Includes not found

cloudbuster

OK but where does it say (Qt documentation) that the following will give inclusion errors

@
#ifndef LOTTERY_H
#define LOTTERY_H

#include <QtGui/QWidget>
#include "ui_lottery.h"
#include <QMap>
#include <QPaintEvent>
#include <iostream>...........................................// unresolved inclusion
#include <fstream>...........................................// unresolved inclusion
//using namespace std;
ofstream fout("/home/qt4user/landon.txt");......// ofstream could not be resolved
class Lottery : public QWidget
{
Q_OBJECT

public:
Lottery(QWidget *parent = 0);
~Lottery();

private:
Ui::LotteryClass ui;........................................// Ui::LotteryClass could not be resolved
void paintEvent( QPaintEvent * );
QMap<int,int> histo;
QPaintEvent* qpaintevent;
void drawShapes( QPainter *p );
private slots:
void selectClicked();
};

#endif // LOTTERY_H
@

[EDIT: please wrap code in @-tags, Volker]

goetz

Some administrative remarks first:

I split off your question off "this older thread":/forums/viewthread/12088 where you had posted it first. Please do not add new questions to old threads, especially in case they are marked "solved" already
please wrap your code in @-tags, this way it is formatted nicely

#including iostream and fstream shouldn't lead to any errors. Try with a simple main method only, without any Qt related stuff to double check this.

If your Ui::LotteryClass is not known, check in the designer if your form is named LotteryClass.

ChrisW67

bq. OK but where does it say (Qt documentation) that the following will give inclusion errors

Why would you expect the Qt documentation to tell you how why your compiler pre-processor does not find standard C++ headers? This has nothing to do with Qt.

As for Ui::LotteryClass, that's dependent on the include file ui_lottery.h generated from your lottery.ui file. Since the pre-processor finds ui_lottery.h it is clear that the top object defined in your UI is not call LotteryClass.

cloudbuster

I'm sorry but what are @-tage???

cloudbuster

guessing @-tags

@source
lda
sta
x=y
@source

mlong

You simply place a single @ character on the line immediately before and immediately after a block of code. That forces the code to be formatted differently. If you hit edit on your initial post, you can see how Volker inserted them around your code block above.

koahnig

There is also some description in the "forum help":http://qt-project.org/wiki/ForumHelp#e3f82045ad0f480d3fb9e0ac2d58fb01