From FAQServer@2:5020/181 to All on Tue Sep 30 07:37:09 2025
[Q]: Как yзнать, в FS ли DOS-сессия?
[A]: Alexander Perezhogin (2:5007/2.1)
INT 2F C - 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
INT 2F C - OS/2 compatibility box - SWITCHING DOS TO FOREGROUND
AX = 4002h
Note: called by OS/2 when the DOS box is about to be placed in the
foreground and the video driver should restore the previously-saved
state
SeeAlso: AX=4001h,AX=4006h
--- INN 2.7.4 (20250809 prerelease)
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