Paul Dupuis wrote:
> "Normally" (and yes that can be subjective), you expect key presses to
> cause characters to appear or clicking in a closebox of a window to
> close the window. If the messages corresponding to those are trapped
> without passing the message, the event/action is not performed by the
> engine.
There's the difference between keyDown and keyUp, and where many people
fond of HyperCard find themselves needing to learn new things but in
ways most of us here welcome:
LiveCode has extended the scope of its messages to provide a granularity
unmatched by perhaps even the most comprehensive xTalk eer. Sybase Gain
Momentum.
With LiveCode we can choose to handle either the moment before the key
is rendered in the field (keyDown) or after (keyUp).
Both are useful of course, but for different circumstances.
But to address the original question, I don't believe I've seen a
catalog of messages categorized by implications of passing or not
passing. And since the implications vary so much from message to
message, I'm unable to conceive of what those categories might look like.
--
Richard Gaskin
Fourth World Systems
Software Design and Development for the Desktop, Mobile, and the Web
____________________________________________________________________
ambassa...@fourthworld.com http://www.FourthWorld.com
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