<p> AL = 1A, if a valid function was requested in AH</p>
<p> BL = active display (AL=00, see table below)</p>
<p> BH = inactive display (AL=00)</p>
<p> % Valid display codes:</p>
<p> FF Unrecognized video system</p>
<p> 00 No display</p>
<p> 01 MDA with monochrome display</p>
<p> 02 CGA with color display</p>
<p> 03 Reserved</p>
<p> 04 EGA with color display</p>
<p> 05 EGA with monochrome display</p>
<p> 06 Professional graphics controller</p>
<p> 07 VGA with analog monochrome display</p>
<p> 08 VGA with analog color display</p>
<p> 09 Reserved</p>
<p> 0A MCGA with digital color display</p>
<p> 0B MCGA with analog monochrome display</p>
<p> 0C MCGA with analog color display</p>
<p> - returns value at byte 40:8A indicating display combination
status</p>
<p> - used to detect video display capabilities</p>
<hr>
<table border="0" width="100%" cols="3">
<tr>
<td width="33%">Zur<EFBFBD>ck zum <a href="inte1at0.htm">Interrupt
Info</a>. </td>
<td align="center" width="33%"><a
href="mailto:Roger.Morgan@htl-steyr.ac.at">Roger Morgan</a>
/ 1998 </td>
<td align="right" width="33%"><font size="1">L.<2E>nderung <!--webbot
bot="Timestamp" s-type="EDITED" s-format="%d.%m.%y"
startspan -->29.03.99<!--webbot bot="Timestamp" endspan
i-checksum="13964" --> </font></td>
</tr>
</table>
</body>
</html>