Important: Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct
How QTextDocumentWriter selects codec in textedit example?
I am trying the example textedit.pro in example/widgets/richitext in Windows.
It can handle .txt, .md, and .html.
When I save a Japanese document as txt, it is saved with UTF-8.
When I save the same document as markdown(not html), it is saved with shift-JIS.
QTextCodec *codec = QTextCodec::codecForName("UTF-8");
does not change the result.
I would like to know the reason.
By the way, Window is Japanese edition.
Build types are MSVC2019 and MinGW.
I solved by myself, maybe.
In the constructor of TextEdit,
textEdit = new QTextEdit(this);
then I could save .md file as encoded by UTF-8.
Without this, .md file will be saves as shift-jis (system's default).
.txt files are always saved using UTF-8 encoding without the added line.