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<TITLE>Int 2F/AX=4B03h
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Int 2F/AX=4B03h - DOS 5+ TASK SWITCHER - ALLOCATE SWITCHER ID -
AX = 4B03h
ES:DI - task switcher entry point (see #02819)
Return: AX = 0000h
BX = switcher ID (0001h-000Fh), or 0000h if no more available
Notes: if a task switcher has determined that it is the first to be loaded, it
must allocate an identifier for itself and provide this function to
all subsequent task switchers; if it is not the first to be loaded,
it must call this function to allocate an ID. The switcher ID is
used as the high four bits of all session identifiers to ensure
unique session IDs.
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<h2>Int 2F/AX=4B03h
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<h3><font color=#C00040>DOS 5+ TASK SWITCHER - ALLOCATE SWITCHER ID</font></h3>
<PRE>
AX = 4B03h
ES:DI -> task switcher entry point <a href="rb-4862.htm#Table2819" tppabs="http://www.ctyme.com/intr/rb-4862.htm#Table2819">(see #02819)</a><br>
<p><b>Return:</b><br>AX = 0000h
BX = switcher ID (0001h-000Fh), or 0000h if no more available
</PRE>
<p><b>Notes:</b>
If a task switcher has determined that it is the first to be loaded, it
must allocate an identifier for itself and provide this function to
all subsequent task switchers; if it is not the first to be loaded,
it must call this function to allocate an ID. The switcher ID is
used as the high four bits of all session identifiers to ensure
unique session IDs..
If no more switcher IDs are available, the new task switcher making the
call must terminate or disable itself.
The task switcher providing the identifiers may call the new task
switcher's entry point as needed.
This call is available from within DOSSHELL even if the task switcher
is not installed.
This function is supported by PC Tools v8+ CPTASK, but appears to
always return an ID of 0000h
<p><b>See Also:</b>
<a href="rb-4862.htm" tppabs="http://www.ctyme.com/intr/rb-4862.htm">AX=4B02h</a> - <a href="rb-4864.htm" tppabs="http://www.ctyme.com/intr/rb-4864.htm">AX=4B04h</a>
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<b>Category: <a href="cat-011.htm" tppabs="http://www.ctyme.com/intr/cat-011.htm">
DOS-Based Task Switchers/Multitaskers</a>
- <a href="int-2f-1.htm" tppabs="http://www.ctyme.com/intr/int-2F.htm">
Int 2Fh</a>
- <a href="alpha-d.htm" tppabs="http://www.ctyme.com/intr/alpha-d.htm">
D</a>
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