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Int 7A/BX=0023h - Novell NetWare - IPXODI v2.12+ - OPEN LOOK-AHEAD SOCKET -
BX = 0023h
DX = socket number (0000h for dynamic allocation)
ES:SI - Look Ahead handler (see #03831)
BP = desired lookahead size (0000h-0080h)
Return: AL = status
00h successful
DX = assigned socket number (big-endian)
FEh maximum number of sockets already open
FFh specific socket already opened by another application
DS,FLAGS preserved
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<h2>Int 7A/BX=0023h
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<h3><font color=#C00040>Novell NetWare - IPXODI v2.12+ - OPEN LOOK-AHEAD SOCKET</font></h3>
<PRE>
BX = 0023h
DX = socket number (0000h for dynamic allocation)
ES:SI -> Look Ahead handler <a href="rb-7877.htm#Table3831" tppabs="http://www.ctyme.com/intr/rb-7877.htm#Table3831">(see #03831)</a>
BP = desired lookahead size (0000h-0080h)<br>
<p><b>Return:</b><br>AL = status
00h successful
DX = assigned socket number (big-endian)
FEh maximum number of sockets already open
FFh specific socket already opened by another application
DS,FLAGS preserved
all other registers may be destroyed
</PRE>
<p><b>Notes:</b>
The socket will always be long-lived, and must thus be explicitly
closed with INT 7A/BX=0001h before the Look Ahead handler code is
removed from memory (i.e. the program terminates).
This function is only supported if INT 2F/AX=7A00h returns ES:BX
pointing at an IPX version greater than 3.30.
The desired lookahead size is the smallest-size packet (including IPX
header) that should be passed to the lookahead handler when it
arrives
<p><b>See Also:</b>
<a href="rb-7842.htm" tppabs="http://www.ctyme.com/intr/rb-7842.htm">INT 7A/BX=0000h</a> - <a href="rb-7843.htm" tppabs="http://www.ctyme.com/intr/rb-7843.htm">INT 7A/BX=0001h</a>
<PRE>
<p>
<a name=table3831></a>
(Table 03831)
Call IPX Look-Ahead handler with:.
AX = packet's destination socket.
DS:SI -> look-ahead structure <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #03010 at INT 2F/AX=C000h"LSL").
DF clear.
Interrupt disabled (must remain disabled)<br>
<p><b>Return:</b><br>AX = packet use
0000h application want packet
ES:SI -> ODI ECB <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #03011 at INT 2F/AX=C000h"LSL")
8001h application does not want packet
ZF set if AX=0000h
DS,DI,BP,SS,SP preserved
interrupts disabled
</PRE>
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