QTextCursor cursor = textDocument->textCursor(); cursor.setPosition(0);
QTextCursor cursor = textDocument->textCursor(); cursor.setPosition(25, QTextCursor::MoveAnchor);This code sets the cursor position to the 25th character in the document. The second parameter is the operation to be performed on the current selection. In this case, we are using the `QTextCursor::MoveAnchor` operation to move the anchor of the selection to the new position. Package library: This code uses the Qt framework's QTextCursor class, which is part of the QtGui module.