自定义

#pragma once
 
#include <qwidget>
 
class TstUsrCtrl : public QWidget
{
	Q_OBJECT
 
	QPoint oldPos_;
	QPoint curPos_;
 
public:
	explicit TstUsrCtrl(QWidget *parent = nullptr);
	~TstUsrCtrl();
 
	void paintEvent(QPaintEvent* event);
	void mousePressEvent(QMouseEvent* event);
	void mouseMoveEvent(QMouseEvent* event);
	void mouseReleaseEvent(QMouseEvent* event);
	void mouseToPosition(QMouseEvent* event);
};
</qwidget>