QT5编程提示QObject::connect: No such slot QPushButton::renameButton()
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问题:在项目中添加了一个自定义的类MyButton,继承自QPushButton。在connect映射slot函数时,提示此错误。
解决方法:在MyButton类里面开关加上Q_OBJECT宏。才能使用signal和slot。
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