From Xojo Documentation
Creates a TextConverter object for converting between two encodings. It also works if the input encoding and output encoding are the same.
|result||TextConverter||Object of type TextConverter, used to perform conversion from InputEncoding to OutputEncoding.|
|inputEncoding||TextEncoding||Input text encoding.|
|outputEncoding||TextEncoding||Output text encoding.|
Every string may internally have a record of its encoding as well as the bytes that constitute its actual text. In many cases, the encoding is unknown, but any string returned by a TextConverter will have a known encoding, and so will be treated properly by TextFields and Graphics.DrawString. This is why it may sometimes be useful to get a TextConverter where the input and output encodings are the same; it provides a way to make sure that your app knows what encoding a string represents.
The following example converts the text in a TextField:
c = GetTextConverter(GetTextEncoding(&h500), GetTextEncoding(0))
TextField2.Value = c.Convert(TextField1.Value)