Category: <b>other operating systems</b>
<br>Flags: callout or callback (usually hooked rather than called)<p>
<pre><b>INT 2F - OS/2 compatibility box - SWITCHING DOS TO BACKGROUND</b>

	AX = 4001h
Note:	called by OS/2 when the DOS box is about to be placed in the background
	  and the video driver should save any necessary state
SeeAlso: AX=4002h,AX=4005h
</pre>