Discovery of printers in the network?

[surwassu]

Hi high_flyer,

I have written code to show one of the available printer name ,I have used QLineText to show printer name
but getting error in following part of code:

void qprint::give_name_of_printer()
 
{   
    QPrinterInfo PrinterInfo;
    QPrinter *printer=new QPrinter(QPrinter::ScreenResolution);
 //line no 33
  QList<QPrinterInfo> pinfo;
//line 34  
QString str;
  pinfo= PrinterInfo.availablePrinters(); // transferring QList into temp list pinfo   
  str=pinfo.value(1).printerName();//value function will return Qprinterinfo object at 2nd location & that object 
                                                  // is used get printer name & stored in CString object
  Name_edit->setText(str);//This is used to set text to printer name
 
}

void qprint::give_name_of_printer()

{   
    QPrinterInfo PrinterInfo;
    QPrinter *printer=new QPrinter(QPrinter::ScreenResolution);
 //line no 33
  QList<QPrinterInfo> pinfo;
//line 34  
QString str;
  pinfo= PrinterInfo.availablePrinters(); // transferring QList into temp list pinfo   
  str=pinfo.value(1).printerName();//value function will return Qprinterinfo object at 2nd location & that object 
                                                  // is used get printer name & stored in CString object
  Name_edit->setText(str);//This is used to set text to printer name

}

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I am getting error as incomplete type and cannot be defined 'class QList<QPrinterInfo>' at line no 33
can you please help me out...

Thanks
Regards,
Sumit

[wysota]

Did you remember to #include the proper header file?

[surwassu]

thanks alot........

[ChrisW67]

You also don't need to create an instance of QPrinterInfo (line 4) in order to use the static method QPrinterInfo::availablePrinters().

[Santosh Reddy]

You code is fine, it will work, may be you missed to include <QList> file, just add it and any other file which is required, you should have it running.

Tip:
when you read the printer name, make sure the list contains the printers on the first hand, else your program will crash

...
    str=pinfo.value(1).printerName(); // this is not suggersted;
...
    if(pinfo.count() > n)
        str=pinfo.value(n).printerName();// get nth printer name
...

...
    str=pinfo.value(1).printerName(); // this is not suggersted;
...
    if(pinfo.count() > n)
        str=pinfo.value(n).printerName();// get nth printer name
...

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