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<TITLE>Int E0/CL=87h
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Int E0/CL=87h - ConcCP/M,DR Multiuser DOS - Q_OPEN - OPEN MESSAGE QUEUE -
CL = 87h
DS:DX - queue parameter block (QPB) (see #04044,#04045)
Return: AX = status (0000h success, FFFFh failure)
CX = error code (see #04021)
Note: also supported by REAL/32
SeeAlso: INT E0/CL=86h,INT E0/CL=88h,INT E0/CL=89h
Format of DR Multiuser DOS queue parameter block:
Offset Size Description (Table 04044)
00h WORD internal use, initialize to zero
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<h2>Int E0/CL=87h
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<h3><font color=#C00040>ConcCP/M,DR Multiuser DOS - Q_OPEN - OPEN MESSAGE QUEUE</font></h3>
<PRE>
CL = 87h
DS:DX -> queue parameter block (QPB) <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 #04044,#04045)<br>
<p><b>Return:</b><br>AX = status (0000h success, FFFFh failure)
CX = error code <a href="rb-8501.htm#Table4021" tppabs="http://www.ctyme.com/intr/rb-8501.htm#Table4021">(see #04021)</a>
</PRE>
<p><b>Note:</b>
Also supported by REAL/32
<p><b>See Also:</b>
<a href="rb-8544.htm" tppabs="http://www.ctyme.com/intr/rb-8544.htm">INT E0/CL=86h</a> - <a href="rb-8546.htm" tppabs="http://www.ctyme.com/intr/rb-8546.htm">INT E0/CL=88h</a> - <a href="rb-8547.htm" tppabs="http://www.ctyme.com/intr/rb-8547.htm">INT E0/CL=89h</a>
<PRE>
<p>
Format of DR Multiuser DOS queue parameter block:
<a name=table4044></a>
Offset Size Description (Table 04044)
00h WORD internal use, initialize to zero
02h WORD queue ID (set by INT E0/CL=87h)
04h WORD internal use, initialize to zero
06h WORD offset of queue message buffer
(REAL/32) if FFFFh, then full address of buffer is stored at
offest 10h
08h 8 BYTEs queue name
---REAL/32 only----
10h DWORD segment:offset of queue message buffer
</PRE>
<p><b>See Also:</b>
#04045
<PRE>
<p>
Format of protected-mode REAL/32 Queue Parameter Block (QPB):
<a name=table4045></a>
Offset Size Description (Table 04045)
00h WORD internal use
02h WORD queue ID
04h WORD internal use
06h DWORD 32-bit offset to buffer
0Ah WORD selector for buffer
0Ch 8 BYTEs queue name
</PRE>
<p><b>See Also:</b>
#04044
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