Category: other operating systems
Flags: callout or callback (usually hooked rather than called)

INT 2F - OS/2 compatibility box - SWITCHING DOS TO BACKGROUND

	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