Python win32打印示例

 # -*- coding:utf-8 -*-
 # Author: Pete Yim<xpHook@gmail.com>
 # Date  : 13-8-22
 # Copyright (c) 2013 RCSH Systems Incorporated. All rights reserved.
 import win32print
 import win32ui
 from PIL import Image, ImageWin
 import _imaging
 
 #
 # Constants for GetDeviceCaps
 #
 #
 # HORZRES / VERTRES = printable area
 #
 HORZRES = 8
 VERTRES = 10
 #
 # LOGPIXELS = dots per inch
 #
 LOGPIXELSX = 88
 LOGPIXELSY = 90
 #
 # PHYSICALWIDTH/HEIGHT = total area
 #
 PHYSICALWIDTH = 110
 PHYSICALHEIGHT = 111
 #
 # PHYSICALOFFSETX/Y = left / top margin
 #
 PHYSICALOFFSETX = 112
 PHYSICALOFFSETY = 113
 
 printer_name = win32print.GetDefaultPrinter ()
 file_name = "E:\\abc.jpg"
 
 #
 # You can only write a Device-independent bitmap
 #  directly to a Windows device context; therefore
 #  we need (for ease) to use the Python Imaging
 #  Library to manipulate the image.
 #
 # Create a device context from a named printer
 #  and assess the printable size of the paper.
 #
 hDC = win32ui.CreateDC ()
 hDC.CreatePrinterDC (printer_name)
 printable_area = hDC.GetDeviceCaps (HORZRES), hDC.GetDeviceCaps (VERTRES)
 printer_size = hDC.GetDeviceCaps (PHYSICALWIDTH), hDC.GetDeviceCaps (PHYSICALHEIGHT)
 printer_margins = hDC.GetDeviceCaps (PHYSICALOFFSETX), hDC.GetDeviceCaps (PHYSICALOFFSETY)
 
 #
 # Open the image, rotate it if it's wider than
 #  it is high, and work out how much to multiply
 #  each pixel by to get it as big as possible on
 #  the page without distorting.
 #
 bmp = Image.open (file_name)
 if bmp.size[0] > bmp.size[1]:
   bmp = bmp.rotate (90)
 
 ratios = [1.0 * printable_area[0] / bmp.size[0], 1.0 * printable_area[1] / bmp.size[1]]
 scale = min (ratios)
 
 #
 # Start the print job, and draw the bitmap to
 #  the printer device at the scaled size.
 #
 hDC.StartDoc (file_name)
 hDC.StartPage ()
 
 dib = ImageWin.Dib (bmp)
 scaled_width, scaled_height = [int (scale * i) for i in bmp.size]
 x1 = int ((printer_size[0] - scaled_width) / 2)
 y1 = int ((printer_size[1] - scaled_height) / 2)
 x2 = x1 + scaled_width
 y2 = y1 + scaled_height
 dib.draw (hDC.GetHandleOutput (), (x1, y1, x2, y2))
 
 hDC.EndPage ()
 hDC.EndDoc ()
 hDC.DeleteDC ()

注：python调用win32接口打印照片