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AX = 1400h
Return:
AX = FFFFh if installed BX = maximum memory required to save screen and keyboard info CF clear if successful CF set on error AX = error code 0002h invalid function 0004h unknown error
Note: The POPUP interface is used by background programs (see INT 21/AH=80h) to communicate with the user
See Also: AX=1401h"POPUP" - AX=1402h"POPUP" - AX=1403h"POPUP"
Category: DOS Kernel - Int 2Fh - E
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