我在我的项目中使用 C++ 和 Qt,我的问题是 QObject::connect 函数没有将信号连接到插槽。我有以下课程:
class AddCommentDialog : public QDialog
{
Q_OBJECT
public:
...some functions
signals:
void snippetAdded();
private slots:
void on_buttonEkle_clicked();
private:
Ui::AddCommentDialog *ui;
QString snippet;
};
我的主窗口的一部分:
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private slots:
void commentAddedSlot();
void variableAddedSlot();
...
private:
AddCommentDialog *addCommentDialog;
...
};
Ant最后一个对话框;
class AddDegiskenDialog : public QDialog
{
Q_OBJECT
public:
...
signals:
void variableAdded();
private slots:
void on_buttonEkle_clicked();
private:
Ui::AddDegiskenDialog *ui;
...
};
在主窗口构造函数中,我连接信号和插槽:
addCommentDialog=new AddCommentDialog();
addDegiskenDialog=new AddDegiskenDialog();
connect(addDegiskenDialog, SIGNAL(variableAdded()), this, SLOT(variableAddedSlot()));
connect(addCommentDialog, SIGNAL(snippetAdded()), this, SLOT(commentAddedSlot()));
关键是我的commentAddedSlot 已成功连接到它的信号,但commentAddedSlot 失败。有 Q_OBJECT 宏,没有关于 no x slot 的警告。除此之外,receives(SIGNAL(snippetAdded())) 给了我 1,但 receivers(SIGNAL(variableAdded())) 给了我 0,我使用了命令 qmake -project; qmake 和 make 完全编译。我错过了什么?