[SOLVED]Fread convert to qt

[Salvatello]

I have code in c:
@
FILE *f;
_ENT rec; (_ENT is a my structur)
fread (&rec,1,sizeof(rec),f)
@

how to convert code in code qt??

[tucnak]

Hey, ~Salvatello!

I suppose, you should read some documentation about QFile and QTextStream. If I understand you correctly, the problem you want to solve is trivial and requires basic stream reading from the file.

Good luck!

[Salvatello]

I have a struct:
@typedef struct {
unsigned short idrec;
char dir;
unsigned char flag;
double x1,
y1,
x2,
y2,
cx,
cy,
raggio;
} _ENT;@

and FILE *f;
_ENT rec;

then i have:
@fread (&rec,1,sizeof(rec),f);
if (rec.idrec != AAAA)
{
printf("ERROR");
}
....
...
...
@

how is this translated code in qt.
How can I read from a file byte of a certain size and save them in the struct _ENT ????

[raven-worx]

see "QDataStream":http://qt-project.org/doc/qt-4.8/qdatastream.html#details
this page should contain all you need.

You could implement the data stream operators (<<) for your _ENT struct.

[Salvatello]

ho risolto così:
@ QFile filefile(percorsoFile);
filefile.open(QIODevice::ReadOnly);
filefile.read((char*)&rec,sizeof(rec));
qDebug()<<rec.idrec;
qDebug()<<rec.dir;
qDebug()<<rec.flag;
qDebug()<<rec.x1;
qDebug()<<rec.x2;
qDebug()<<rec.y1;
qDebug()<<rec.y2;
qDebug()<<rec.cx;
qDebug()<<rec.cy;
qDebug()<<rec.raggio;
filefile.close();@