1、打印机操作（打印默认文本里面的内容）
from PyQt5 import QtGui,QtWidgets,QtPrintSupport
from PyQt5.QtWidgets import *
import sys
class Printsupport1(QMainWindow):
def __init__(self):
super(Printsupport1,self).__init__()
self.setGeometry(500,200,300,300)
self.button=QPushButton("打印QtextEdit控件中的内容",self)
self.button.setGeometry(20,60,260,200)
self.editor=QTextEdit("默认文本",self)
self.button.clicked.connect(self.print)
def print(self):
printer=QtPrintSupport.QPrinter() #打印机
painter=QtGui.QPainter()
#将绘制的目标重新定向到打印机
painter.begin(printer)
screen=self.editor.grab()
painter.drawPixmap(10,10,screen)
painter.end()
print("print")
if __name__=="__main__":
app=QApplication(sys.argv)
p=Printsupport1()
p.show()
sys.exit(app.exec_())
2、显示打印样式设置对话框
from PyQt5.QtPrintSupport import QPageSetupDialog,QPrintDialog,QPrinter
from PyQt5.QtWidgets import *
import sys
class Printdialog(QMainWindow):
def __init__(self):
super(Printdialog,self).__init__()
self.printer=QPrinter() #定义一个默认的打印机
self.initUI()
def initUI(self):
self.setGeometry(300,300,500,400)
self.setWindowTitle("打印对话框")
self.editor=QTextEdit(self)
self.editor.setGeometry(20,20,300,270)
self.openbutton=QPushButton("打开文件",self)
self.openbutton.move(350,20)
self.settingbutton=QPushButton("打印设置",self)
self.settingbutton.move(350,50)
self.printbutton=QPushButton("打印文档",self)
self.printbutton.move(350,80)
self.openbutton.clicked.connect(self.openfile)
self.settingbutton.clicked.connect(self.showsettingdailog)
self.printbutton.clicked.connect(self.showprintdialog)
#打开文件
def openfile(self):
fname=QFileDialog.getOpenFileName(self,"打开文本文件","./")
if fname[0]:
with open(fname[0],"r",encoding='utf-8',errors='ignore') as f:
self.editor.setText(f.read())
#显示打印设置对话框
def showsettingdailog(self):
printerdailog=QPageSetupDialog(self.printer,self)
printerdailog.exec()
#显示打印对话框
def showprintdialog(self):
print1=QPrintDialog(self.printer,self)
if QDialog.Accepted==print1.exec():
self.editor.print(self.printer)
if __name__=="__main__":
app=QApplication(sys.argv)
p=Printdialog()
p.show()
sys.exit(app.exec_())
