Qt's slot(?) inserts redundant namespace into connect - c++

Question

The problem I get is the following error message when calling connect, with MRC being the redundant namespace which I think Qt shouldn't have added - boundSubWindow isn't defined inside MRC. My understanding is the slot function isn't found, because MRC:: was prepended to it's name.
QObject::connect: No such slot MRC::boundSubWindow::myFunc(unsigned char *, int) in z:\mrc\mrc\mrc.h:23
QObject::connect: (receiver name: 'MRCClass')
The code is
---------- mrc.h ----------
#include <QtWidgets/QMainWindow>
#include "ui_MRC.h"
#include "myThread.h"
#include "boundsubwindow.h"
class MRC : public QMainWindow
{
Q_OBJECT
public:
MRC(QWidget *parent = Q_NULLPTR) : QMainWindow(parent)
{
ui.setupUi(this);
m_Thread = new myThread;
m_Subwindow = new boundSubWindow;
connect(MRC::m_Thread, SIGNAL(mySignal(char *, int)),
this, SLOT(boundSubWindow::myFunc(unsigned char *, int)));
}
static inline myThread *m_Thread;
boundSubWindow *m_Subwindow;
private:
Ui::MRCClass ui;
};
---------- boundsubwindow.h ----------
#include <QMdiSubWindow>
class boundSubWindow : public QMdiSubWindow
{
public:
boundSubWindow() {}
public slots:
void myFunc(unsigned char *, int);
};
---------- boundsubwindow.h ----------
void boundSubWindow::myFunc(unsigned char *, int) {}
---------- myThread.h ----------
#include <QThread>
class myThread : public QThread
{
Q_OBJECT
public:
myThread() {}
signals:
void mySignal(char *, int);
};
I've skipped an auto generated main.cpp for Qt GUI application, and the MRC.ui - auto generated then added a QMdiArea with Qt Creator. I'm using Visual Studio 2017 and Qt 5.13

Answer 1

This is wrong:
connect(MRC::m_Thread, SIGNAL(mySignal(char *, int)),
this, SLOT(boundSubWindow::myFunc(unsigned char *, int)));
boundSubWindow::myFunc is not slot of this. Also, specifying the namespace for m_Thread member variable seems quite redundant. You probably want this:
connect(m_Thread, SIGNAL(mySignal(char *, int)),
m_subWindow, SLOT(myFunc(unsigned char *, int)));
Additionally, add Q_OBJECT macro to boundSubWindw class and re-run qmake explicitly (you have to do that when adding these Qt macros to files which didn't previously have them).
Also, you should use the new connect syntax so you get compile time errors instead of run time errors:
connect(m_Thread, &myThread::mySignal,
m_subWindow, &boundSubWindow::myFunc);
Finally, it's common Qt convention to have class names start with capital, so consider renaming to BoundSubWindow and MyThread, if you want other Qt programmers to be able to easily read your code.