Qt报这个错误,In member function 'virtual void DoubleSlider:.mousePressEvent(QMouseEvent*)":
只需要加上相对应的头文件即可:
#include <QMouseEvent>
Qt报这个错误,In member function 'virtual void DoubleSlider:.mousePressEvent(QMouseEvent*)":
只需要加上相对应的头文件即可:
#include <QMouseEvent>