At 02:33 2004-01-08, Steve Pick wrote:
When removing hooks they are identified by coderef, so this is WRONG:
$win->Hook(WM_MOVE, sub { print "moved!" });
$win->UnHook(WM_MOVE, sub { print "moved!" });
In that case, UnHook will return false and the hook will not be removed
because the codref passed to the UnHook call will be different to the one
passed to Hook. You should do it like this:
$movedsub = sub { print "moved!\n" };
$win->Hook(WM_MOVE, $movedsub);
$win->UnHook(WM_MOVE, $movedsub);
I'm sorry but, from the outside, doesn't this seem slightly illogical?
What happens if you do:
$win->Hook(WM_MOVE, $mysub);
$win->Hook(WM_MOVE, $myothersub);
or even using the same handler for two windows:
$win->Hook(WM_MOVE, $mysub);
$win2->Hook(WM_MOVE, $mysub);
Would that result in weirdness?
Would it not be more logical to key the hook by the $win and the message
(WM_MOVE) rather than the handler coderef? 1) No strange semantics. 2) No
need to remember what I happened to hook it with.
Or is it just me? :)
/J
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Johan Lindström Sourcerer @ Boss Casinos [EMAIL PROTECTED]
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