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：
1.
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
# 908204694@qq.com
#
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_())
2.
#------------------------- 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_())
3.
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)
