Qt Mouse Position Relative To Widget

For tutoring please call 856. Method Documentation QContextMenuEvent. Returns the previous position of the mouse cursor, relative to the widget that received the event. The functions pos(), x(), and y() give the cursor position relative to the widget that receives the mouse event. OK, I Understand. c Note that we aren't registering a painting or drawing callback, so the window will be created with nothing drawn in it. Navigating. When using this method, note that it only provides the window with the size and position when it is initialized. Containers and layout policies have been a staple of GTK’s design since the very beginning. Qwt offers a couple of predefined state machines for selecting:. PyQt API provides layout classes for more elegant management of positioning of widgets inside the container. Disable scroll bar linkage to the mouse wheel and enable zooming with the mouse wheel Qt C++ 02 Mouse Scrolling with Custom Graphics View Open Source Options. Over 90 percent of questions asked here gets answered. The widget can also construct its own model if none is given to the constructor. How to focus mouse on widget/hud? 05-23-2017, 11:30 AM. You can't create one of these because the constructor is not public. Subcontrols may be placed anywhere in the widget box using subcontrol-position and subcontrol-origin. One place for all extensions for Visual Studio, Azure DevOps Services, Azure DevOps Server and Visual Studio Code. pageX/Y) we often also get the mouse position relative to the clicked element (event. OK, I Understand. */ // Pin 13 has an LED connected on most Arduino boards. Holding down the left mouse button and the Shift key pans the view in a plane. Putting OpenGL aware canvas into QT UI. This should be always (10,10) value but under wxGTK it is not. Activate a rectangle on the zoom stack with an offset relative to the current position. rviz Author(s): Dave Hershberger, David Gossow, Josh Faust autogenerated on Wed Aug 28 2019 04:01:54. QCalendar widget is a useful date picker control. 08 04/07/2019 : upgrade replace Tab to Space by duke24 Macro cross_section update. With earlier versions of Qt, this technique was frequently used to eliminate flicker and to provide a snappier user interface. ' With ­x option the generated Python class should be executed standalone to be displayed. You see, aside from the absolute mouse position (event. Next, we check whether the point is within the correct range. To install Qt, go to the “Download Qt” page, select “Go open source”, download the Qt Online Installer for Windows from the Qt Project and select, for the desired Qt version, a component that matches your target system and compiler. The pos parameter is the position of the mouse on the widget. GitHub Gist: instantly share code, notes, and snippets. In particular I will discuss how to write a basic unit test for a widget class, how to simulate mouse and keyboard events and how to write data driven tests for GUIs. Topics: Overview. It's official! KDE 2. Context menu events are sent to widgets when a user performs an action associated with opening a context menu. In this tutorial I will introduce GUI unit testing with Qt Test, the Qt framework for C++ unit testing. Mouse events occur when a mouse cursor is moved into, out of, or within a widget, and if the widget has the Qt. What this means is that they can be made to work on the "virtual" data tree. The most basic widget is the QWidget. The parameters should read: when the mouse button is pressed, while the keyboard modifiers and key are down, activate action on handler. OK, I Understand. The pos is the current mouse cursor's position relative to the receiving widget, while oldPos is its previous such position. (New in Version 4. But actually you don't need to really know the current viewer. Mouse events occur when a mouse cursor is moved into, out of, or within a widget, and if the widget has the Qt::WA_Hover attribute. Compatibility The Mod Organizer works with almost any tool I've tried so far. pyqt5 video widget. the index is out of range) -1 is returned. This feature list applies to the current version of QCAD Professional. Wheel events are sent to the widget under the mouse cursor, but if that widget does not handle the event they are sent to the focus widget. Returns the global position of the mouse pointer at the time of the event. button return Point (self. Compatibility The Mod Organizer works with almost any tool I've tried so far. If you move the QT QLabel中的图片位置移动问题. If we want the. Could I get the information via pyside ? I tried to find out the widget class of graph. A MouseEvent listener must implement the MouseListener interface, which declares the following five abstract methods:. is based in Amsterdam, the Netherlands and is supported internationally by 198 offices in 70 countries. This means … Continue reading "How Do I Change the Size and Position of the Main Window in. Method Documentation QContextMenuEvent. This class is mainly used to create mouse cursors that are associated with particular widgets and to get and set the position of the mouse cursor. Since