Introduction - If you have any usage issues, please Google them yourself
#ifndef LRCWINDOW_H
#define LRCWINDOW_H
#include <QLabel>
#include <QTimer>
class lrcWindow : public QLabel
{
Q_OBJECT
public:
lrcWindow(QWidget*parent)
QAction*exit
void setTime(int num){time num }
void setLrcWidth()
QTimer*timer
private:
QPoint dragPosition
int time
qreal length
qreal lrcWidth
protected:
void mousePressEvent(QMouseEvent*)
void mouseMoveEvent(QMouseEvent*)
void contextMenuEvent(QContextMenuEvent*ev)
void paintEvent(QPaintEvent*)
private slots:
void timeout()
}