QTextCursor

1. QTextCursor QTextDocument::find ( const QString & subString, const QTextCursor & cursor, FindFlags options = 0 ) const

Returns a cursor with the match selected if subString was found; otherwise returns a null cursor.

How can we check that the cursor is a null cursor or the cursor of the selected substring.
if(cursor) ---giving error.

Use QTextCursor::isNull:

Code:

---

QTextCursor cursor = textDocument->find( /* ... */ );
if (!cursor.isNull())
{
  // text found!
}

---