On Tue, May 12, 2009 at 01:21:18PM -0700, gn pr wrote:
> I have this code :
>
> QByteArray l ("D:\\grace.jpg");
>
> #include <QtCore/QCoreApplication>
> int main(int argc, char *argv[])
> {
> QCoreApplication a(argc, argv);
>
> FILE * origen;
>
> origen = fopen("d:\\grace.jpg", "rb");
>
> unsigned char * linea;
>
> QByteArray * _content = new QByteArray();
[There is no need to dynamically allocate a QByteArray locally]
> int _fileSize = 0 ;
>
> while(!feof(origen) )
> {
> fread(linea,1,1, origen) ;
> QChar caracteres((unsigned char )*linea);
> _content->append(caracteres) ;
> _fileSize += 1;
> }
>
> fclose(origen) ;
>
> QByteArray tmp = _content->toBase64();
>
> QByteArray tmp2 = tmp.fromBase64(tmp) ;
>
> FILE * sal ;
>
> sal = fopen ("copia.jpg", "ab+");
>
> fwrite(&tmp2, _fileSize, 1, sal);
&tmp2 is the address of the QByteArray, not related to its contents.
tmp2.data() _might_ work.
Andre'
PS: Why use fread/fwrite at all, and not, say QFile::readAll()
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