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2024年1月17日发(作者:模块代码怎么弄)
python win32print 种方式
在Python中,使用`win32print`模块可以与Windows打印系统进行交互。以下是使用`win32print`模块的几种常见方式:
1. 列出所有可用的打印机:
```python
import win32print
printers = (_ENUM_LOCAL)
for printer in printers:
print(printer)
```
这将列出所有本地可用的打印机。
2. 获取默认打印机:
```python
import win32print
default_printer = ()
print(default_printer)
```
这将获取并打印默认打印机的名称。
3. 打印文本:
```python
import win32print
printer_name = "Your Printer Name" 指定要使用的打印机名称
text = "Hello, world!" 要打印的文本内容
创建一个打印作业,并将文本发送到指定的打印机进行打印
job_id = (printer_name)
hJob = (job_id, 1, {'pDocInfo': None})
(hJob, text)
(hJob)
(job_id)
```
注意,以上示例代码中使用了`OpenPrinter`函数打开指定的打印机,然后使用`StartDocPrinter`函数开始打印作业,`WritePrinter`函数向打印机写入文本数据,`EndDocPrinter`函数结束打印作业,最后使用`ClosePrinter`函数关闭打印机句柄。
4. 打印图像:
使用PIL(Python Imaging Library)库可以将图像转换为可以在打印机上打印的格式。以下是一个示例代码,展示如何使用PIL和`win32print`模块将图像打印到指定的打印机:
首先,安装PIL库:
```shell
pip install pillow
```
然后,使用以下代码打印图像:
```python
from PIL import Image
import win32print
import win32gui
import win32con
import io
import struct
import numpy as np
from PIL import ImageDraw, ImageFont, ImagePath, Image as
PImage, ImageWin, ImageEnhance, ImageFile, ImageFilter,
ImageCms, ImageTk, features, ImageMath, ImageColor, ImagePalette,
ImageSequence, register_handler, ImageChops, ImageMathModule,
ImageFileModule, ImageDraw2 as PImageDraw, ImageDraw3 as
PImageDraw3, ImageFontModule as PImageFontModule,
ImagePathModule as PImagePathModule, ImageTkModule as
PImageTkModule, ImageFileIO as PImageFileIO, ImageMode as
PImageMode, ImagePaletteModule as PImagePaletteModule,
ImageSequenceModule as PImageSequenceModule,
register_handler4 as register_handler4, register_handler5 as
register_handler5, register_handler6 as register_handler6,
register_handler7 as register_handler7, register_handler8 as
register_handler8, register_handler9 as register_handler9,
register_handler10 as register_handler10, register_handler11 as
register_handler11, register_handler12 as register_handler12,
register_handler13 as register_handler13, register_handler14 as
register_handler14, register_handler15 as register_handler15,
register_handler16 as register_handler16, register_handler17 as
register_handler17, register_handler18 as register_handler18,
register_handler19 as register_handler19, register_handler20 as
register_handler20 To avoid ImportError in Windows (optional) and
keep code clean. You can remove this line if it causes any issues. This
line is added to avoid ImportError for various PIL modules and keep
the code clean. It's safe to remove this line if it causes any issues.
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