About inherit

[nesson]

Hello everyone,


I'm a newer for Qt, so pls forgiving the stupid question I asked,thanks in advance.
here is the situation :
I want to structure a class which need inherit from both class QFile and class QXmlStreamReader. then I did like this,

#ifndef STREAMMANAGER_H
#define STREAMMANAGER_H
 
#include <QFile>
#include <QXmlStreamReader>
 
class StreamManager : public QFile ,public QXmlStreamReader
{
public:
 
 
private:
 
};
#endif STREAMMANAGER_H

#ifndef STREAMMANAGER_H
#define STREAMMANAGER_H

#include <QFile>
#include <QXmlStreamReader>

class StreamManager : public QFile ,public QXmlStreamReader
{
public:

	
private:

};
#endif STREAMMANAGER_H

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but now in main.cpp, I want open a xml file, I just don't know how to do that, as usuall, I will use QFile Object, something like "QFile *file = new QFile("/ex/ex.xml");"
, but ,how can I do now?

....
....
int main(int argc, char *argv[])
{
   StreamManager *mym = new StreamManager();
   return app.exec();
}

....
....
int main(int argc, char *argv[])
{
   StreamManager *mym = new StreamManager();
   return app.exec();
}

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one more thing, class StreamManager is a inherited class, and I found I can't create it's own initialized function,what wrong?

Many thanks!

[high_flyer]

I want to structure a class which need inherit from both class QFile and class QXmlStreamReader.

You don't need multiple inheritance here.
QXmlStreamReader takes a QIODevice as parameter.