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c++windowsqtqtextbrowser

QTextBrowser not displaying non-english characters

I'm developing a Qt GUI application to parse out a custom windows binary file that stores unicode text using wchar_t (default UTF-16 encoding). I've constructed a QString using QString::fromWcharArray and passed it to QTextBrowser::insertPlainText like this

wchar_t *p = ; // pointer to a wchar_t string in the binary file
QString t = QString::fromWCharArray(p);
ui.logBrowser->insertPlainText(t);

The displayed text displays ASCII characters correctly, but non-ASCII characters are displayed as a rectangular box instead. I've followed the code in a debugger and p points to a valid wchar_t string and the constructed QString t is also a valid string matching the wchar_t string. The problem happens when printing it out on a QTextBrowser.
How do I fix this?

Solution

  • First of all read documentation. So depending on system you will have different encoding UCS-4 or UTF-16! What is the size of wchar_t?

    Secondly there is alternative API: try QString::fromUtf16.

    Finally what kind of character are you using? Hebrew/Cyrillic/Japanese/???. Are you sure those characters are supported by font you are using?