21 Jun
2001
21 Jun
'01
8:26 a.m.
Two different concepts. The DOS tech refs are refering to the values to place in ah (I
think, or was it al?) before making a DOS or BIOS int call. This is all pre-DLL days.
Richard is referring to
the ordinal number within a DLL to reference a specific function located in the DLL. Not
all functions in a dll have their names exported and sometimes the only way to get to them
is by ordinal
number. This is one way that M$ creates 'value added' to their software by
utilizing these undocumented calls.
George
On Thu, 21 Jun 2001 13:42:53 -0400, John Allain wrote:
From: Cini, Richard
<RCini(a)congressfinancial.com>
most of the functions in the DOS Shell code
(MSDOS.exe
and MSDOSD.exe) are referenced by ordinal number
Early (most?) DOS techinical reference
manuals listed function calls by numbers,
E.G. 10H = Close file. 01H = Keyboard input, etc.
Could this be it?
John A.