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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()
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