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<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="GENERATOR" content="Mozilla/4.5 [en] (X11; I; Linux 2.0.35 i586) [Netscape]"> <title>LST - Cursor On Cursor - Del B2</title> </head> <body bgcolor="#FFFFFF"> <center><b><font face="Arial,Helvetica"><font size=+1>LST</font></font></b> <br><b><font face="Arial,Helvetica"><font size=+1>Cursor On Cursor</font></font></b> <br><b><font face="Arial,Helvetica"><font size=+1>Del B2</font></font></b> <br> <hr WIDTH="100%"> <br><img SRC="InternalStructure6.gif" ALT="LST - Cursor On Cursor - Del B2" BORDER=0 height=337 width=648> <br> <hr WIDTH="100%"></center> <b><font face="Arial,Helvetica">Description</font></b><font face="Arial,Helvetica"></font> <p><font face="Arial,Helvetica">This diagram depicts what happens when an item (B2) is deleted.</font><font face="Arial,Helvetica"></font> <p><font face="Arial,Helvetica">Notice that the reference item (B2) is removed immediatly. This causes the reference counter in (A4) to be reduced. A delete flag is set in (A4) because there are still references to it and deletion is delayed until all references are removed. (C) and (C1) are oblivious to the delete.</font><font face="Arial,Helvetica"></font> <p><font face="Arial,Helvetica">Navigation is affected by (A4) being flagged for delete. Navigation functions such as; lstFirst and lstNext will skip (hide) any items which are flagged for delete. This prevents deleted items from getting more references.</font><font face="Arial,Helvetica"></font> <p><b><font face="Arial,Helvetica">Related Functions</font></b><font face="Arial,Helvetica"></font> <p><font face="Arial,Helvetica">lstDelete</font> <br> <hr> <center><a href="InternalStructure5.html"><img SRC="back.gif" ALT="[Back]" BORDER=0 height=32 width=32></a><a href="InternalStructure7.html"><img SRC="next.gif" ALT="[Next]" BORDER=0 height=32 width=32></a> <p>Page 6 of 9</center> </body> </html>