Untitled
unknown
plain_text
2 years ago
1.5 kB
9
Indexable
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))
image = Image.open(barcode_image+".png")
# Rotate the image by 90 degrees
image = image.rotate(90, expand=True)
image_width, image_height = image.size
# Calculate the new size while maintaining the aspect ratio
scaling_factor = min(page_size_pixels[0] / image_width, page_size_pixels[1] / image_height)
new_size = (int(image_width * scaling_factor), int(image_height * scaling_factor))
# Resize the image
resized_image = image.resize(new_size, Image.LANCZOS)
resized_width, resized_height = resized_image.size
# Calculate the position to center the image on the page
x_pos = int((page_size_pixels[0] - resized_width) / 2)
y_pos = int((page_size_pixels[1] - resized_height) / 2)
# Start the print job
printer_dc.StartDoc(barcode_image+".png")
printer_dc.StartPage()
# Print the image
dib = ImageWin.Dib(resized_image)
dib.draw(printer_dc.GetSafeHdc(), (x_pos, y_pos, resized_width, resized_height))
# End the print job
printer_dc.EndPage()
printer_dc.EndDoc()
printer_dc.ClosePrinter()
print('Barcode printed successfully')
Editor is loading...