add minus key to TEdit keyboard

  

This isn’t a big deal but i thought i’d ask in case the solution is straight forward. I’m using a TEdit box for user to input a decimal number. I’d like to have a minus key so they can enter negative number, but i’d prefer not to use the alphanumeric keyboards, i’d prefer a nice clean keyboard like the keyboard below (that is what i get on iOS with my TEdit box KeyboardType set to DecimalNumberPad.

Is there a way to get a keyboard that is limited to just numbers, decimal, and backspace but also with minus key? I have a work-around to let them change sign on the number. I’m just wondering if a simple solution exists that would look cleaner.

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