widgets can be nested, it is important to keep this in mind. eSignal at warp speed gives you up-to–the-second market data from 100s of global markets so that you can watch trends, set your strategy, and execute your best trades without missing a beat. grid_location(x, y). QGroupBox *groupBox = new QGroupBox("Some more important buttons"); QPushButton* impBut1 = new QPushButton("Important 1"); QPushButton* impBut2 = new QPushButton. button return Point (self. If you move the widget as a result of the mouse event, use the global position returned by PySide. Matplotlib and Qt 1/6. Widget Component. If user holds the left mouse button and stops mouse movements, all possible suggestions will be indicated periodically, one at a time. 2、QPoint QMouseEvent::globalPos(). Compile command: gcc -I /usr/include/ -lglut -o window window_glut. Menus and toolbars in PyQt5. Widgets used to build the GUI interface act as the source of such events. 5+ it integrates better with the native system and has more widgets to choose from. In QT, an object, such as a displayed signal, is defined as a widget. The UI class provides the API for easily placing HTML elements and widgets within the view. If you move the widget as a result of the mouse event, use the global position returned by globalPos() to avoid a shaking motion. This converts the absolute coordinates of the Health Bar widget to local space by getting the screen position where the mouse button registered a button down key press. The slider is the classic widget for controlling a bounded value. We use cookies for various purposes including analytics. (4) The Widget Panel This region features several shortcut buttons for doing speaker verification and other kinds of quality control. Widgets can be added on an absolute position using the move(x,y) method. 5 shows a mock-up of a news reader application, and Figure 9. pos_hint will make the values relative to the size/position of the parent. (see QGraphicsSceneMouseEvent::buttons in the Qt documentation) ignore [source] ¶. where the QLabel is a child of QFrame, which in turn is a child of QWidget. The RelativeLayout class behaves just like the regular FloatLayout except that its child widgets are positioned relative to the layout. the QMenu widget. image import assemble_imageitems from guiqwt. QPoint QMouseEvent::globalPos(). To give you as much control as possible, it tries to provide a simple, flexible API that gives you all the pointer event data you'll need to move elements around. (New in Version 4. Qt for beginners part 2 widgets Makes sure that it looks like it's native to the OS Parent-child relationship x,y coordinates in relative regions Parent defines coordinate space Custom widgets 5 (tab, SIGNAL(currentChanged(int)) … setCurrentWidget(widget) Displays page associated with widget setTabPosition(position) Defines where. Next I ran the same program under Windows 7 with Qt 4. Qt has a lot of themes available much like GTK does. The pos parameter specifies the mouse position relative to the receiving widget. In cases like these, the function you use depends on where the desired data is relative to the unwanted characters in the cell. You should see the print out of your mouse's location for all the movement and pressing you do. Qt 5, get the mouse position in a screen If you want to determine the local mouse coordinates with respect to a widget (this will be in device pixels and relative. WA_Hover attribute. A lot of tutorials offer nothing but short code. The relative positioning scheme (position: so if the mouse hovers over the button while it is enabled, the second rule takes precedence. SpinBox (gb. eSignal at warp speed gives you up-to–the-second market data from 100s of global markets so that you can watch trends, set your strategy, and execute your best trades without missing a beat. From: Subject: =?utf-8?B?QnVsZ2FyaXN0YW4sIEFLUCdsaSBBeml6IEJhYnXFn8OndSd5YSAnZ2lyacWfIHlhc2HEn8SxJyBrb3lkdSAtIEN1bWh1cml5ZXQgVMO8cmtpeWUgSGFiZXJsZXJp?= Date: Fri, 14. If we know both Qt and OpenGL, the essence of Qt OpenGL is two step learning process: Getting OpenGL module from Qt. PySide2 … Continue reading Getting Started with Qt for Python →. Custom events can be added to guizero widgets to call functions when the user takes the following actions: when clicked - when_clicked when the left mouse button is pressed - when_left_button_pressed when the left mouse button is released - when_left_button_released when the right mouse button is pressed - when_right_button_pressed when the right mouse button is released - when_right. Get the current location of the mouse cursor relative to the active window. Qt Designer is the Qt tool for designing and building graphical user interfaces. The world's leading conservation organization, WWF works in 100 countries and is supported by more than one million members in the United States and close to five million globally. Warning: This function may be slow. The QHoverEvent class contains parameters that describe a mouse event. DriveWidget implements a control which translates mouse Y values into linear velocities and mouse X values into angular velocities. To