Hi
I just discovered some unexpected consequences of the mouse-wheel
support for Windows.
Metacard fields will automatically scroll when you turn the
mouse-wheel on a Windows mouse that has such a doodad. However, this
may not be always what you want. For example, in a multi-column list
with synchronized fields, one of the fields will scroll independently
of the others unless you catch the mouse-wheel action.
It seems the only way to catch a mouse-wheel action is in a
rawKeyDown handler. (65308 and 65309 are the arguments for down and
up scrolling respectively.)
Questions:
Are the keyboard codes platform dependent? If so, do these codes
(65308,65309) do anything on non-Windows platforms?
Do any other platforms support a mouse-wheel?
Are there any other ways to control the mouse-wheel that I've missed?
(field properties, mouseWheel messages, etc.)
Wouldn't it be better to have automatic mouse-wheel support in fields
only if the field in question has a vertical scrollbar? (The
assumption being that fields without scrollbars will not be scrolled
in the conventional way, if at all.)
Cheers
Dave Cragg
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The LACS Centre (Business English Training Resources)
mailto:[EMAIL PROTECTED]
http://www.lacscentre.co.uk
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