Python调用打印机参考例子

参考资料：

http://blog.csdn.net/jdh99/article/details/42585987

http://www.oschina.net/question/1438043_235020

http://blog.163.com/ctcg326%40126/blog/static/758129102012451034427/

http://codego.net/447659/

部分样例：

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from PyQt5.QtWidgets import (QApplication, QWidget, QTableWidget,QPushButton, 
                             QVBoxLayout, 
                            QTableWidgetItem)
from PyQt5.QtGui import  QPixmap, QPainter, QImage, QTextDocument
from PyQt5.QtPrintSupport import  QPrinter, QPrintDialog, QPrintPreviewDialog
from PyQt5.QtCore import QRect, QPoint, QSize ,  Qt
 
 
# 有预览框<br># 908204694@qq.com<br>#
 
 
def on_htmlButton_clicked():
    printer =QPrinter(QPrinter.HighResolution)
    #/* 打印预览 */
    preview =QPrintPreviewDialog(printer,widget )   
    preview.paintRequested.connect(printHtml)
     
    #
    #   显示 预览框
    #
    #preview.exec()
    preview.exec_()
 
def printHtml(printer):
 
    html = """<html>
    <head></head>
    <body>
        <h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
        <h1>55555</h1><b>bold</b>
    </body>
    </html>"""
 
    textDocument = QTextDocument()
    textDocument.setHtml(html)
    #textDocument.print(printer)
    textDocument.print_(printer)
    
 
 
def on_picButton_clicked():
 
    printer =QPrinter(QPrinter.HighResolution)
#/* 打印预览 */
    preview =QPrintPreviewDialog(printer,widget )   
 
    """
     * QPrintPreviewDialog类提供了一个打印预览对话框，里面功能比较全，
     * paintRequested(QPrinter *printer)是系统提供的，
     * 当preview.exec()执行时该信号被触发，
     * plotPic(QPrinter *printer)是用户自定义的槽函数，图像的绘制就在这个函数里。
    """
    preview.paintRequested.connect(plotPic)
 
    preview.exec()#/* 等待预览界面退出 */
 
 
 
def  plotPic(printer):
 
    
    
    painter =QPainter(printer);
    image = QPixmap()
 
    image=widget.grab(QRect( QPoint( 0, 0 ), 
                                            QSize( widget.size().width(), 
                                                        widget.size().height()
                                                    ) 
                                        )
                                )# /* 绘制窗口至画布 */
   #QRect 
    rect = painter.viewport();
   #QSize 
    size = image.size();
    size.scale(rect.size(), Qt.KeepAspectRatio)#     //此处保证图片显示完整
    painter.setViewport(rect.x(), rect.y(),size.width(), size.height());
    painter.setWindow(image.rect());
 
    painter.drawPixmap(0,0,image); #/* 数据显示至预览界面 */
 
 
 
import sys
 
app = QApplication(sys.argv)
tablewidget = QTableWidget()
## 设置列数
tablewidget.setColumnCount(4)
tablewidget.horizontalHeader().setDefaultSectionSize(150)
 
## QStringList在PyQt5
header= ["name", "last modify time","type",  "size"]
 
tablewidget.setHorizontalHeaderLabels(header)
tablewidget.insertRow(0)
tablewidget.insertRow(0)
 
pItem1 =  QTableWidgetItem("aa" )
pItem2 =  QTableWidgetItem("bb" )
pItem3 =  QTableWidgetItem("cc" )
pItem4 =  QTableWidgetItem("dd" )
tablewidget.setItem( 0, 0, pItem1 )
tablewidget.setItem( 0, 1, pItem2 )
tablewidget.setItem( 0, 2, pItem3 )
tablewidget.setItem( 0, 3, pItem4 )
 
tablewidget.setMinimumSize(800, 600)
 
 
 
button = QPushButton('打印界面')
button.clicked.connect(on_picButton_clicked)
 
button_txt = QPushButton('打印文字')
button_txt.clicked.connect(on_htmlButton_clicked)
 
widget = QWidget()
layout = QVBoxLayout(widget)
layout.addWidget(button)
layout.addWidget(button_txt)
layout.addWidget(tablewidget)
widget.show()
 
sys.exit(app.exec_())

#------------------------- printer.py ----------------------
# 908204694@qq.com
 
 
# 直接打印,不预览
 
# -*- coding: utf-8 -*-
from PyQt5.QtCore import *
from PyQt5.QtGui import *
 
from PyQt5.QtPrintSupport import QPrinterInfo, QPrinter
 
class Printer:
 
#打印机列表
@staticmethod
def printerList():
printer = []
printerInfo = QPrinterInfo()
print('availablePrinterNames', printerInfo.availablePrinterNames() )
print('defaultPrinterName', printerInfo.defaultPrinterName())
 
for item in printerInfo.availablePrinters():
printer.append(item.printerName())
return printer
 
#打印任务
@staticmethod
def printing(printer, context):
 
p = QPrinter()
 
doc = QTextDocument()
 
htmlStr = context 
print('aaaa', htmlStr)
doc.setHtml(htmlStr)
doc.setPageSize(QSizeF(p.logicalDpiX()*(80/25.4),
p.logicalDpiY()*(297/25.4)))
p.setOutputFormat(QPrinter.NativeFormat)
doc.print_(p)
 
@staticmethod
def printing_22(printer, context):
printerInfo = QPrinterInfo()
p = QPrinter()
for item in printerInfo.availablePrinters():
if printer == item.printerName():
p = QPrinter(item)
doc = QTextDocument()
doc.setHtml(u'%s' % context)
doc.setPageSize(QSizeF(p.logicalDpiX()*(80/25.4),
p.logicalDpiY()*(297/25.4)))
p.setOutputFormat(QPrinter.NativeFormat)
doc.print_(p)
 
 
 
 
 
if __name__ == '__main__':
import sys
from PyQt5.QtWidgets import QApplication
app = QApplication(sys.argv) 
########################################## 
html = '<html><head></head><body><h1>55555</h1><b>bold</b></body></html>'
p = "defaultPrinter" #打印机名称
#Printer.printing(p, html)
#Printer.printerList()
Printer.printing_22(p, html)
 
##################################################### 
sys.exit(app.exec_())

from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import QApplication
from PyQt5.QtPrintSupport import QPrinter
 
 
#
# 将要打印的东西生成pdf
#
# 908204694@qq.com
 
a=QApplication([])
document = QTextDocument()
html = """
<head>
<title>Report</title>
<style>
</style>
</head>
<body>
<table width="100%">
<tr>
<td><img src="{}" width="30"></td>
<td><h1>REPORT汉字试试哈</h1></td>
</tr>
</table>
<hr>
<p align=right><img src="{}" width="300"></p>
<p align=right>Sample</p>
</body>
""".format('./aa.png', './bb.png')
 
document.setHtml(html)
printer = QPrinter()
printer.setResolution(96)
printer.setPageSize(QPrinter.Letter)
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setOutputFileName("test.pdf")
 
# 设置纸张的边距
printer.setPageMargins(12, 16, 12, 20, QPrinter.Millimeter)
document.setPageSize(QSizeF(printer.pageRect().size()))
print(document.pageSize(), printer.resolution(), printer.pageRect())
document.print_(printer)