QProcess (net use) does not work

Question

I trying to run "net use \server_ip" and parse result. Platform - Windows

I have the following code:

QProcess *prc = new QProcess(0);
QString exec="net use";
QStringList params;
params << "\\\\" + getServerIP();
prc->start(exec,params);
qDebug() << "exec process";
prc->waitForFinished();
qDebug() << prc->readAll() << prc->exitStatus();;
delete connected;

But readAll() reurns "" and exitStatus() returns 0.

Do you guys have any suggestion?

"use" is actually the first parameter. The command is net.exe — Ben Voigt
QProcess uses signals to report failure instead of a return value. Doesn't change that you failed to check the result (result can mean return value, but it can also mean exception, output parameter, global errno, or in this case, a signal). — Ben Voigt

Jerry Coffin Jerry Coffin · Accepted Answer · 2013-01-15T20:16:12

My suggestion would be to delete all of the above, and call WNetAddConnection¹ instead.

At least if I'm interpreting what you have above correctly, it seems to be a really roundabout version of something like this:

WNetAddConnection(getServerIP(), NULL, NULL);

If GetServerIP returns a QString, you may need to add a call to toAscii (or toLatin1, toLocal8Bit, etc.) to convert it to get something `WNetAddConnection knows how to deal with.

Or WNetAddConnection2 or WNetAddConnection3. Microsoft officially recommends the latter, but you don't seem to need any of the extra capabilities they provide.

QProcess (net use) does not work

1 Answers