qt - Error Handling in QPrinter -

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when printing pdf qtextdocument , qprinter there way of detecting errors (e.g. not being able write pdf file)? i'm using following code:

qtextdocument document; qprinter printer( qprinter::highresolution ); printer.setoutputformat( qprinter::pdfformat ); printer.setoutputfilename( filename ); document.print( &printer );

in docs you'll find qprinter::printerstate. can do:

if (printer.printerstate() == qprinter::error)     // error handling

i admit that's not lot work with, there 4 qprinter::printerstate's. might want best avoid errors in first place. detailed description in doc states:

note setting parameters paper size , resolution on invalid printer undefined. can use qprinter::isvalid() verify before changing parameters.

additionaly, check if filename setting exists using qfile::exists. also, when setting can call , handle qprinter::supportedresolutions(), qprinter::supportedpapersources() , qprinter::supportsmultiplecopies(). of course, printing pdf might not have worry these.


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