QWidget Class

Property Documentation

acceptDrops : bool

This property holds whether drop events are enabled for this widget

Setting this property to true announces to the system that this widget may be able to accept drop events.

If the widget is the desktop (windowType() == Qt::Desktop), this may fail if another application is using the desktop; you can call acceptDrops() to test if this occurs.

By default, this property is false.

Access functions:

See also Drag and Drop.

accessibleDescription : QString

This property holds the widget's description as seen by assistive technologies

The accessible description of a widget should convey what a widget does. While the accessibleName should be a short and concise string (e.g. Save), the description should give more context, such as Saves the current document.

This property has to be localized.

By default, this property contains an empty string and Qt falls back to using the tool tip to provide this information.

Access functions:

See also QWidget::accessibleName and QAccessibleInterface::text().

accessibleName : QString

This property holds the widget's name as seen by assistive technologies

This is the primary name by which assistive technology such as screen readers announce this widget. For most widgets setting this property is not required. For example for QPushButton the button's text will be used.

It is important to set this property when the widget does not provide any text. For example a button that only contains an icon needs to set this property to work with screen readers. The name should be short and equivalent to the visual information conveyed by the widget.

This property has to be localized.

By default, this property contains an empty string.

Access functions:

See also QWidget::accessibleDescription and QAccessibleInterface::text().

autoFillBackground : bool

This property holds whether the widget background is filled automatically

If enabled, this property will cause Qt to fill the background of the widget before invoking the paint event. The color used is defined by the QPalette::Window color role from the widget's palette.

In addition, Windows are always filled with QPalette::Window, unless the WA_OpaquePaintEvent or WA_NoSystemBackground attributes are set.

This property cannot be turned off (i.e., set to false) if a widget's parent has a static gradient for its background.

By default, this property is false.

This property was introduced in Qt 4.1.

Access functions:

See also Qt::WA_OpaquePaintEvent, Qt::WA_NoSystemBackground, and Transparency and Double Buffering.

baseSize : QSize

This property holds the base size of the widget

The base size is used to calculate a proper widget size if the widget defines sizeIncrement().

By default, for a newly-created widget, this property contains a size with zero width and height.

Access functions:

See also setSizeIncrement().

childrenRect : const QRect

This property holds the bounding rectangle of the widget's children

Hidden children are excluded.

By default, for a widget with no children, this property contains a rectangle with zero width and height located at the origin.

Access functions:

See also childrenRegion() and geometry().

childrenRegion : const QRegion

This property holds the combined region occupied by the widget's children

Hidden children are excluded.

By default, for a widget with no children, this property contains an empty region.

Access functions:

See also childrenRect(), geometry(), and mask().

contextMenuPolicy : Qt::ContextMenuPolicy

how the widget shows a context menu

The default value of this property is Qt::DefaultContextMenu, which means the contextMenuEvent() handler is called. Other values are Qt::NoContextMenu, Qt::PreventContextMenu, Qt::ActionsContextMenu, and Qt::CustomContextMenu. With Qt::CustomContextMenu, the signal customContextMenuRequested() is emitted.

Access functions:

See also contextMenuEvent(), customContextMenuRequested(), and actions().

cursor : QCursor

This property holds the cursor shape for this widget

The mouse cursor will assume this shape when it's over this widget. See the list of predefined cursor objects for a range of useful shapes.

An editor widget might use an I-beam cursor:

 setCursor(Qt::IBeamCursor);

If no cursor has been set, or after a call to unsetCursor(), the parent's cursor is used.

By default, this property contains a cursor with the Qt::ArrowCursor shape.

Some underlying window implementations will reset the cursor if it leaves a widget even if the mouse is grabbed. If you want to have a cursor set for all widgets, even when outside the window, consider QGuiApplication::setOverrideCursor().

Access functions:

See also QGuiApplication::setOverrideCursor().

enabled : bool

This property holds whether the widget is enabled

In general an enabled widget handles keyboard and mouse events; a disabled widget does not. An exception is made with QAbstractButton.

Some widgets display themselves differently when they are disabled. For example a button might draw its label grayed out. If your widget needs to know when it becomes enabled or disabled, you can use the changeEvent() with type QEvent::EnabledChange.

Disabling a widget implicitly disables all its children. Enabling respectively enables all child widgets unless they have been explicitly disabled. It it not possible to explicitly enable a child widget which is not a window while its parent widget remains disabled.

By default, this property is true.

