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def enableWindowShadow(hWnd, bool_enabled):
    import ctypes
    GCL_STYLE = (-26)
    CS_DROPSHADOW = 0x00020000
    hWnd = ctypes.c_long(self.winId())
    class_style = ctypes.windll.user32.GetClassLongA(hWnd, GCL_STYLE)
    if bool_enabled:
        class_style |= CS_DROPSHADOW
    else:
        class_style &= ~CS_DROPSHADOW
    ctypes.windll.user32.SetClassLongA(hWnd, GCL_STYLE, class_style)