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AH = 64h DX = 0002h (function number) CX = 636Ch (magic value, "cl") BX = 0000h (indicates special request) ES:DI -> 13-byte buffer for current title
Return:
Buffer filled (single 00h if title never changed)
Note: If CX is not 636Ch on entry, INT 21/AH=6Ch is invoked, because a bug in OS/2 1.x FAPI erroneously called AH=64h instead of AH=6Ch
See Also: AH=64h/DX=0000h - AH=64h/DX=0001h - INT 15/AH=12h/BH=05h
Category: Other Operating Systems - Int 21h - O
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