Alternative solution: filter out combining character keysyms to add displayable characters to the lookup table. #15

Proposed as a replacement for #14.

Works perfectly - let's go with that. Obviously I didn't understand what was needed.

Also works without the suffix 'L' on the keysym - what's that for?

Thanks for testing Ray.
The 'L' is to tell the compiler that the value is a "long" literal, since now "ucs" is defined as a "long" type. It would work without 'L' too, the compiler would do the conversion. But always better to write good code 😄