Python win32con 模块，GWL_EXSTYLE 实例源码

def MakeTransparent(self, amount):
        if os.name == 'nt':  # could substitute: sys.platform == 'win32'
            hwnd = self.GetHandle()
            _winlib = win32api.LoadLibrary("user32")
            pSetLayeredWindowAttributes = win32api.GetProcAddress(
                _winlib, "SetLayeredWindowAttributes")
            if pSetLayeredWindowAttributes is None:
                return
            exstyle = win32api.GetWindowLong(hwnd, win32con.GWL_EXSTYLE)
            if 0 == (exstyle & 0x80000):
                exstyle |= win32con.WS_EX_LAYERED | win32con.WS_EX_TOOLWINDOW | win32con.WS_EX_TRANSPARENT
                win32api.SetWindowLong(hwnd, win32con.GWL_EXSTYLE, exstyle)
            win32gui.SetLayeredWindowAttributes(hwnd, 0, amount, 2)
        else:
            print('####  OS Platform must be MS Windows')
            self.Destroy()

def TestGradientFill():
    wc = win32gui.WNDCLASS()
    wc.lpszClassName = 'test_win32gui_2'
    wc.style =  win32con.CS_GLOBALCLASS|win32con.CS_VREDRAW | win32con.CS_HREDRAW
    wc.hbrBackground = win32con.COLOR_WINDOW+1
    wc.lpfnWndProc=wndproc_2
    class_atom=win32gui.RegisterClass(wc)       
    hwnd = win32gui.CreateWindowEx(0, class_atom,'Kaleidoscope',
        win32con.WS_CAPTION|win32con.WS_VISIBLE|win32con.WS_THICKFRAME|win32con.WS_SYSMENU,
        100,100,900,900, 0, 0, 0, None)
    s=win32gui.GetWindowLong(hwnd,win32con.GWL_EXSTYLE)
    win32gui.SetWindowLong(hwnd, win32con.GWL_EXSTYLE, s|win32con.WS_EX_LAYERED)
    win32gui.SetLayeredWindowAttributes(hwnd, 0, 175, win32con.LWA_ALPHA)
    for x in xrange(30):
        win32gui.InvalidateRect(hwnd,None,True)
        win32gui.PumpWaitingMessages()
        time.sleep(0.3)
    win32gui.DestroyWindow(hwnd)
    win32gui.UnregisterClass(class_atom,None)

def TestGradientFill():
    wc = win32gui.WNDCLASS()
    wc.lpszClassName = 'test_win32gui_2'
    wc.style =  win32con.CS_GLOBALCLASS|win32con.CS_VREDRAW | win32con.CS_HREDRAW
    wc.hbrBackground = win32con.COLOR_WINDOW+1
    wc.lpfnWndProc=wndproc_2
    class_atom=win32gui.RegisterClass(wc)       
    hwnd = win32gui.CreateWindowEx(0, class_atom,'Kaleidoscope',
        win32con.WS_CAPTION|win32con.WS_VISIBLE|win32con.WS_THICKFRAME|win32con.WS_SYSMENU,
        100,100,900,900, 0, 0, 0, None)
    s=win32gui.GetWindowLong(hwnd,win32con.GWL_EXSTYLE)
    win32gui.SetWindowLong(hwnd, win32con.GWL_EXSTYLE, s|win32con.WS_EX_LAYERED)
    win32gui.SetLayeredWindowAttributes(hwnd, 0, 175, win32con.LWA_ALPHA)
    for x in range(30):
        win32gui.InvalidateRect(hwnd,None,True)
        win32gui.PumpWaitingMessages()
        time.sleep(0.3)
    win32gui.DestroyWindow(hwnd)
    win32gui.UnregisterClass(class_atom,None)

def remove_taskbar_button(self):
        """Hide window from taskbar and ALT+TAB dialog."""
        win32gui.ShowWindow(self.hwnd, win32con.SW_HIDE)
        win32api.SetWindowLong(
            self.hwnd, win32con.GWL_EXSTYLE,
            win32api.GetWindowLong(self.hwnd, win32con.GWL_EXSTYLE)
            | win32con.WS_EX_NOACTIVATE
            | win32con.WS_EX_TOOLWINDOW)
        win32gui.ShowWindow(self.hwnd, win32con.SW_SHOW)

def test_manipulate_ui(self):
        logging.debug('Starting UI test')

        win_handler = wh.WinHandler('Kalkulator')

        hwnd = win_handler.get_hwnd()
        style_base = win32gui.GetWindowLong(hwnd, win32con.GWL_EXSTYLE)

        win_handler.hide_extra_ui()
        style_removed = win32gui.GetWindowLong(hwnd, win32con.GWL_EXSTYLE)
        assert style_base != style_removed

        win_handler.hide_extra_ui(remove=False)
        style_added = win32gui.GetWindowLong(hwnd, win32con.GWL_EXSTYLE)
        assert style_removed != style_added

def hide_extra_ui(self, hwnd=None, remove=True):
        """
        :param hwnd: Hwnd to remove all styling from. If not supplied, then the default hwnd is used
        :param remove: If true: Removes all styling. If false: Adds back the removed styles
        :return: NoneType
        """

        logging.debug('Trying to manipulate UI')

        if hwnd is None:
            hwnd = self.get_hwnd()

        style = win32gui.GetWindowLong(hwnd, win32con.GWL_EXSTYLE)

        if remove:
            logging.debug('Removing UI')
            style = style | win32con.WS_POPUP
            style = style & ~win32con.WS_OVERLAPPEDWINDOW
        else:
            logging.debug('Adding UI')
            style = style & ~win32con.WS_POPUP
            style = style | win32con.WS_OVERLAPPEDWINDOW

        win32gui.ShowWindow(hwnd, win32con.SW_HIDE)
        win32gui.SetWindowLong(hwnd, win32con.GWL_STYLE, style)
        win32gui.ShowWindow(hwnd, win32con.SW_SHOW)