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AX = 4810h DS:DX -> line buffer (see #01344 at INT 21/AH=0Ah)
Return:
AX = 0000h if successful
Notes: The first byte (length) of the buffer MUST be 80h, or MS-DOS's DOSKEY chains to the previous handler; PCED and Novell DOS allow sizes other than 80h. If the user's input is a macro name, no text is placed in the buffer even though AX=0000h on return; the program must immediately issue this call again to retrieve the expansion of the macro. Similarly, if the user enters a special parameter such as $*, this call must be repeated to retrieve the expansion; on the second call, DOSKEY overwrites the macro name on the screen with its expansion.. Unlike DOSKEY, PCED expands all macros on the first call, so it is not necessary to make two calls; since the buffer is not empty on return, DOSKEY-aware programs will not make the second call. DOSKEY chains if AL is not 00h or 10h on entry. This function is supported by Novell DOS 7 DOSKEY
See Also: AX=4800h - INT 21/AH=0Ah
Category: Keyboard Enhancers - Int 2Fh - D
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