avoid having the widget destroyed (more like standard Qt behavior), consider making the widget a sub-widget. Mouse position You are encouraged to solve this task according to the task description, using any language you may know. The QListWidget class provides an item-based list widget. It lets the user move a slider handle along a horizontal or vertical groove and translates the handle's position into an integer value within the legal range. A Better 2D Scene Manipulation Widget for Qt The way Qt does it is keep track of the initial position of each item and the location of the last left mouse button press in screen coordinates. The pos parameter specifies the mouse position relative to the receiving widget. To associate a cursor with a widget, use QWidget. Drawing using QPainter is ideal for custom widgets and for drawing one or just a few items. Detailed Description. The position is relative to the widget's parent. we created our first programs in Qt4. Best regards ars. Returns the position of the mouse cursor as a PySide. The QHoverEvent class contains parameters that describe a mouse event. Learn how to keep in touch and stay productive with Microsoft Teams and Office 365, even when you’re working remotely >. Widgets that are designed to work for any of the GUI backends. A widget is clipped by its parent and by the widgets in front of it. News, email and search are just the beginning. a fixed rate (relative to the wall clock) The Throttle Block, or a hardware Sink block, will apply 'back pressure' to the upstream blocks (the rate of work of the upstream blocks will be limited by the throttling effect of this rate-controlling block) A hardware Source block will produce samples at a fixed rate (relative to the wall clock). Hello to everyone. Axes instance and pass that as the first arg. If anyone knows an easy way to get the geometry of an arbitrary widget, I'm still interested, because I can imagine some cases where I'd like to open a popup relative to a widget via key press, but this solution works perfectly for anything mouse-driven. Only certain backends natively support double-clicking (currently Qt and WX); on other backends, they are detected manually with a fixed time delay. The cursor's position in global coordinates is specified by globalPos. The widget position reported in mouseReleaseEvent() may be offset by some value in some cases, this happens when you have a widget hierarchy such as follows: QWidget-> QFrame-> QLabel. The positioning of the subcontrol may be further fine tuned using absolute or relative positioning. You see, aside from the absolute mouse position (event. The following are code examples for showing how to use PyQt5. Ive also tried PixelSearch, but it doesnt. coordinates if the QTouchEvent is handled by a QGraphicsItem::touchEvent() reimplementation, and identical to the screen position for widgets. tags tell Mixxx where to position a widget. This allows users of applications that are not designed for tablets to use a tablet like a mouse. Make the mouse-wheel to scroll the plugin list views, when not hovering a direct-access parameter slider. PyQt5 widget positioning example The example below puts widgets on the absolute positions using the move() method. This is done by dividing the x() and y() components of the mouse position by the zoom factor. Constructs a help event with the given type corresponding to the widget-relative position specified by pos and the global position specified by globalPos. This is the widget where the drag and drop operation originated. Qt's new user interface technology consists of the QML language, elements that provide basic building blocks of the language, the QtDeclarative (C++) module that provides a runtime for the QML language, and a scripting language based on JavaScript that allows developers to implement logic in their projects with no C++ coding required. Constructs a context menu event object with the accept parameter flag set to false. By voting up you can indicate which examples are most useful and appropriate. Further mouse events like Motion and Release events will be sent to the current widget, even if the mouse is moved outside the current widget. Active Item: Whatever is the hot item when the L-mouse button is clicked on becomes the active item, until the mouse is released. The QWidget::setEnabled() function can be used to enable or disable mouse and keyboard events for a widget. int QContextMenuEvent:: y const. QwtPlotZoomer selects rectangles from user inputs ( mouse or keyboard ) translates them into plot coordinates and adjusts the axes to them. pos(), which may not be appropriate. Legal Notice. This are only fixes made after the branch was created. After many trials, errors and researching I have finally decided to go with PyQT. By voting up you can indicate which examples are most useful and appropriate. Note that this ignores any margins that the Form may have defined. To invert this behaviour, set mouse wheel zoom factors smaller than one (but greater zero). If you are looking for information about Qt related issue — register and post your question. Watch a screencast made with the