problem with userdefined slot definition in QT4.4.3

Hi,

1. I created a project(LayoutDesign) in QT4.4.3,it created LayoutDesign.ui ,LayoutDesign.h,LayoutDesign.cpp and main.cpp file
2. I opened the ui file using QTDesigner and i added 3 widgets(LineEdit1,Pushbutton,LineEdit2) on to it.
3. my intention is when i click Pushbutton it should take the input from LineEdit1 and make some calculations and displayed in LineEdit2.
4. Using signal and slot mechanism i connected the widgets in below manner in ui_LayoutDesign.h file

Code:

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QObject::connect(PushButton, SIGNAL(clicked()), LayoutDesign, SLOT(Convert()));
QObject::connect(LineEdit1, SIGNAL(activated(int)), LayoutDesign, SLOT(Convert()));
QObject::connect(LineEdit2, SIGNAL(activated(int)), LayoutDesign, SLOT(Convert()));

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The Convert() slot specified in the connect function is newly added slot(it means it is not predefined).

Here My question is where to define the Convert() slot in my code.:(

I think it will be better if you declare userdefined function prototype in .h file & function in .cpp file and use SIGNAL and SLOT mechanism.

Hi,

I am pretty newqt user but I think that your problem could be in the receiver object. You can try it without passing receiver name.

hii

The meathod i know is :

1.In your .h(not ui.h) file declare:
private slots:
void Convert();

2. In your .cpp file add :
connect(PushButton, SIGNAL(clicked()), LayoutDesign, SLOT(Convert()));

Hope you understand
u Happ

Thank u aj, now i got the solution with ur reply