open a document

hi.
I would like to know if it possible to openb a document ( exp. pdf ) from a Qt application.
for example when the user click on an action (help action) a file.pdf( documentation ) should be opened..??
I tried with QProcess but I didnt get a result:

Code:

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QProcess myprocess;
QString app="//path/file.pdf";
myprocess.start(app);

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please if some one could help!!

Use QDesktopServices::openUrl() and QUrl::fromLocalFile().

thanks ..
I tried the code:

Code:

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QDesktopServices desk;
desk.openUrl(QUrl::fromLocalFile("test.pdf"));

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but it doesnt open anythg..

test.pdf is in the same directory as the .exe .. but it doesnt work??

I dont know where is the error

Oki I found it:
I used only

Code:

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desc.openUrl(QUrl("test.pdf"));

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it works!!
thanks for help

First of all, allocating an instance of QDesktopServices is pointless because QDesktopServices::openUrl() is a static method. QUrl::fromLocalFile("test.pdf") won't work because it would correspond to "file:///test.pdf".

I use this way and run any time on each fullpath url

Code:

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/*  tr macro on no Q_OBJECT class !!!! */
static inline void OpenDesk( QUrl loc )
{
    #if defined Q_WS_MAC
    /* direct to open */
    QProcess *m = new QProcess();
    QStringList macs;
    macs << loc.toString();
    m->startDetached(QString("open") , macs );
    return;
    #endif 
 
#if defined Q_WS_WIN
    QString fullFileName = loc.toString();
 
    if (fullFileName.startsWith("http://", Qt::CaseInsensitive) ||
        fullFileName.startsWith("https://", Qt::CaseInsensitive) ||
        fullFileName.startsWith("ftp://", Qt::CaseInsensitive) ||
        fullFileName.startsWith("news://", Qt::CaseInsensitive) ||
        fullFileName.startsWith("mailto:", Qt::CaseInsensitive) ||
        fullFileName.startsWith("webdav://", Qt::CaseInsensitive)  )
       { 
 
       } else {
         fullFileName.prepend("file:///");     /* or qurl to localfile */
       }
    bool wr = QDesktopServices::openUrl(QUrl(fullFileName));
    if (!wr) {
    QMessageBox::warning(0,QString("Error"),
                QString("Window Unable to open action file or dir  %1").arg(loc.toString()));
    }
return;
#endif
    /* linux */
     bool r = QDesktopServices::openUrl(loc);
    if (!r) {
    QMessageBox::warning(0,QString("Error"),
              QString("Linux Unable to open action file or dir  %1").arg(loc.toString()));
    }
 
}

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