My application uses unicode characters and I have several text fields, where I can tell the user a special letter like I want to ban the input: ''; if not initialized (['a' .. 'z', '', '' key of '0', '9' # 13, # 8]) then the key: = # 0; If the key = # 13 then bak. Click; the ending; At this point it adds the user to the blank space and use the backspace key to erase it, and of course enter the key of the compartment. There are some unicode characters that I want to input. Ą, č, ė, į, š, ų, ū, and their uppercase options, but just add them as set ... In key ['a' .. ' Z ',' a '..' z ',' ',' 0 '..' 9 ', # 13, # 8,' â '..' ž ',' Ą '..' Ž '] ... does nothing and I still can not write these symbols in the text area. I know how to fix this problem. Is there a way to say that the pressed keys are Unicode characters looking for I? ...