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class GlobalEventFilter(QAbstractNativeEventFilter):
def __init__(self):
super(GlobalEventFilter, self).__init__()
def nativeEventFilter(self, event_type, sip_voidptr):
if event_type == "windows_generic_MSG" or event_type == "windows_dispatcher_MSG":
msg = MSG.from_address(sip_voidptr.__init__())
if msg.message in [WM_KEYDOWN, WM_SYSKEYDOWN]:
if VK_F4 == msg.wParam and win32api.GetKeyState(VK_MENU) & 0xF000:
return True, 1 # True 代表我处理了消息，不需要Qt处理
elif VK_ESCAPE == msg.wParam:
return True, 1 # 屏蔽esc键
return False, 1
class App(QApplication):
def __init__(self, *args):
super(App, self).__init__(*args)
self.global_event_filter = GlobalEventFilter()
self.intallNativeEventFilter(self.global_event_filter)
def exit_app(self):
self.removeNativeEventFilter(self.global_event_filter)
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