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import barcode from barcode.writer import SVGWriter import os import platform import subprocess import win32print import win32ui from ctypes import windll def get_printers(): printers = [printer[2] for printer in win32print.EnumPrinters(win32print.PRINTER_ENUM_LOCAL)] return printers def user_select_printer(printers): if not printers: print("No printers found.") return None print("List of printers:") for i, printer in enumerate(printers, start=1): print(f"{i}. {printer}") selected_index = int(input("Enter the number of the printer you'd like to use: ")) return printers[selected_index - 1] def get_product_code(): product_code = input("Enter the product code: ") return product_code.upper() def generate_barcode(product_code): Code128 = barcode.get_barcode_class('code128') barcode_image = Code128(product_code, writer=SVGWriter()) output_filename = 'temp_barcode.svg' barcode_image.save(output_filename) return output_filename def print_barcode(printer, barcode_image): # Get the printer DC printer_dc = win32ui.CreateDC() printer_dc.CreatePrinterDC(printer) # Get the page size and image size in pixels page_size_mm = (25.4, 54) dpi = 300 # Use a fixed DPI value (adjust it according to your printer's DPI) page_size_pixels = tuple(int(dpi * page_size_mm[i] / 25.4) for i in (0, 1)) # Load the SVG image with open(barcode_image) as f: svg_data = f.read() # Create a Windows metafile from the SVG image hdc = win32ui.CreateDC() hdc.CreatePrinterDC(printer) hdc.StartDoc(barcode_image) hdc.StartPage() win32ui.PlayMetaFile(hdc.GetSafeHdc(), svg_data.encode('utf-8')) hdc.EndPage() hdc.EndDoc() hdc.DeleteDC() def main(): printers = get_printers() selected_printer = user_select_printer(printers) if selected_printer is None: return while True: product_code = get_product_code() barcode_image = generate_barcode(product_code) print_barcode(selected_printer, barcode_image) os.remove(barcode_image) # Delete the barcode image after printing if __name__ == "__main__": main()