CUPS for WebAssembly

wild-linkle

Hi, I'm new to QT and I'm trying to run the CUPS API in my QT app and compile it with WebAssembly. However, it seems that an exception "getpwnam: TODO" was thrown.

I tried to run this code below in 5.14.1 but it seems to fail after QPrinterInfo::availablePrinters() was called.

    int count = 0;
    qDebug() << "before QPrinterInfo";
    QList<QPrinterInfo> info_list = QPrinterInfo::availablePrinters();
    qDebug() << "after QPrinterInfo";
    foreach ( QPrinterInfo info, info_list )
    {
        count++;
        qDebug()<< "Printer_"<< count<< ": " << info.printerName() << "State: " << info.state();

        if(info.printerName() == "YOUR_PRINTER_NAME")
        {
            if (info.state() == 0)
                qDebug()<< "Printer Idle";
            else if (info.state() == 1)
                qDebug()<< "Printer Active";
            else if (info.state() == 2)
                qDebug()<< "Printer Aborted";
            else if (info.state() == 3)
                qDebug()<< "Printer Error";
            else
                qDebug()<< "Printer Undefined Error";
        }
    }

I also tried the code provided by the cups API documentation but failed after calling the function cupsGetDests

cups_dest_t *dests;
int num_dests = cupsGetDests(&dests); // exception getpwnam: TODO is thrown

Is there a way to determine the number of printers installed and access their corresponding information?

lorn.potter

@wild-linkle said in CUPS for WebAssembly:

getpwnam

Wasm lives in the same sandbox as javascript. Accessing printers and other hardware is not supported at this time.