From: D T <tran55555@...>
Date: 2003-06-18T23:36:47+09:00
Subject: Re: Tk canvas widget Id's

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Hi John,
 
q = w.find_withtag 'current'
q will hold an array object, because it can be many objects associate
to the same 'tag', even there is only one like 'current'.
The find_withtag always return an array object.
q.id # you are calling array's id method, not Tk's method.
q[0].id # this should work in your case.
 
Dave

John Fletcher <J.P.Fletcher@aston.ac.uk> wrote:


q = w.find_withtag 'current'
puts q # Gives the same object address as for the item previously
puts q.id # This gives garbage which changes.

Is there something else wrong?

John




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<DIV>Hi John,</DIV>
<DIV>&nbsp;</DIV>
<DIV>q = w.find_withtag 'current'</DIV>
<DIV>q will hold an array object, because it can be many objects associate</DIV>
<DIV>to the same 'tag', even there is only one like 'current'.</DIV>
<DIV>The find_withtag always return an array object.</DIV>
<DIV>q.id # you are calling array's id method, not Tk's method.</DIV>
<DIV>q[0].id # this should work in your case.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Dave</DIV>
<DIV><BR><B><I>John Fletcher &lt;J.P.Fletcher@aston.ac.uk&gt;</I></B> wrote:
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<P><BR><BR>q&nbsp;= w.find_withtag 'current'<BR>puts q # Gives the same object address as for the item previously<BR>puts q.id # This gives garbage which changes.<BR><BR>Is there something else wrong?<BR><BR>John<BR></P></BLOCKQUOTE></DIV><p><hr SIZE=1>
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