Demo Application to see what qAccordion is. With earlier versions of Qt, this technique was frequently used to eliminate flicker and to provide a snappier user interface. int QWheelEvent:: x const. The RecyclerView widget is a more advanced and flexible version of ListView. Modal dialog for confirming the user to close the window in Qt - README. move(x, y)¶ Move the widget or window to the given position. Drag off the Mouse Event pin and add the Get Screen Space Position node and connect the Return Value to the Absolute Coordinate pin. Get involved and help us write a better documentation. QT is clean and fast, fully object-oriented, easy to use, it’s very portable (QT4 is natively portable to Windows also, not sure about MacOS X), you can create derivative widgets with simplicity and the development is fast. A cursor is a small icon that indicates the position of the mouse pointer. How to change the location of a Qwidget (code only please with how the code work) Qt Properties are part of Qt Meta Object system (docs are very good, feel free to consult them): @ You can use Move function of your widget with two parameters i. Widget Components allow you to manifest 3D UI elements created through Unreal Motion Graphics in your game world. QwtPanner grabs the contents of a widget, that can be dragged in all directions. The QCursor class provides a mouse cursor with an arbitrary shape. However, also note that classes which inherit from QAbstractScrollArea 1 instead use the coordinates of their viewport(). I'd like the widget to be placed in a location inside of the parent widget so that when moving the parent widget, it stays in the relative position. Every widget will have a relative position on the grid. we can determine the position of the focus widget on the screen and. _buttonDownScreenPos [int (btn)]). QPointF, relative to the widget that received the event. 这个只是返回相对这个widget(重载了QMouseEvent的widget)的位置。 const Returns the position of the mouse cursor, relative to the widgetthat received the event. It provides a month-based view. In this tutorial, we'll show you how to start handling with Qt for Python's signals and slots. Active Item: Whatever is the hot item when the L-mouse button is clicked on becomes the active item, until the mouse is released. Mouse events occur when a mouse cursor is moved into, out of, or within a widget, and if the widget has the Qt::WA_Hover attribute. QPoint QMouseEvent::pos() 这个只是返回相对这个widget(重载了QMouseEvent的widget)的位置。 const Returns the position of the mouse cursor, relative to the widgetthat received the event. This is a valid Tkinter widget instance, not a name. I know about widgetAt(); method, but it's not very suitable for me, because of following. For Qt, the context (and widget) will be destroyed only if the widget is top-level. Returns the position of the mouse cursor as a PySide. If user holds the left mouse button and stops mouse movements, all possible suggestions will be indicated periodically, one at a time. This code listens for onMouseOver to display an InfoWindow when the mouse hovers over a graphic. Note that we must first resize the widget. Widgets can be added on an absolute position using the move(x,y) method. Is the user currently dragging the wheel whith the mouse? void setTracking (bool _b) bool tracking const Is tracking on? void setGear (double _g) double gear const How fast does angle() change when the wheel is turned? (see above) virtual QSizePolicy sizePolicy const reimplemented : virtual QSize sizeHint const reimplemented. 这个只是返回相对这个widget(重载了QMouseEvent的widget)的位置。 const Returns the position of the mouse cursor, relative to the widgetthat received the event. How to Make Frames (Main Windows) Set or get the size and position of the window. */ // Pin 13 has an LED connected on most Arduino boards. Returns the x position of the mouse cursor, relative to the widget that received the event. hover() method, when passed a single function, will execute that handler for both mouseenter and mouseleave events. The current value is displayed as text. The function pos() gives the current cursor position, while oldPos() gives the old mouse position. You do this by calling. CsoundQt offers a set of widgets to create a Graphical User Interface. QMouseEvent. Plugin instantiation is now constrained as much to prevent any audio channel output overriding. Here is a quote from WWF's website: For nearly 60 years, WWF has been protecting the future of nature. pageX/Y) we often also get the mouse position relative to the clicked element (event. 0 and Ubuntu 14. Discover the innovative world of Apple and shop everything iPhone, iPad, Apple Watch, Mac, and Apple TV, plus explore accessories, entertainment, and expert device support. In particular I will discuss how to write a basic unit test for a widget class, how to simulate mouse and keyboard events and how to write data driven tests for GUIs. If y or x is a negative value, npyscreen will try to position it relative to the bottom or right edge of the Form. The mouse cursor position and button state are given by the parameter event. QT gives every widget that is placed on a form an appropriate size and position by layout-manage mechanism. QPoint QMouseEvent:: pos const. position = e. QPoint QMouseEvent::pos() 这个只是返回相对这个widget(重载了QMouseEvent的widget)的位置。 