I thought it needed to be the same.
I got it working. Thank you!

qtext.h

Qt Code:
  1. #ifndef QTEXT_H
  2. #define QTEXT_H
  3.  
  4. #include <QTextEdit>
  5.  
  6. class qText : public QTextEdit
  7. {
  8. Q_OBJECT
  9.  
  10. public:
  11.  
  12. explicit qText(QWidget *parent);
  13.  
  14. private slots:
  15.  
  16. void mouseReleaseEvent(QMouseEvent *event);
  17.  
  18. };
  19.  
  20. #endif // QTEXT_H
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qtext.cpp

Qt Code:
  1. #include "qtext.h"
  2.  
  3. qText::qText(QWidget *parent) :
  4. QTextEdit(parent) {}
  5.  
  6. void qText::mouseReleaseEvent(QMouseEvent *event)
  7. {
  8. copy();
  9. QTextEdit::mouseReleaseEvent(event);
  10. }
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