How to see all posted events for an object
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Hello All,
is there a way to see all posted events of an object in QT..? or is it private to QT.?
I could see them when the object processes those posted events but i'm wondering if there's a way to see all posted events that are yet to be processed.
Also, Please give any references to understand how posted events work & how these are different than sending events directly.
Thanks in advance,
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Hi
You can install a eventfilter and see what is sent to each control.
http://www.informit.com/articles/article.aspx?p=1405544&seqNum=2For info, please see
http://doc.qt.io/qt-5/eventsandfilters.htmlAlso for more fun with EventFilters you can use my ID to string function
so it can directly list what is is :)const char* DesignArea::EventDesc(int EType) { if ( EType == QEvent::Timer /*== 1*/ ) return "timer event"; if ( EType == QEvent::MouseButtonPress /*== 2*/ ) return " mouse button pressed"; if ( EType == QEvent::MouseButtonRelease /*== 3*/ ) return " mouse button released"; if ( EType == QEvent::MouseButtonDblClick /*== 4*/ ) return " mouse button double click"; if ( EType == QEvent::MouseMove /*== 5*/ ) return " mouse move"; if ( EType == QEvent::KeyPress /*== 6*/ ) return " key pressed"; if ( EType == QEvent::KeyRelease /*== 7*/ ) return " key released"; if ( EType == QEvent::FocusIn /*== 8*/ ) return " keyboard focus received"; if ( EType == QEvent::FocusOut /*== 9*/ ) return " keyboard focus lost"; if ( EType == QEvent::FocusAboutToChange /*== 23*/ ) return " keyboard focus is about to be lost"; if ( EType == QEvent::Enter /*== 10*/ ) return " mouse enters widget"; if ( EType == QEvent::Leave /*== 11*/ ) return " mouse leaves widget"; if ( EType == QEvent::Paint /*== 12*/ ) return " paint widget"; if ( EType == QEvent::Move /*== 13*/ ) return " move widget"; if ( EType == QEvent::Resize /*== 14*/ ) return " resize widget"; if ( EType == QEvent::Create /*== 15*/ ) return " after widget creation"; if ( EType == QEvent::Destroy /*== 16*/ ) return " during widget destruction"; if ( EType == QEvent::Show /*== 17*/ ) return " widget is shown"; if ( EType == QEvent::Hide /*== 18*/ ) return " widget is hidden"; if ( EType == QEvent::Close /*== 19*/ ) return " request to close widget"; if ( EType == QEvent::Quit /*== 20*/ ) return " request to quit application"; if ( EType == QEvent::ParentChange /*== 21*/ ) return " widget has been reparented"; if ( EType == QEvent::ParentAboutToChange /*== 131*/ ) return " sent just before the parent change is done"; if ( EType == QEvent::ThreadChange /*== 22*/ ) return " object has changed threads"; if ( EType == QEvent:: WindowActivate /*== 24*/ ) return " window was activated"; if ( EType == QEvent::WindowDeactivate /*== 25*/ ) return " window was deactivated"; if ( EType == QEvent::ShowToParent /*== 26*/ ) return " widget is shown to parent"; if ( EType == QEvent::HideToParent /*== 27*/ ) return " widget is hidden to parent"; if ( EType == QEvent::Wheel /*== 31*/ ) return " wheel event"; if ( EType == QEvent::WindowTitleChange /*== 33*/ ) return " window title changed"; if ( EType == QEvent::WindowIconChange /*== 34*/ ) return " icon changed"; if ( EType == QEvent::ApplicationWindowIconChange /*== 35*/ ) return " application icon changed"; if ( EType == QEvent::ApplicationFontChange /*== 36*/ ) return " application font changed"; if ( EType == QEvent::ApplicationLayoutDirectionChange /*== 37*/ ) return " application layout direction changed"; if ( EType == QEvent::ApplicationPaletteChange /*== 38*/ ) return " application palette changed"; if ( EType == QEvent::PaletteChange /*== 39*/ ) return " widget palette