How to display UTF-8 text in a TextArea Wildcard in TouchGFX?

[HTD]

I set the character wildcards properly, to include all required characters.

Here's my example code:

Unicode::strncpy(errorTextBuffer, "Zażółć gęślą jaźń.", ERRORTEXT_SIZE);
errorText.resizeToCurrentText();
errorText.invalidate();

But what I get is this:

The character encoding for my entire project is "UTF-8", so this is the file encoding.

I tried to use UART as the debug console and it outputs the UTF-8 text with no problems.

I guess Unicode functions of TouchGFX don't expect the char* strings to be UTF-8. How it is done properly?

[HTD]

Oh, silly me:

Unicode::fromUTF8((const uint8_t*)"Zażółć gęślą jaźń", errorTextBuffer, ERRORTEXT_SIZE);
errorText.resizeToCurrentText();
errorText.invalidate();