Access functions:

See also isEnabledTo(), QKeyEvent, QMouseEvent, and changeEvent().

focus : const bool

This property holds whether this widget (or its focus proxy) has the keyboard input focus

By default, this property is false.

Access functions:

See also setFocus(), clearFocus(), setFocusPolicy(), and QApplication::focusWidget().

focusPolicy : Qt::FocusPolicy

This property holds the way the widget accepts keyboard focus

The policy is Qt::TabFocus if the widget accepts keyboard focus by tabbing, Qt::ClickFocus if the widget accepts focus by clicking, Qt::StrongFocus if it accepts both, and Qt::NoFocus (the default) if it does not accept focus at all.

You must enable keyboard focus for a widget if it processes keyboard events. This is normally done from the widget's constructor. For instance, the QLineEdit constructor calls setFocusPolicy(Qt::StrongFocus).

If the widget has a focus proxy, then the focus policy will be propagated to it.

Access functions:

See also focusInEvent(), focusOutEvent(), keyPressEvent(), keyReleaseEvent(), and enabled.

font : QFont

This property holds the font currently set for the widget

This property describes the widget's requested font. The font is used by the widget's style when rendering standard components, and is available as a means to ensure that custom widgets can maintain consistency with the native platform's look and feel. It's common that different platforms, or different styles, define different fonts for an application.

When you assign a new font to a widget, the properties from this font are combined with the widget's default font to form the widget's final font. You can call fontInfo() to get a copy of the widget's final font. The final font is also used to initialize QPainter's font.

The default depends on the system environment. QApplication maintains a system/theme font which serves as a default for all widgets. There may also be special font defaults for certain types of widgets. You can also define default fonts for widgets yourself by passing a custom font and the name of a widget to QApplication::setFont(). Finally, the font is matched against Qt's font database to find the best match.

QWidget propagates explicit font properties from parent to child. If you change a specific property on a font and assign that font to a widget, that property will propagate to all the widget's children, overriding any system defaults for that property. Note that fonts by default don't propagate to windows (see isWindow()) unless the Qt::WA_WindowPropagation attribute is enabled.

QWidget's font propagation is similar to its palette propagation.

The current style, which is used to render the content of all standard Qt widgets, is free to choose to use the widget font, or in some cases, to ignore it (partially, or completely). In particular, certain styles like GTK style, Mac style, and Windows Vista style, apply special modifications to the widget font to match the platform's native look and feel. Because of this, assigning properties to a widget's font is not guaranteed to change the appearance of the widget. Instead, you may choose to apply a styleSheet.

Access functions:

See also fontInfo() and fontMetrics().

frameGeometry : const QRect

geometry of the widget relative to its parent including any window frame

See the Window Geometry documentation for an overview of geometry issues with windows.

By default, this property contains a value that depends on the user's platform and screen geometry.

Access functions:

See also geometry(), x(), y(), and pos().

frameSize : const QSize

This property holds the size of the widget including any window frame

By default, this property contains a value that depends on the user's platform and screen geometry.

Access functions:

fullScreen : const bool

This property holds whether the widget is shown in full screen mode

A widget in full screen mode occupies the whole screen area and does not display window decorations, such as a title bar.

By default, this property is false.

Access functions:

See also windowState(), minimized, and maximized.

geometry : QRect

This property holds the geometry of the widget relative to its parent and excluding the window frame

When changing the geometry, the widget, if visible, receives a move event (moveEvent()) and/or a resize event (resizeEvent()) immediately. If the widget is not currently visible, it is guaranteed to receive appropriate events before it is shown.

The size component is adjusted if it lies outside the range defined by minimumSize() and maximumSize().

See the Window Geometry documentation for an overview of geometry issues with windows.

By default, this property contains a value that depends on the user's platform and screen geometry.

Access functions:

See also frameGeometry(), rect(), move(), resize(), moveEvent(), resizeEvent(), minimumSize(), and maximumSize().

height : const int

This property holds the height of the widget excluding any window frame

See the Window Geometry documentation for an overview of geometry issues with windows.

By default, this property contains a value that depends on the user's platform and screen geometry.

Access functions:

See also geometry, width, and size.

inputMethodHints : Qt::InputMethodHints

What input method specific hints the widget has.

This is only relevant for input widgets. It is used by the input method to retrieve hints as to how the input method should operate. For example, if the Qt::ImhFormattedNumbersOnly flag is set, the input method may change its visual components to reflect that only numbers can be entered.

The default value is Qt::ImhNone.

This property was introduced in Qt 4.6.