const Returns the position of the mouse cursor, relative to the widgetthat received the event. QHoverEvent. QCAD Professional. Search the world's information, including webpages, images, videos and more. QMouseEvent. I see it's a common struggle for people to understand how to manage size and positions of the widgets in kivy. According to JavaScript analytics service, Libscore, jQuery UI is used on over 197,000 of the top one million websites, making it the second most popular JavaScript library. QWidget contains most properties that are used to describe a window, or a widget, like position and size, mouse cursor, tooltips, etc. winfo_containing(rootX, rootY, displayof=0) Returns the widget at the given position, or None if there is no such window, or it isn't owned by this application. This class is mainly used to create mouse cursors that are associated with particular widgets and to get and set the position of the mouse cursor. closeAllWindows(), etc. QMouseEvent::pos() reports the position of the mouse cursor, relative to this widget. we can determine the position of the focus widget on the screen and. """ if btn is None: btn = self. QApplication. The mutation, D1866Y, alters an evolutionarily conserved aspartate residue in the C-terminal cytoplasmic domain of the sodium channel α subunit. RecyclerView overview. __init__ (self, Reason reason, QPoint pos, QPoint globalPos, Qt. Detailed Description. The rotation distance is provided by delta(). Remark : in Qt, a widget can also be a. /** * @brief Tracks where the cursor is relative to the scene at the last mouse event for a mouse event. To use, draw and position a four node path. This allows the user to use jQuery's various toggle methods within the handler or to respond differently within the handler depending on the event. GitHub Gist: instantly share code, notes, and snippets. To set the position of the buttons (or of any other widget), you can use the method setGeometry. int QTextEdit::lines const Returns the number of lines in the text edit; this could be 0. closeAllWindows(), etc. Mouse events occur when a mouse cursor is moved into, out of, or within a widget, and if the widget has the Qt::WA_Hover attribute. Alternatively, they can click and release the menubutton: the choices will appear and stay until the user clicks one of them. state is the ButtonState at the time of the event. This is a valid Tkinter widget instance, not a name. In the next example will show various cursors that we can use in our programs. You can also use setGeometry function of your widget with four parameters. pytest-qt registers a new fixture named qtbot, which acts as bot in the sense that it can send keyboard and mouse events to any widgets being tested. See Section 53, "Focus: routing keyboard input". Added 3d_cursor support to interactive markers. You can now re-order your QDockWidget's tabs with the mouse. The window manager will draw the window for you. Qt has a number of standard cursor shapes, but you can also make custom cursor shapes based on a QBitmap, a mask and a hotspot. If the callback is connected to InteractionEvent, the scene will update whenever the mouse is moved on the slider. The QCursor class provides a mouse cursor with an arbitrary shape. When the widget is active, a horizontal "laser" line is drawn which indicates the height at the current mouse position. The reason parameter must be QContextMenuEvent. move(x, y)¶ Move the widget or window to the given position. Item-Based Rendering with Graphics View. Posted by: admin December 24, I can't simply use contentsRect, since it returns positions relative to the widget it is being called on. I hope you found this useful - thanks for reading!. If TestObj refers to an object of a non-DPI-aware application running with a DPI setting other than 100%, set the X and Y parameter values relative to the application (as if the application is running with the 100% DPI setting). 随着科技互联网的飞速发展和不断创新,亚博体育(yb5点io)目前有很多APP开发不断在市场上涌现,就目前而言,网上商城app开发引起很多人关注,最受大众关注的焦点是购物商城app开发价格,下面小编展开来进行分析。. The actions required to open context menus vary between platforms; for example, on Windows, pressing the menu button or clicking the right mouse button will cause this event to be sent. This is important on asynchronous window systems such as X11; whenever you move your widgets around in response to mouse events, PySide. If you move the widget as a result of the mouse event, use the global position returned by globalPos() to avoid a shaking motion. There are a lot of new concepts you need to understand to get anything to work. From: Subject: =?utf-8?B?QnVsZ2FyaXN0YW4sIEFLUCdsaSBBeml6IEJhYnXFn8OndSd5YSAnZ2lyacWfIHlhc2HEn8SxJyBrb3lkdSAtIEN1bWh1cml5ZXQgVMO8cmtpeWUgSGFiZXJsZXJp?