OpenPrinter() error. - Programmers Heaven

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OpenPrinter() error.

I'm writing a little Qt application (mingw) that prints to a Dymo label printer with two sets of labels (a "Left" paper source and a "Right" paper source). As the paper sources are 'non-standard', I'm not able to select them with the Qt framework, and I'm not able to send raw data directly to the printer to send the ESC codes to switch labels.

I found an example of how to directly send the data to the printer ("RawDataToPrinter"), but when it gets to statement OpenPrinter(...) the linker emits the error "undefined reference to 'OpenPrinterW@12'.

I can see the definition of OpenPrinterW(..) in winspool.h, but have no idea where the '@12' comes from.

Any ideas?

Thanks
Doug

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