TextView showing "?" mark instead of text using STM32 TouchGFX?

Question

I want to fill a textView with a string, after a click on a button. I did every thing correctly but it shows only the "a" character and the other with a fallback character. this is the function that fill the text view buffer

The wildcard

The topography

Answer 1

You should use Unicode::strncpy() instead of snprintf()

Answer 2

You can try:

Unicode::strncpy(textArea1Buffer1, x, TEXTAREA1BUFFER1_SIZE);
Unicode::snprintf(textArea1Buffer1, TEXTAREA1BUFFER1_SIZE, "%s", textArea1Buffer1);