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   <title>LST - Cursor - Add B</title>
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<center><b><font face="Arial,Helvetica"><font size=+1>LST</font></font></b>
<br><b><font face="Arial,Helvetica"><font size=+1>Cursor</font></font></b>
<br><b><font face="Arial,Helvetica"><font size=+1>Add B</font></font></b>
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<br><b><font face="Arial,Helvetica">Description</font></b>
<p><font face="Arial,Helvetica">This diagram depicts a cursor (B) which
is based upon the root list (A). The cursor was created with a call to
lstOpenCursor(). This cursor contains a subset of items from the base list
because a filter function was provided. Cursors can be manipulated using
the same functions as a normal list and they are closed with a simple call
to lstClose().</font>
<p><font face="Arial,Helvetica">The pData in cursor items refer directly
to the corresponding item in the root list. Reference counters are increased
in the base list (A) and in each item. This prevents underlying data from
being deleted while a derived cursor is still in use.</font>
<p><b><font face="Arial,Helvetica">Related Functions</font></b>
<p><font face="Arial,Helvetica">lstOpenCursor</font>
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