changed"; if ( EType == QEvent::Clipboard /*== 40*/ ) return " internal clipboard event"; if ( EType == QEvent::Speech /*== 42*/ ) return " reserved for speech input"; if ( EType == QEvent::MetaCall /* == 43*/) return " meta call event"; if ( EType == QEvent::SockAct /*== 50*/ ) return " socket activation"; if ( EType == QEvent::WinEventAct /*== 132*/ ) return " win event activation"; if ( EType == QEvent::DeferredDelete /*== 52*/ ) return " deferred delete event"; if ( EType == QEvent::DragEnter /*== 60*/ ) return " drag moves into widget"; if ( EType == QEvent::DragMove /*== 61*/ ) return " drag moves in widget"; if ( EType == QEvent::DragLeave /*== 62*/ ) return " drag leaves or is cancelled"; if ( EType == QEvent::Drop /*== 63*/ ) return " actual drop"; if ( EType == QEvent::DragResponse /*== 64*/ ) return " drag accepted / rejected"; if ( EType == QEvent::ChildAdded /*== 68*/ ) return " new child widget"; if ( EType == QEvent::ChildPolished /*== 69*/ ) return " polished child widget"; if ( EType == QEvent::ChildRemoved /*== 71*/ ) return " deleted child widget"; if ( EType == QEvent::ShowWindowRequest /*== 73*/ ) return " widget's window should be mapped"; if ( EType == QEvent::PolishRequest /*== 74*/ ) return " widget should be polished"; if ( EType == QEvent::Polish /* 75*/) return " widget is polished"; if ( EType == QEvent::LayoutRequest /*== 76*/ ) return " widget should be relayouted"; if ( EType == QEvent::UpdateRequest /*== 77*/ ) return " widget should be repainted"; if ( EType == QEvent::UpdateLater /*== 78*/ ) return " request update() later"; if ( EType == QEvent::EmbeddingControl /*== 79*/ ) return " ActiveX embedding"; if ( EType == QEvent::ActivateControl /*== 80*/ ) return " ActiveX activation"; if ( EType == QEvent::DeactivateControl /*== 81*/ ) return " ActiveX deactivation"; if ( EType == QEvent::ContextMenu /*== 82*/ ) return " context popup menu"; if ( EType == QEvent::InputMethod /*== 83*/ ) return " input method"; if ( EType == QEvent::TabletMove /*== 87*/ ) return " Wacom tablet event"; if ( EType == QEvent::LocaleChange /*== 88*/ ) return " the system locale changed"; if ( EType == QEvent::LanguageChange /*== 89*/ ) return " the application language changed"; if ( EType == QEvent::LayoutDirectionChange /*== 90*/ ) return " the layout direction changed"; if ( EType == QEvent::Style /*== 91*/ ) return " internal style event"; if ( EType == QEvent::TabletPress /*== 92*/ ) return " tablet press"; if ( EType == QEvent::TabletRelease /*== 93*/ ) return " tablet release"; if ( EType == QEvent::OkRequest /*== 94*/ ) return " CE (Ok) button pressed"; if ( EType == QEvent::HelpRequest /*== 95*/ ) return " CE (?) button pressed"; if ( EType == QEvent::IconDrag /*== 96*/ ) return " proxy icon dragged"; if ( EType == QEvent::FontChange /*== 97*/ ) return " font has changed"; if ( EType == QEvent::EnabledChange /*== 98*/ ) return " enabled state has changed"; if ( EType == QEvent::ActivationChange /*== 99*/ ) return " window activation has changed"; if ( EType == QEvent::StyleChange /*== 100*/ ) return " style has changed"; if ( EType == QEvent::IconTextChange /*== 101*/ ) return " icon text has changed"; if ( EType == QEvent::ModifiedChange /*== 102*/ ) return " modified state has changed"; if ( EType == QEvent::MouseTrackingChange /*== 109*/ ) return " mouse tracking state has changed"; if ( EType == QEvent::WindowBlocked /*== 103*/ ) return " window is about to be blocked modally"; if ( EType == QEvent::WindowUnblocked /*== 104*/ ) return " windows modal blocking has ended"; if ( EType == QEvent::WindowStateChange /*== 105*/ ) return "WindowStateChange"; if ( EType == QEvent::ReadOnlyChange /*== 106*/ ) return " readonly state has changed"; if ( EType == QEvent::ToolTip /*== 110*/ ) return "Tooltip"; if ( EType == QEvent::WhatsThis /*== 111*/ ) return "----------------------"; if ( EType == QEvent::StatusTip /*== 112*/ ) return "----------------------"; if ( EType == QEvent::ActionChanged /*== 113*/ ) return "----------------------"; if ( EType == QEvent::ActionAdded /*== 114*/ ) return "----------------------"; if ( EType == QEvent::ActionRemoved /*== 115*/ ) return "----------------------"; if ( EType == QEvent::FileOpen /*== 116*/ ) return " file open request"; if ( EType == QEvent::Shortcut /*== 117*/ ) return " shortcut triggered"; if ( EType == QEvent::ShortcutOverride /*== 51*/ ) return " shortcut override request"; if ( EType == QEvent::WhatsThisClicked /*== 118*/ ) return "----------------------"; if ( EType == QEvent::ToolBarChange /*== 120*/ ) return " toolbar visibility toggled"; if ( EType == QEvent::ApplicationActivate /*== 121*/ ) return " deprecated. Use ApplicationStateChange instead."; if ( EType == QEvent::ApplicationActivated ) return " deprecated"; if ( EType == QEvent::ApplicationDeactivate /*== 122*/ ) return " deprecated. Use ApplicationStateChange instead."; if ( EType == QEvent::ApplicationDeactivated) return " deprecated"; if ( EType == QEvent::QueryWhatsThis /*== 123*/ ) return " query what's this widget help"; if ( EType == QEvent::EnterWhatsThisMode /*== 124*/ ) return "----------------------"; if ( EType == QEvent::LeaveWhatsThisMode /*== 125*/ ) return "----------------------"; if ( EType == QEvent::ZOrderChange /*== 126*/ ) return " child widget has had its z - order changed"; if ( EType == QEvent::HoverEnter /*== 127*/ ) return " mouse cursor enters a hover widget"; if ( EType == QEvent::HoverLeave /*== 128*/ ) return " mouse cursor leaves a hover widget"; if ( EType == QEvent::HoverMove /*== 129*/ ) return " mouse cursor move inside a hover widget"; //if ( EType == QEvent::EnterEditFocus /*== 150*/ ) return " enter edit mode in keypad navigation"; //if ( EType == QEvent::LeaveEditFocus /*== 151*/ ) return " enter edit mode in keypad navigation"; if ( EType == QEvent::AcceptDropsChange /*== 152*/ ) return "----------------------"; if ( EType == QEvent::ZeroTimerEvent /*== 154*/ ) return " Used for Windows Zero timer events"; if ( EType == QEvent::GraphicsSceneMouseMove /*== 155*/ ) return " GraphicsView"; if ( EType == QEvent::GraphicsSceneMousePress /*== 156*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneMouseRelease /*== 157*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneMouseDoubleClick /*== 158*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneContextMenu /*== 159*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneHoverEnter /*== 160*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneHoverMove /*== 161*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneHoverLeave /*== 162*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneHelp /*== 163*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneDragEnter /*== 164*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneDragMove /*== 165*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneDragLeave /*== 166*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneDrop /*== 167*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneWheel /*== 168*/ ) return "----------------------"; if ( EType == QEvent::KeyboardLayoutChange /*== 169*/ ) return " keyboard layout changed"; if ( EType == QEvent::DynamicPropertyChange /*== 170*/ ) return " A dynamic property was changed through setProperty / property"; if ( EType == QEvent::TabletEnterProximity /*== 171*/ ) return "----------------------"; if ( EType == QEvent::TabletLeaveProximity /*== 172*/ ) return "----------------------"; if ( EType == QEvent::NonClientAreaMouseMove /*== 173*/ ) return "----------------------"; if ( EType == QEvent::NonClientAreaMouseButtonPress /*== 174*/ ) return "----------------------"; if ( EType == QEvent::NonClientAreaMouseButtonRelease /*== 175*/ ) return "----------------------"; if ( EType == QEvent::NonClientAreaMouseButtonDblClick /*== 176*/ ) return "----------------------"; if ( EType == QEvent::MacSizeChange /*== 177*/ ) return " when the Qt::WA_Mac {Normal)Small)Mini} Size changes"; if ( EType == QEvent::ContentsRectChange /*== 178*/ ) return " sent by QWidget::setContentsMargins (internal)"; if ( EType == QEvent::MacGLWindowChange /*== 179*/ ) return " Internal! the window of the GLWidget has changed"; if ( EType == QEvent::FutureCallOut /*== 180*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneResize /*== 181*/ ) return "----------------------"; if ( EType == QEvent::GraphicsSceneMove /*== 182*/ ) return "----------------------"; if ( EType == QEvent::CursorChange /*== 183*/ ) return "----------------------"; if ( EType == QEvent::ToolTipChange /*== 184*/ ) return "----------------------"; if ( EType == QEvent::NetworkReplyUpdated /*== 185*/ ) return " Internal for QNetworkReply"; if ( EType == QEvent::GrabMouse /*== 186*/ ) return "----------------------"; if ( EType == QEvent::UngrabMouse /*== 187*/ ) return "----------------------"; if ( EType == QEvent::GrabKeyboard /*== 188*/ ) return "----------------------"; if ( EType == QEvent::UngrabKeyboard /*== 189*/ ) return "----------------------"; if ( EType == QEvent::MacGLClearDrawable /*== 191*/ ) return " Internal Cocoa) the window has changed) so we must clear"; if ( EType == QEvent::StateMachineSignal /*== 192*/ ) return "----------------------"; if ( EType == QEvent::StateMachineWrapped /*== 193*/ ) return "----------------------"; if ( EType == QEvent::TouchBegin /*== 194*/ ) return "----------------------"; if ( EType == QEvent::TouchUpdate /*== 195*/ ) return "----------------------"; if ( EType == QEvent::TouchEnd /*== 196*/ ) return "----------------------"; if ( EType == QEvent::NativeGesture /*== 197*/ ) return " QtGui native gesture"; if ( EType == QEvent::RequestSoftwareInputPanel /*== 199*/ ) return "----------------------"; if ( EType == QEvent::CloseSoftwareInputPanel /*== 200*/ ) return "----------------------"; if ( EType == QEvent::WinIdChange /*== 203*/ ) return "----------------------"; if ( EType == QEvent::Gesture /*== 198*/ ) return "----------------------"; if ( EType == QEvent::GestureOverride /*== 202*/ ) return "----------------------"; if ( EType == QEvent::ScrollPrepare /*== 204*/ ) return "----------------------"; if ( EType == QEvent::Scroll /*== 205*/ ) return "----------------------"; if ( EType == QEvent::Expose /*== 206*/ ) return "----------------------"; if ( EType == QEvent::InputMethodQuery /*== 207*/ ) return "----------------------"; if ( EType == QEvent::OrientationChange /*== 208*/ ) return " Screen orientation has changed"; if ( EType == QEvent::TouchCancel /*== 209*/ ) return "----------------------"; if ( EType == QEvent::ThemeChange /*== 210*/ ) return "----------------------"; if ( EType == QEvent::SockClose /*== 211*/ ) return " socket closed"; if ( EType == QEvent::PlatformPanel /*== 212*/ ) return "----------------------"; if ( EType == QEvent::StyleAnimationUpdate /*== 213*/ ) return " style animation target should be updated"; if ( EType == QEvent::ApplicationStateChange /*== 214*/ ) return "----------------------"; return "?"; } -
Hi,
You might also be interested by KDAB's GammaRay to take a look at the internals of your application.
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Hi,
You might also be interested by KDAB's GammaRay to take a look at the internals of your application.
