[Solved] Problem with Q_OBJECT

[kamilus]

I have such a class myLabel:

header:
@#ifndef MYLABEL_H
#define MYLABEL_H
#include <QLabel>
#include <QObject>

class myLabel : public QLabel
{
//Q_OBJECT - when i uncomment it coompilator show me: undefined reference to 'vtable for myLabel'

public:
myLabel();
bool flag_grid;

private:
//bool flag_grid;
bool flag_markers;

protected:
void paintEvent(QPaintEvent *e);
};

#endif // MYLABEL_H@

source file:
@#include "myLabel.h"
#include <QPainterPath>
#include <QPainter>
#include <QLabel>
#include <QPixmap>

myLabel::myLabel()
{

}
do
void myLabel::paintEvent(QPaintEvent *e){

}@

I would like to have a slots in this class but without Q_OBJECT it's impossible what i should add to this code to make it run??

[tdmatsu]

have you tried running qmake after adding Q_OBJECT?

[kamilus]

when i add Q_OBJECT to my header the compilator show me:
undefined reference to 'vtable for myLabel'
collect2: ld returned 1 exit status

[rokemoon]

You can solve the problem if delete the folder where Qt save object files, and then recompile your project.
In my case the folder has name "projectName-build-desktop".

[kamilus]

i think it helped, but it's a little bit strange. In a minute i will do a slot and check this, but now it is compiling without any errors. Thanks a lot

[kamilus]

it's work, once again thank You

[rokemoon]

You are welcome :-)

[DenisKormalev]

As it was suggested you don't need to delete something by hands. Rerunning qmake (not compiler) should help you.
And if problem is solved don't forget to mark it as [solved].

[kamilus]

Hey Denis, i know it's stupid question but where i should click to mark this thread as solved?? I don't see such option...
[quote author="Denis Kormalev" date="1306694082"]As it was suggested you don't need to delete something by hands. Rerunning qmake (not compiler) should help you.
And if problem is solved don't forget to mark it as [solved].[/quote]

[DenisKormalev]

Simply edit your first post and add [solved] to title (better add it to beginning not to end of title)

[rokemoon]

@Denis Kormalev: Oh, run qmake again work. I'm deleting folder by hands, because think that if i recompile all it call qmake too.
@kamilus just edit your post and add to begin [solved]