Access functions:

See also inputMethodQuery().

isActiveWindow : const bool

This property holds whether this widget's window is the active window

The active window is the window that contains the widget that has keyboard focus (The window may still have focus if it has no widgets or none of its widgets accepts keyboard focus).

When popup windows are visible, this property is true for both the active window and for the popup.

By default, this property is false.

Access functions:

See also activateWindow() and QApplication::activeWindow().

layoutDirection : Qt::LayoutDirection

This property holds the layout direction for this widget.

By default, this property is set to Qt::LeftToRight.

When the layout direction is set on a widget, it will propagate to the widget's children, but not to a child that is a window and not to a child for which setLayoutDirection() has been explicitly called. Also, child widgets added after setLayoutDirection() has been called for the parent do not inherit the parent's layout direction.

Access functions:

See also QApplication::layoutDirection.

locale : QLocale

This property holds the widget's locale

As long as no special locale has been set, this is either the parent's locale or (if this widget is a top level widget), the default locale.

If the widget displays dates or numbers, these should be formatted using the widget's locale.

This property was introduced in Qt 4.3.

Access functions:

See also QLocale and QLocale::setDefault().

maximized : const bool

This property holds whether this widget is maximized

This property is only relevant for windows.

By default, this property is false.

Access functions:

See also windowState(), showMaximized(), visible, show(), hide(), showNormal(), and minimized.

maximumHeight : int

This property holds the widget's maximum height in pixels

This property corresponds to the height held by the maximumSize property.

By default, this property contains a value of 16777215.

Access functions:

See also maximumSize and maximumWidth.

maximumSize : QSize

This property holds the widget's maximum size in pixels

The widget cannot be resized to a larger size than the maximum widget size.

By default, this property contains a size in which both width and height have values of 16777215.

Access functions:

See also maximumWidth, maximumHeight, minimumSize, and sizeIncrement.

maximumWidth : int

This property holds the widget's maximum width in pixels

This property corresponds to the width held by the maximumSize property.

By default, this property contains a value of 16777215.

Access functions:

See also maximumSize and maximumHeight.

minimized : const bool

This property holds whether this widget is minimized (iconified)

This property is only relevant for windows.

By default, this property is false.

Access functions:

See also showMinimized(), visible, show(), hide(), showNormal(), and maximized.

minimumHeight : int

This property holds the widget's minimum height in pixels

This property corresponds to the height held by the minimumSize property.

By default, this property has a value of 0.

Access functions:

See also minimumSize and minimumWidth.

minimumSize : QSize

This property holds the widget's minimum size

The widget cannot be resized to a smaller size than the minimum widget size. The widget's size is forced to the minimum size if the current size is smaller.

The minimum size set by this function will override the minimum size defined by QLayout. In order to unset the minimum size, use a value of QSize(0, 0).

By default, this property contains a size with zero width and height.

Access functions:

See also minimumWidth, minimumHeight, maximumSize, and sizeIncrement.

minimumSizeHint : const QSize

This property holds the recommended minimum size for the widget

If the value of this property is an invalid size, no minimum size is recommended.

The default implementation of minimumSizeHint() returns an invalid size if there is no layout for this widget, and returns the layout's minimum size otherwise. Most built-in widgets reimplement minimumSizeHint().

QLayout will never resize a widget to a size smaller than the minimum size hint unless minimumSize() is set or the size policy is set to QSizePolicy::Ignore. If minimumSize() is set, the minimum size hint will be ignored.

Access functions:

See also QSize::isValid(), resize(), setMinimumSize(), and sizePolicy().

minimumWidth : int

This property holds the widget's minimum width in pixels

This property corresponds to the width held by the minimumSize property.

By default, this property has a value of 0.

Access functions:

See also minimumSize and minimumHeight.

modal : const bool

This property holds whether the widget is a modal widget

This property only makes sense for windows. A modal widget prevents widgets in all other windows from getting any input.

By default, this property is false.

Access functions:

See also isWindow(), windowModality, and QDialog.

mouseTracking : bool

This property holds whether mouse tracking is enabled for the widget

If mouse tracking is disabled (the default), the widget only receives mouse move events when at least one mouse button is pressed while the mouse is being moved.

If mouse tracking is enabled, the widget receives mouse move events even if no buttons are pressed.

Access functions:

See also mouseMoveEvent().

normalGeometry : const QRect

This property holds the geometry of the widget as it will appear when shown as a normal (not maximized or full screen) top-level widget

For child widgets this property always holds an empty rectangle.

By default, this property contains an empty rectangle.

