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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()