def getWinId self Get Window id by clicking using xwininfo tool wininf

    def getWinId(self):
        """
        Get Window id by clicking using xwininfo tool
        """
        wininfo = subprocess.Popen('xwininfo', shell=True, stdout=subprocess.PIPE).stdout
        for line in wininfo:
            if line.find('Window id: ') > -1:
                return line[21:30]
        return 0

    def getWinSnap(self):
        """
        Get snapshot of window
        """
        id = self.getWinId()
        snap = QtGui.QPixmap.grabWindow(id)
        print id