How to synchronize text cursor and cursor in QTextEdit

[jpn]

Sounds like there might be something wrong with the technique of moving the cursor. Are you doing it like this:

QTextCursor cursor = textEdit->textCursor(); // retrieve the visible cursor
cursor.movePosition(QTextCursor::End); // move/modify/etc.
textEdit->setCursor(cursor); // apply visible cursor

QTextCursor cursor = textEdit->textCursor(); // retrieve the visible cursor
cursor.movePosition(QTextCursor::End); // move/modify/etc.
textEdit->setCursor(cursor); // apply visible cursor

To copy to clipboard, switch view to plain text mode 

?