@Piru
I decided to use calloc, so to clear the allocated memory as well. Also, I decided to calculate the output length based on GetByteSize() and not GetLength(), since, if I get it right, it gets in consideration the target encoding and that is quite useful when the characters are multibyte, like the UTF-8.

Now my app is able to encode the text in other encodings and also open any file with different encodings. Quite useful for a code editor.

I hope to have soon a new release.

Thank you guys again for your help.