> Does anyone have an example stack of how and why to use a > front/back script?
Hi Tom,
Serendipity Library contains a field, "Keyboard Filter", and a handler, sdbKeyboardFilterOn:
on sdbKeyboardFilterOn
insert the script of field "Keyboard Filter" of card 1 of stack "Serendipity_Library.rev" into front
end sdbKeyboardFilterOn
The script of Keyboard Filter traps keyDown & other pertinent messages (eg: backSpaceKey, returnInField) before any other Rev control, checks to see if the character is legal input for the field with focus (eg: it rejects all characters except "0"-"9",<return>, <enter>, <backSpace> and (optionally) "-", ".", ",", and/or [currency symbol] for fields set up for numeric input), and only passes legal input.
The reason this is a frontScript are:
I want to filter out illegal keystrokes before the character is displayed in the field
I want the filter to trap all keystrokes before any other handler has a chance to respond
Hope this helps. -- Rob Cozens, Staff Conservator Mendonoma Marine Life Conservancy
"Thirty years ago, our fisheries seemed inexhaustible. Today we know they are not. The fault lies in large measure with man. Man is a voracious consumer, and modern technology has made it possible for fishing vessels to harvest the living resources of the seas in prodigious amounts."
-- Eliot L. Richardson, U.S. Secretary of Commerce, 1975
in "From Abundance to Scarcity" by Michael L. Weber
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