service - Qt QDesktopServices::openUrl() error 2 -

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i have problem open file using qdesktopservices::openurl() function.

i have code generates absolute address of file when try run i´m getting shellexecute error 2.

this code i´m using:

void openfilemainwindow::runsong() { qaction *act = qobject_cast<qaction *>(sender());  qstring addr = "file:///"; addr.append(qstring(act->data().tostring()));  qbytearray temparray  = addr.toutf8(); const char * addrw    = temparray.data();  qmessagebox::warning(this, tr("info"), tr("you trying open file:\n%1").arg(addrw), qmessagebox::ok);  qdesktopservices::openurl(qurl(addrw, qurl::tolerantmode));

}

when tried write path manualy "file:///.../file.mp3" working good, why generated address not? tried qstring addr only, same result.

for sure encoding problem. qurl takes qstring first parameter. no idea remained initial qstring addr after squeezed qbytearray , take const char * address , let qurl convert qstring.

any particular reason why don't pass addr qurl? without temparray? addrw?


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