import barcode
from barcode.writer import ImageWriter
from PIL import Image
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=ImageWriter())
output_filename = 'temp_barcode.png'
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)
page_size_pixels = tuple(int(windll.gdi32.GetDeviceCaps(printer_dc.GetHandle(), i) * page_size_mm[i] / 1000) for i in (0, 1))
image = Image.open(barcode_image)
image_width, image_height = image.size
# Calculate the scaling factor to fit the image on the page
scaling_factor = min(page_size_pixels[0] / image_width, page_size_pixels[1] / image_height)
# Calculate the position to center the image on the page
x_pos = (page_size_pixels[0] - scaling_factor * image_width) / 2
y_pos = (page_size_pixels[1] - scaling_factor * image_height) / 2
# Start the print job
h_printer = win32print.OpenPrinter(printer)
h_job = win32print.StartDocPrinter(h_printer, 1, ('Barcode', None, 'RAW'))
win32print.StartPagePrinter(h_printer)
# Print the image
dib = ImageWin.Dib(image)
dib.draw(printer_dc.GetHandle(), (x_pos, y_pos, scaling_factor * image_width, scaling_factor * image_height))
# End the print job
win32print.EndPagePrinter(h_printer)
win32print.EndDocPrinter(h_printer)
win32print.ClosePrinter(h_printer)
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)
print("Barcode printed successfully.")
continue_printing = input("Do you want to print another barcode? (y/n): ")
if continue_printing.lower() != 'y':
break
if __name__ == "__main__":
main()