（33）记录描述窗体组件属性的枚举量 enum Qt :: WidgetAttribute，简记为 WA

本文链接：https://blog.youkuaiyun.com/zhangzhangkeji/article/details/149316952

（1）

    //这个枚举类型用于指定各种小部件属性。属性通过`OWidget:setAttribute()、进行设置和清除，
    //并通过Widget::testAttribute()、进行查询，尽管有些属性有专门的便捷函数，下文将予以说明。
    enum WidgetAttribute {
        WA_Disabled = 0,
        WA_UnderMouse = 1,
        WA_MouseTracking = 2,
        // Formerly, 3 was WA_ContentsPropagated.
        WA_OpaquePaintEvent = 4,
        WA_StaticContents = 5,
        WA_LaidOut = 7,
        WA_PaintOnScreen = 8,
        WA_NoSystemBackground = 9,
        WA_UpdatesDisabled = 10,
        WA_Mapped = 11,
        // Formerly, 12 was WA_MacNoClickThrough.
        WA_InputMethodEnabled = 14,
        WA_WState_Visible = 15,
        WA_WState_Hidden = 16,

        WA_ForceDisabled = 32,
        WA_KeyCompression = 33,
        WA_PendingMoveEvent          = 34,
        WA_PendingResizeEvent        = 35,
        WA_SetPalette                = 36,
        WA_SetFont                   = 37,
        WA_SetCursor                 = 38,
        WA_NoChildEventsFromChildren = 39,
        WA_WindowModified = 41,
        WA_Resized = 42,
        WA_Moved = 43,
        WA_PendingUpdate = 44,
        WA_InvalidSize = 45,
        // Formerly 46 was WA_MacBrushedMetal and WA_MacMetalStyle.
        WA_CustomWhatsThis = 47,
        WA_LayoutOnEntireRect = 48,
        WA_OutsideWSRange = 49,
        WA_GrabbedShortcut = 50,
        WA_TransparentForMouseEvents = 51,
        WA_PaintUnclipped = 52,
        WA_SetWindowIcon = 53,
        WA_NoMouseReplay = 54,
        WA_DeleteOnClose = 55,
        WA_RightToLeft = 56,
        WA_SetLayoutDirection = 57,
        WA_NoChildEventsForParent = 58,
        WA_ForceUpdatesDisabled = 59,

        WA_WState_Created = 60,
        WA_WState_CompressKeys = 61,
        WA_WState_InPaintEvent = 62,
        WA_WState_Reparented = 63,
        WA_WState_ConfigPending = 64,
        WA_WState_Polished = 66,
        // Formerly, 67 was WA_WState_DND.
        WA_WState_OwnSizePolicy = 68,
        WA_WState_ExplicitShowHide = 69,

        WA_ShowModal   = 70, // ## deprecated since since 4.5.1 but still in use :-(
        WA_MouseNoMask = 71,
        WA_NoMousePropagation = 73, // for now, might go away.
        WA_Hover       = 74, //强制Qt在鼠标进入或离开该小部件时生成绘制事件。
                            //这一特性通常在实现自定义样式时使用;有关详情，请参阅“样式”示例。
        WA_InputMethodTransparent = 75, // Don't reset IM when user clicks on this (for virtual keyboards on embedded)
        WA_QuitOnClose = 76,

        WA_KeyboardFocusChange = 77,

        WA_AcceptDrops = 78,
        WA_DropSiteRegistered = 79, // internal

        WA_WindowPropagation = 80,

        WA_NoX11EventCompression = 81,
        WA_TintedBackground = 82,
        WA_X11OpenGLOverlay = 83,
        WA_AlwaysShowToolTips = 84,
        WA_MacOpaqueSizeGrip = 85,
        WA_SetStyle = 86,

        WA_SetLocale = 87,
        WA_MacShowFocusRect = 88,

        WA_MacNormalSize = 89,  // Mac only
        WA_MacSmallSize = 90,   // Mac only
        WA_MacMiniSize = 91,    // Mac only

        WA_LayoutUsesWidgetRect = 92,
        WA_StyledBackground = 93, // internal
        // Formerly, 94 was WA_MSWindowsUseDirect3D.
        WA_CanHostQMdiSubWindowTitleBar = 95, // Internal

        WA_MacAlwaysShowToolWindow = 96, // Mac only

        WA_StyleSheet = 97, // internal

        WA_ShowWithoutActivating = 98,

        WA_X11BypassTransientForHint = 99,

        WA_NativeWindow = 100,
        WA_DontCreateNativeAncestors = 101,

        // Formerly WA_MacVariableSize = 102,    // Mac only

        WA_DontShowOnScreen = 103,

        // window types from http://standards.freedesktop.org/wm-spec/
        WA_X11NetWmWindowTypeDesktop = 104,
        WA_X11NetWmWindowTypeDock = 105,
        WA_X11NetWmWindowTypeToolBar = 106,
        WA_X11NetWmWindowTypeMenu = 107,
        WA_X11NetWmWindowTypeUtility = 108,
        WA_X11NetWmWindowTypeSplash = 109,
        WA_X11NetWmWindowTypeDialog = 110,
        WA_X11NetWmWindowTypeDropDownMenu = 111,
        WA_X11NetWmWindowTypePopupMenu = 112,
        WA_X11NetWmWindowTypeToolTip = 113,
        WA_X11NetWmWindowTypeNotification = 114,
        WA_X11NetWmWindowTypeCombo = 115,
        WA_X11NetWmWindowTypeDND = 116,
        // Formerly, 117 was WA_MacFrameworkScaled.
        WA_SetWindowModality = 118,
        WA_WState_WindowOpacitySet = 119, // internal
        WA_TranslucentBackground = 120,

        WA_AcceptTouchEvents = 121,
        WA_WState_AcceptedTouchBeginEvent = 122,
        WA_TouchPadAcceptSingleTouchEvents = 123,

        WA_X11DoNotAcceptFocus = 126,
        // Formerly, 127 was WA_MacNoShadow

        WA_AlwaysStackOnTop = 128,

        WA_TabletTracking = 129,

        WA_ContentsMarginsRespectsSafeArea = 130,

        WA_StyleSheetTarget = 131,

        // Add new attributes before this line
        WA_AttributeCount
    };