如何在PyQt中激活应用程序窗口

Question

I tried to set window flags:

self.setWindowFlags(QtCore.Qt.FramelessWindowHint | QtCore.Qt.WindowStaysOnTopHint)

it works perfectly but event keyPressEvent doesn't firing. After I activate window (ALT+TAB) event starts and work.

By the way, I tried to activate window with call this event: self.activateWindow() but it doesn't work for me.

How to fix it?

full-code:

def show(self):
    geometry = QtGui.QApplication.desktop().screenGeometry()
    self.setFixedSize(geometry.width(), geometry.height())
    self.setWindowFlags(self.windowFlags() | QtCore.Qt.WindowStaysOnTopHint | QtCore.Qt.FramelessWindowHint)
    self.setWindowOpacity(.3)
    self.setStyleSheet("background: 'black'")

    self.raise_()
    self.show()

def keyPressEvent(self, e):
    key = e.key()
    if key == QtCore.Qt.Key_Escape:
        self.close()

Thanks.

Answer 1

您应该尝试的第一件事是：

self.setFocus(QtCore.Qt.PopupFocusReason)