Access functions:

See also QWidget::windowState() and QWidget::geometry.

palette : QPalette

This property holds the widget's palette

This property describes the widget's palette. The palette is used by the widget's style when rendering standard components, and is available as a means to ensure that custom widgets can maintain consistency with the native platform's look and feel. It's common that different platforms, or different styles, have different palettes.

When you assign a new palette to a widget, the color roles from this palette are combined with the widget's default palette to form the widget's final palette. The palette entry for the widget's background role is used to fill the widget's background (see QWidget::autoFillBackground), and the foreground role initializes QPainter's pen.

The default depends on the system environment. QApplication maintains a system/theme palette which serves as a default for all widgets. There may also be special palette defaults for certain types of widgets (e.g., on Windows Vista, all classes that derive from QMenuBar have a special default palette). You can also define default palettes for widgets yourself by passing a custom palette and the name of a widget to QApplication::setPalette(). Finally, the style always has the option of polishing the palette as it's assigned (see QStyle::polish()).

QWidget propagates explicit palette roles from parent to child. If you assign a brush or color to a specific role on a palette and assign that palette to a widget, that role will propagate to all the widget's children, overriding any system defaults for that role. Note that palettes by default don't propagate to windows (see isWindow()) unless the Qt::WA_WindowPropagation attribute is enabled.

QWidget's palette propagation is similar to its font propagation.

The current style, which is used to render the content of all standard Qt widgets, is free to choose colors and brushes from the widget palette, or in some cases, to ignore the palette (partially, or completely). In particular, certain styles like GTK style, Mac style, and Windows Vista style, depend on third party APIs to render the content of widgets, and these styles typically do not follow the palette. Because of this, assigning roles to a widget's palette is not guaranteed to change the appearance of the widget. Instead, you may choose to apply a styleSheet.

Access functions:

See also QGuiApplication::palette(), QWidget::font(), and Qt Style Sheets.

pos : QPoint

This property holds the position of the widget within its parent widget

If the widget is a window, the position is that of the widget on the desktop, including its frame.

When changing the position, the widget, if visible, receives a move event (moveEvent()) immediately. If the widget is not currently visible, it is guaranteed to receive an event before it is shown.

By default, this property contains a position that refers to the origin.

See the Window Geometry documentation for an overview of geometry issues with windows.

Access functions:

See also frameGeometry, size, x(), and y().

rect : const QRect

This property holds the internal geometry of the widget excluding any window frame

The rect property equals QRect(0, 0, width(), height()).

See the Window Geometry documentation for an overview of geometry issues with windows.

By default, this property contains a value that depends on the user's platform and screen geometry.

Access functions:

See also size.

size : QSize

This property holds the size of the widget excluding any window frame

If the widget is visible when it is being resized, it receives a resize event (resizeEvent()) immediately. If the widget is not currently visible, it is guaranteed to receive an event before it is shown.

The size is adjusted if it lies outside the range defined by minimumSize() and maximumSize().

By default, this property contains a value that depends on the user's platform and screen geometry.

Access functions:

See also pos, geometry, minimumSize, maximumSize, resizeEvent(), and adjustSize().

sizeHint : const QSize

This property holds the recommended size for the widget

If the value of this property is an invalid size, no size is recommended.

The default implementation of sizeHint() returns an invalid size if there is no layout for this widget, and returns the layout's preferred size otherwise.

Access functions:

See also QSize::isValid(), minimumSizeHint(), sizePolicy(), setMinimumSize(), and updateGeometry().

sizeIncrement : QSize

This property holds the size increment of the widget

When the user resizes the window, the size will move in steps of sizeIncrement().width() pixels horizontally and sizeIncrement.height() pixels vertically, with baseSize() as the basis. Preferred widget sizes are for non-negative integers i and j:

 width = baseSize().width() + i * sizeIncrement().width();
 height = baseSize().height() + j * sizeIncrement().height();

Note that while you can set the size increment for all widgets, it only affects windows.

By default, this property contains a size with zero width and height.

Access functions:

See also size, minimumSize, and maximumSize.

sizePolicy : QSizePolicy

This property holds the default layout behavior of the widget

If there is a QLayout that manages this widget's children, the size policy specified by that layout is used. If there is no such QLayout, the result of this function is used.

