Statusbar

Main window

The QtGui.QMainWindow class provides a main application window. This enables to create a classic application skeleton with a statusbar, toolbars, and a menubar.

Statusbar

A statusbar is a widget that is used for displaying status information.

#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
ZetCode PyQt4 tutorial 

This program creates a statusbar.

author: Jan Bodnar
website: zetcode.com 
last edited: September 2011
"""

import sys
from PyQt4 import QtGui


class Example(QtGui.QMainWindow):
    
    def __init__(self):
        super(Example, self).__init__()
        
        self.initUI()
        
        
    def initUI(self):               
        
        self.statusBar().showMessage(‘Ready‘)
        
        self.setGeometry(300, 300, 250, 150)
        self.setWindowTitle(‘Statusbar‘)    
        self.show()


def main():
    
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())


if __name__ == ‘__main__‘:
    main()

The statusbar is created with the help of the QtGui.QMainWindow widget.

self.statusBar().showMessage(‘Ready‘)

To get the statusbar, we call the statusBar() method of the QtGui.QMainWindow class. The first call of the method creates a status bar. Subsequent calls return the statusbar object. The showMessage()displays a message on the statusbar.

Statusbar

原文：http://www.cnblogs.com/hushaojun/p/4435413.html