当你在使用Qt框架时遇到错误 "class contains q_object macro but does not inherit from qobject",这通常意味着你的类虽然包含了Q_OBJECT宏,但并未从QObject或其子类继承。这个宏是Qt元对象系统的一部分,它允许对象进行信号和槽的通信、属性系统、动态类型信息等功能,但仅当类继承自QObject时才有效。 下面是一...
直译是:类声明没有Q_OBJECT 宏。 class CError1 : public QObject { signals: void OnButClicked(); }; class CError2 : public QObject { signals: void OnButClicked(); }; class CError1 : public QObject { Q_OBJECT signals: void OnButClicked(); }; 类声明加上Q_OBJECT就好了。 class CE...
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简介: error : Class declarations lacks Q_OBJECT macro 直译是:类声明没有Q_OBJECT 宏。 class CError1 : public QObject { signals: void OnButClicked(); }; class CError2 : public QObject { signals: void OnButClicked(); }; class CError1 : public QObject { Q_OBJECT signals: void On...
Last but not least, QObject provides the basic timer support in Qt; see QTimer for high-level support for timers.Notice that the Q_OBJECT macro is mandatory for any object that implements signals, slots or properties. You also need to run the Meta Object Compiler on the source file. We...
The class declaration does not have a Q_object macro. Class Cerror1:public Qobject { Signals: void onbutclicked (); }; Class Cerror2:public Qobject { Signals: void onbutclicked (); }; Class Cerror1:public Qobject { Q_object Signals: void onbutclicked (); }; The class ...
I don't know if it's actually needed, but might be safer adding it. Member MKleusberg commented Feb 11, 2019 Pretty sure it's not needed - everything's working after all 😉 However, if I remember correctly the Qt moc gets confused if we add the Q_OBJECT macro without pulling ou...
SVsMacroRecorder SVsMacros SVsMainWindowDropTarget SVSMDCodeDomProvider SVSMDDesignerService SVSMDPropertyBrowser SVSMDTypeResolutionService SVsMenuEditor SVsMenuEventsService SVsMonitorUserContext SVsMRUItemsStore SVsNavigateToService SVsObjBrowser SVsObjectManager SVsObjectSearch SVsOpenProjectOrSolutionDlg SVsOutput...
Last but not least, QObject provides the basic timer support in Qt; see QTimer for high-level support for timers. Notice that the Q_OBJECT macro is mandatory for any object that implements signals, slots or properties. You also need to run the Meta Object Compiler on the source file. We...
They all have in common the demographic, social- and macro- economic information but differ in the content of the academic information: a base dataset (S0), with academic information restricted to the students’ path at the time of enrollment in higher education; a dataset that additionally ...