= Date: Fri, 14. This page contains the revisions to be merged from trunk to the Lazarus 1. This should be always (10,10) value but under wxGTK it is not. Splitters are fully supported by Qt Designer, and are used in much the same way as vertical and horizontal box layouts: We select two or more widgets, and click Form^Lay Out Horizontally in Splitter or. Hello all, Ive read up on QWidgets and I am so lost. If anyone can tell me how to do that that'd be great! I've read stuff about getting the mouse position from the form, but I'm not using. Set User Focus Target is Widget Blueprint Library. You see, aside from the absolute mouse position (event. QMouseEvent. Setting up qAccordion. x_root, y_root. You can vote up the examples you like or vote down the ones you don't like. Search the world's information, including webpages, images, videos and more. This process of drawing on a surface with QPainter is in fact the basis by which all widgets in Qt are drawn. If CsoundQt is built with RtMidi, a widget can directly be connected with any MIDI controller. width: The width of the widget in characters (not pixels!). I need to get a pointer to a widget at current mouse cursor position. Widget Components allow you to manifest 3D UI elements created through Unreal Motion Graphics in your game world. Keys: Sends a keystroke to an object. Licensees holding valid Qt Commercial licenses may use this document in. I’ve got a signal being fired to my parent widget’s controller and can determine when the drag is starting and ending correctly. The QHoverEvent class contains parameters that describe a mouse event. The button that caused the event is given as a value from the Qt::MouseButton enum. GitHub Gist: instantly share code, notes, and snippets. Discover more every day. If you wanted your widget to lay out its children according to a specific policy, you had to implement GtkContainer for handling the addition, removal, and iteration of the child widgets, and then you had to implement the size negotiation virtual functions from GtkWidget to measure, position, and size. I have a GraphicsLayoutWidget embedded in a QT application. RecyclerView overview. setCursor(). 5 shows a mock-up of a news reader application, and Figure 9. QwtPlotZoomer provides stacked zooming for a plot widget. Since widgets can be nested, it is important to keep this in mind. Coupled with position and ymargin, this parameter moves the widget vertically by this offset from the position computed above. Camera control (rotation, zoom in and out). If there is no such paragraph or no such character at the index position (e. GSoC 2019 is coming to an end and for this reason it is unfortunately my last blog post on freifunk. Alors, pour chaque widget correspondant à un champ obligatoire, nous aurions simplement à créer au vol une propriété mandatoryField puis à la définir à true. process_model which can be used to change Chromium’s process model. Areas, that are not part of content are not painted. globalPos is the mouse position in Qt and their respective logos are trademarks. QCAD Professional. If you are looking for information about Qt related issue — register and post your question. Setting up qAccordion. Default Qt Application Window and Widgets. NE (top right), tk. When the slider is nor readOnly() its value can be modified by keyboard, mouse and wheel inputs. QApplication. globalPos() is initialized to QCursor. But this tutorial is more focused on Qt and Creator IDE rather than the details of OpenGL implementation. The nodes "GetMousePositionScaledbyDPI" and "GetMousePositiononViewport" return the mouse location in the relative space of the widget and so the top right corner of the screen equals X = 1920 and NOT 1280, which is the top right corner based on my current play window size. The way how the points are collected depends on type of state machine that is connected to the picker. 这个只是返回相对这个widget(重载了QMouseEvent的widget)的位置。 const Returns the position of the mouse cursor, relative to the widgetthat received the event. QtCore import QRectF from guidata. The most basic widget is the QWidget. It will be a complete port of the original PySide, which only supported Qt 4. It also provides information about the layer. When to use the custom widget approach. When user starts a tool window drag and moves mouse pointer to a position, there can be an ambiguity in new position of the tool window. relative to the widget or QGraphicsItem that received the event. The first step is to convert the mouse position from widget coordinates to image coordinates. This will open the part into a new tab in FreeCAD. Since MPlayer is being run in slave mode, it reads commands from the standard input. 6 We made some improvements to QDockWidget for Qt 5. This class provides a simple interface for adding, moving and removing components from a view's user interface (UI). The QHoverEvent class contains parameters that describe a mouse event. Your job, then, is to arrange these different widgets in a widget container into larger panels. In this WPF Tutorial we will show that: --How to get the position of Mouse on object boundary. If the event type is MouseMove, the appropriate button for this event is Qt::NoButton. x_root, y_root. Normal widgets and modal widgets cannot be accessed before the popup widget is closed. int QTextEdit::lines const Returns the number of lines in the text edit; this could be 0.