Is there any way to turn off the blinking caret for an EditUnicodeText
control? Our fields support an "undefined" state, where the value is
undefined and a horizontal line is drawn through the field. The entire
field is shown as selected and can not show a caret. I didn't find
anything in the docs.
I could fake this by setting the field value to " " and selecting it,
but then if somebody asks for the value without asking if it's
undefined, they'll get " " instead of "" which could be bad depending
on what the code is doing with the value.
Even better, I don't suppose there's a way to make a field mixed like
checkboxes and radio buttons can be? I didn't find anything in the
docs.
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