The default policy is Preferred/Preferred, which means that the widget can be freely resized, but prefers to be the size sizeHint() returns. Button-like widgets set the size policy to specify that they may stretch horizontally, but are fixed vertically. The same applies to lineedit controls (such as QLineEdit, QSpinBox or an editable QComboBox) and other horizontally orientated widgets (such as QProgressBar). QToolButton's are normally square, so they allow growth in both directions. Widgets that support different directions (such as QSlider, QScrollBar or QHeader) specify stretching in the respective direction only. Widgets that can provide scroll bars (usually subclasses of QScrollArea) tend to specify that they can use additional space, and that they can make do with less than sizeHint().

Access functions:

See also sizeHint(), QLayout, QSizePolicy, and updateGeometry().

statusTip : QString

This property holds the widget's status tip

By default, this property contains an empty string.

Access functions:

See also toolTip and whatsThis.

styleSheet : QString

This property holds the widget's style sheet

The style sheet contains a textual description of customizations to the widget's style, as described in the Qt Style Sheets document.

Since Qt 4.5, Qt style sheets fully supports macOS.

This property was introduced in Qt 4.2.

Access functions:

See also setStyle(), QApplication::styleSheet, and Qt Style Sheets.

tabletTracking : bool

This property holds whether tablet tracking is enabled for the widget

If tablet tracking is disabled (the default), the widget only receives tablet move events when the stylus is in contact with the tablet, or at least one stylus button is pressed, while the stylus is being moved.

If tablet tracking is enabled, the widget receives tablet move events even while hovering in proximity. This is useful for monitoring position as well as the auxiliary properties such as rotation and tilt, and providing feedback in the UI.

This property was introduced in Qt 5.9.

Access functions:

See also tabletEvent().

toolTip : QString

This property holds the widget's tooltip

Note that by default tooltips are only shown for widgets that are children of the active window. You can change this behavior by setting the attribute Qt::WA_AlwaysShowToolTips on the window, not on the widget with the tooltip.

If you want to control a tooltip's behavior, you can intercept the event() function and catch the QEvent::ToolTip event (e.g., if you want to customize the area for which the tooltip should be shown).

By default, this property contains an empty string.

Access functions:

See also QToolTip, statusTip, and whatsThis.

toolTipDuration : int

This property holds the widget's tooltip duration

Specifies how long time the tooltip will be displayed, in milliseconds. If the value is -1 (default) the duration is calculated depending on the length of the tooltip.

This property was introduced in Qt 5.2.

Access functions:

See also toolTip.

updatesEnabled : bool

This property holds whether updates are enabled

An updates enabled widget receives paint events and has a system background; a disabled widget does not. This also implies that calling update() and repaint() has no effect if updates are disabled.

By default, this property is true.

setUpdatesEnabled() is normally used to disable updates for a short period of time, for instance to avoid screen flicker during large changes. In Qt, widgets normally do not generate screen flicker, but on X11 the server might erase regions on the screen when widgets get hidden before they can be replaced by other widgets. Disabling updates solves this.

Example:

 setUpdatesEnabled(false);
 bigVisualChanges();
 setUpdatesEnabled(true);

Disabling a widget implicitly disables all its children. Enabling a widget enables all child widgets except top-level widgets or those that have been explicitly disabled. Re-enabling updates implicitly calls update() on the widget.

Access functions:

See also paintEvent().

visible : bool

This property holds whether the widget is visible

Calling setVisible(true) or show() sets the widget to visible status if all its parent widgets up to the window are visible. If an ancestor is not visible, the widget won't become visible until all its ancestors are shown. If its size or position has changed, Qt guarantees that a widget gets move and resize events just before it is shown. If the widget has not been resized yet, Qt will adjust the widget's size to a useful default using adjustSize().

Calling setVisible(false) or hide() hides a widget explicitly. An explicitly hidden widget will never become visible, even if all its ancestors become visible, unless you show it.

A widget receives show and hide events when its visibility status changes. Between a hide and a show event, there is no need to waste CPU cycles preparing or displaying information to the user. A video application, for example, might simply stop generating new frames.

A widget that happens to be obscured by other windows on the screen is considered to be visible. The same applies to iconified windows and windows that exist on another virtual desktop (on platforms that support this concept). A widget receives spontaneous show and hide events when its mapping status is changed by the window system, e.g. a spontaneous hide event when the user minimizes the window, and a spontaneous show event when the window is restored again.

You almost never have to reimplement the setVisible() function. If you need to change some settings before a widget is shown, use showEvent() instead. If you need to do some delayed initialization use the Polish event delivered to the event() function.

Access functions:

See also show(), hide(), isHidden(), isVisibleTo(), isMinimized(), showEvent(), and hideEvent().

whatsThis : QString

This property holds the widget's What's This help text.

