[Qt-interest] how can I call a SLOT function and abitrary value parameter.

[John McClurkin]

Giancarlo Amati wrote:
> Hello everybody,
> 
> I made my GUI in which I have a main menu. One of the voices has 2 
> possible suboptions to be chosen:
> 
> VolumeRendering ---> MIP
>                          |__>COMPOSITE VR
> 
> 
> so I created the correspondent Actions and then I have my CMainWindows 
> class derived from a QMainWindow where I added one slot:
> 
> OpenVR(int opt) where I would OPT be 1 if MIP is chosen, or 2 if 
> COMPOSITE_VR is Chosen.
> 
> now I to create the signal connection I wrote:
> 
> QObject::Connect(Ui.ActionMIP,SIGNAL(triggered()), myWin, SLOT(OpenVR(1)));
> QObject::connect(Ui.ActionCOMPOSITE,SIGNAL(triggerer()),myWin,SLOT(OpenVR(2)));
> 
> where OpenVR(int opt) is a slot fuction created in CMainWindows class.
> 
> Compilation is OK, but unfortunately the Connect returns error message 
> like "OpenVR (2)" doesn't exists. So my question is how can I call a 
> SLOT function and passing MY arbitrary value depending on the voice in 
> my menu?

Your calls to connect are incorrect. They should be:

QObject::Connect(Ui.ActionMIP,SIGNAL(triggered(bool)), myWin, 
SLOT(OpenVR(bool)));
QObject::connect(Ui.ActionCOMPOSITE,SIGNAL(triggerer(bool)),myWin,SLOT(OpenVR(bool)));
You can't declare values in the connection statements, only the types of 
the arguments of the signals and slots.

> 
> Kind Regards.
> 
> 
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