[Qt-interest] Runtime Error :- connect: No such slot (Update)

[Wm. G. Urquhart]

Steven Doerfler wrote:
> Wm. G. Urquhart wrote:
>> when I 're-wire' my connect(...) to this slot it works, however; if I 
>> change the code to use setLegendIndex(int) the connect(...) fails!
>>   
> Try using QObject::dumpObjectInfo to display all your signal connections
> just after sending the signal.  Compare the working and not-working
> connections in the output.
> 
> Steven

Hi Steven,

Well I've done what you suggest (I think correctly) and this is the 
output I get from both. I don't purport to say I understand the 
differences so any help in the 'interpretation' would be appreciated.

-- NON Working Version --

pTest = new SignalTest() ;
if (connect(pTest, SIGNAL(Boo(int)), this, SLOT(setLegendIndex(int)), 
Qt::ConnectionType::QueuedConnection))
{
	pTest->Start() ;
}
QObject::dumpObjectInfo() ;

-- Output ---

Object::connect: No such slot MyApp::setLegendIndex(int) in myapp.cpp:302
Object::connect:  (receiver name: 'MyApp')
OBJECT MyApp::MyApp
   SIGNALS OUT
         signal: destroyed(QObject*)
         signal: destroyed()
         signal: customContextMenuRequested(QPoint)
         signal: iconSizeChanged(QSize)
           --> QToolBar::mainToolBar _q_updateIconSize(QSize)
         signal: toolButtonStyleChanged(Qt::ToolButtonStyle)
           --> QToolBar::mainToolBar 
_q_updateToolButtonStyle(Qt::ToolButtonStyle)
   SIGNALS IN
           <-- QAction::action_About  actionAbout()
           <-- QAction::action_Exit  actionExit()

-- Working Version ---

pTest = new SignalTest() ;
if (connect(pTest, SIGNAL(Boo(int)), this, SLOT(typeChanged(int)), 
Qt::ConnectionType::QueuedConnection))
{
	pTest->Start() ;
}
QObject::dumpObjectInfo() ;

-- Output ---

OBJECT MyApp::MyApp
   SIGNALS OUT
         signal: destroyed(QObject*)
         signal: destroyed()
         signal: customContextMenuRequested(QPoint)
The thread 'SignalTest' (0x1094) has exited with code 0 (0x0).
         signal: iconSizeChanged(QSize)
           --> QToolBar::mainToolBar _q_updateIconSize(QSize)
         signal: toolButtonStyleChanged(Qt::ToolButtonStyle)
           --> QToolBar::mainToolBar 
_q_updateToolButtonStyle(Qt::ToolButtonStyle)
   SIGNALS IN
           <-- SignalTest::unnamed  typeChanged(int)
           <-- QAction::action_About  actionAbout()
           <-- QAction::action_Exit  actionExit()

I have crippled 99% of the application by commenting out the all of the 
applications connect(...)ions at start up along with other stuff, but 
still I get nothing.