By default, this property contains an empty string.

Access functions:

See also QWhatsThis, QWidget::toolTip, and QWidget::statusTip.

width : const int

This property holds the width of the widget excluding any window frame

See the Window Geometry documentation for an overview of geometry issues with windows.

By default, this property contains a value that depends on the user's platform and screen geometry.

Access functions:

See also geometry, height, and size.

windowFilePath : QString

This property holds the file path associated with a widget

This property only makes sense for windows. It associates a file path with a window. If you set the file path, but have not set the window title, Qt sets the window title to the file name of the specified path, obtained using QFileInfo::fileName().

If the window title is set at any point, then the window title takes precedence and will be shown instead of the file path string.

Additionally, on macOS, this has an added benefit that it sets the proxy icon for the window, assuming that the file path exists.

If no file path is set, this property contains an empty string.

By default, this property contains an empty string.

This property was introduced in Qt 4.4.

Access functions:

See also windowTitle and windowIcon.

windowFlags : Qt::WindowFlags

Window flags are a combination of a type (e.g. Qt::Dialog) and zero or more hints to the window system (e.g. Qt::FramelessWindowHint).

If the widget had type Qt::Widget or Qt::SubWindow and becomes a window (Qt::Window, Qt::Dialog, etc.), it is put at position (0, 0) on the desktop. If the widget is a window and becomes a Qt::Widget or Qt::SubWindow, it is put at position (0, 0) relative to its parent widget.

Access functions:

See also windowType(), setWindowFlag(), and Window Flags Example.

windowIcon : QIcon

This property holds the widget's icon

This property only makes sense for windows. If no icon has been set, windowIcon() returns the application icon (QApplication::windowIcon()).

Access functions:

Notifier signal:

See also windowTitle and setWindowFilePath.

windowModality : Qt::WindowModality

This property holds which windows are blocked by the modal widget

This property only makes sense for windows. A modal widget prevents widgets in other windows from getting input. The value of this property controls which windows are blocked when the widget is visible. Changing this property while the window is visible has no effect; you must hide() the widget first, then show() it again.

By default, this property is Qt::NonModal.

This property was introduced in Qt 4.1.

Access functions:

See also isWindow(), QWidget::modal, and QDialog.

windowModified : bool

This property holds whether the document shown in the window has unsaved changes

A modified window is a window whose content has changed but has not been saved to disk. This flag will have different effects varied by the platform. On macOS the close button will have a modified look; on other platforms, the window title will have an '*' (asterisk).

The window title must contain a "[*]" placeholder, which indicates where the '*' should appear. Normally, it should appear right after the file name (e.g., "document1.txt[*] - Text Editor"). If the window isn't modified, the placeholder is simply removed.

Note that if a widget is set as modified, all its ancestors will also be set as modified. However, if you call setWindowModified(false) on a widget, this will not propagate to its parent because other children of the parent might have been modified.

Access functions:

See also windowTitle, Application Example, SDI Example, and MDI Example.

windowOpacity : double

This property holds the level of opacity for the window.

The valid range of opacity is from 1.0 (completely opaque) to 0.0 (completely transparent).

By default the value of this property is 1.0.

This feature is available on Embedded Linux, macOS, Windows, and X11 platforms that support the Composite extension.

Access functions:

See also setMask().

windowTitle : QString

This property holds the window title (caption)

This property only makes sense for top-level widgets, such as windows and dialogs. If no caption has been set, the title is based of the windowFilePath. If neither of these is set, then the title is an empty string.

If you use the windowModified mechanism, the window title must contain a "[*]" placeholder, which indicates where the '*' should appear. Normally, it should appear right after the file name (e.g., "document1.txt[*] - Text Editor"). If the windowModified property is false (the default), the placeholder is simply removed.

On some desktop platforms (including Windows and Unix), the application name (from QGuiApplication::applicationDisplayName) is added at the end of the window title, if set. This is done by the QPA plugin, so it is shown to the user, but isn't part of the windowTitle string.

Access functions:

Notifier signal:

See also windowIcon, windowModified, and windowFilePath.

x : const int

This property holds the x coordinate of the widget relative to its parent including any window frame

See the Window Geometry documentation for an overview of geometry issues with windows.

By default, this property has a value of 0.

Access functions:

See also frameGeometry, y, and pos.

y : const int

This property holds the y coordinate of the widget relative to its parent and including any window frame

See the Window Geometry documentation for an overview of geometry issues with windows.

By default, this property has a value of 0.

Access functions:

See also frameGeometry, x, and pos.