![]() PSP_DEVICE_INTERFACE_DETAIL_DATA interface_detail ĭevs = SetupDiGetClassDevs(&intfce, 0, 0, DIGCF_PRESENT |ĭevinterface. * declared an initialised as a static locally, since windows does not include it * This define is required so that the GUID_DEVINTERFACE_USBPRINT variable is While the job is still active cups web interface says 'processing - sending data to the printer' for the job nothing gets printed, but the green led on the printer blinks as it does when printing (so it seems it's receiving something). ![]() There is the final code given in the article: /* Code to find the device path for a usbprint.sys controlled With a bit of hacking the sample code there seemed to work. The project provides tutorials for other platforms (Ubuntu, OS X) as well.Īfter some more digging around, I found this interesting article on using Windows printer functions provided by usbprint.sys. These instructions are also available here, with screenshots, as part of a Java open source raw printing tutorial. Now with your raw printing application, use the newly created printer. Give the printer a name that differentiates it from the one already created, i.e.Use the driver that is currently installed.Manufacturer: Generic, Printer: Generic / Text Only.USB001) Note: Some versions of Windows have a checkbox to autodetect, if it's there, uncheck this. Local Port, Select the port just created (i.e. Using the Devices and Printers, add a second printer.Check the printer properties to see which USB port it is using. Install the appropriate driver for your USB printer.Note, many applications, such as notepad are incapable of printing raw, so your application needs to support this as well. It's built into most OSs, printing raw via USB is just a bit less obvious than Ethernet and COM/LPT. Is there a way to bypass the spooler and output data straight to this Ideally, I'd like to be able to use the printer like it was a serial printer - open the port and shove data in. Is there a way to bypass the spooler and output data straight to this USB printer? My research so far hasn't turned up anything likely looking in the Windows API. When I tried to print a test page, it just gets stuck sending the data. It let me customise some features - extra paper trays/finishers etc. I selected the above ppd driver from the folder Id saved it to. Disabling spooling in the driver doesn't help, it just means that the program hangs while the job is passed through the spooler and printing completes. I plugged in the printer via usb (I figured Id make the networking work later) and found the printer easily. This takes up to 10 seconds to get through the spooler, obviously too slow. It turns out that every time I output some data using the MS rawprn.exe code it is actually spooled as a print job and then transmitted to the printer. I'm using some Microsoft demo code to output the raw data to the printer and this works great, bar one issue: the spooler. I've had a play with the ZPL language and I can successfully generate bitmap data and dump out my bitmap a line (or few lines) at a time by outputting the ZPL as raw data. For my application I need to print plotter type traces continuously until the user hits a stop button. There's a program (called PCLWorks) that has a demo that would allow you to view the printed output of files, and there are many programs that allow you to view contents of files (such as Notepad++).I'm experimenting with a Zebra TTP8200 thermal printer. However, netcat requires being run from a command-line environment, such as Cygwin, which would require more programs to install on your computer.Īlso, if the device is outputting pure PCL, you may be unable to determine what information your document contains, or even if it contains any information at all. In your specific case, you would want to use netcat to output the information from the special machine to a file on your PC. Netcat allows your computer to listen for information on a specific port. You might also be able to use "netcat" to receive the document. You would need to be certain that the virtual printer has the same drivers as one of the printers your special device is able to print on. The simplest solution may be to set up a new printer that simply prints to file, and direct the information from your USB cable to that virtual printer.
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