I am trying to filter out "illegal" characters as the user is writing them
into a text field. To do this I wait for a keyDownEvent and then I process
it with the following code:
case keyDownEvent:
ch = pEvent->data.keyDown.chr;
handled = ! ( TxtCharIsAlNum( ch ) || TxtCharIsCntrl( ch ) );
break;
If handled = true
Then
the system does not concatenate the character to the field.
Else
the system concatenates the character to the field.
When I look at the results of TxtCharIsAlNum() it works correctly on the
Palm OS Emulator (Sony Clie). On the device Sony Clie NX60 (Palm OS 5.0) it
returns 0 for all character values including international characters.
Has anyone run into this problem? Or does anyone have any ideas on the
cause of this defect and maybe a work around?
Thanks for any help.
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