问QDockWidget隐藏标题栏

EN

QDockWidget.setTitleBarWidget (self, QWidget widget)

The widget argument has it's ownership transferred to Qt.

Sets an arbitrary widget as the dock widget's title bar. If widget is 0, any custom title bar widget previously set on the dock widget is removed, but not deleted, and the default title bar will be used instead.

dockWidget->setTitleBarWidget(new QWidget());

QDockWidget.setTitleBarWidget (self, QWidget widget)

self.dockWdg1.setTitleBarWidget(self, QtGui.QWidget(0))# If I don't add QtGui in front of QWidget it don't know what is QWidget 

TypeError: QWidget(QWidget parent=None, Qt.WindowFlags flags=0): argument 1 has unexpected type 'int'

import sys, random
from PyQt4 import QtCore, QtGui
from PyQt4.QtGui import QPalette, QBrush, QPixmap





class MainWin(QtGui.QMainWindow):

     def __init__(self):
        super(MainWin, self).__init__()

        self.initUI()


     def initUI(self):


        #central widget
        self.theboard = Board(self)
        self.setCentralWidget(self.theboard)


          #dock1 Left Dock
        self.dockWdg1 = LeftDock(self)
        #Use SizeQWidget()  to define the initial size of QDockWidget
        self.content1 = SizeQWidget()
        self.dockWdg1.setWidget(self.content1)
        self.dockWdg1.setFeatures(self.dockWdg1.NoDockWidgetFeatures)
        self.addDockWidget(QtCore.Qt.LeftDockWidgetArea, self.dockWdg1)
        self.dockWdg1.setTitleBarWidget(self, QtGui.QWidget(0))# If I don't add QtGui in front of QWidget it don't know what is QWidget

        self.resize(360, 760)
        self.setWindowTitle('Test')
        self.show()



class LeftDock(QtGui.QDockWidget):

    def __init__(self, parent):
        super(LeftDock, self).__init__(parent)
        self.initLeftDock()


    def initLeftDock(self):

        self.setGeometry(300, 300, 200, 120)
        #self.setWindowTitle('LeftDock')




class Board(QtGui.QFrame):


    def __init__(self, parent):
        super(Board, self).__init__(parent)

        self.initBoard()

    def initBoard(self):

        print("ddd")


#Dummy QWidget used by QDockWidget for defining initial size.
class SizeQWidget(QtGui.QWidget):
       def sizeHint(self):
        return QtCore.QSize(100, 75)



def main():

    app = QtGui.QApplication([])
    mw = MainWin()
    sys.exit(app.exec_())


if __name__ == '__main__':
    main()