The platform offers an in depth number of slot video games, every with its distinctive storyline, aesthetics, and gameplay mechanics. On macOS the widget might be rendered right into a QPixmap and then drawn by the painter. If neither of those is set, then the title is an empty string. If no style is about, the widget makes use of the appliance's fashion, QApplication::style() as a substitute. If no icon has been set, windowIcon() returns the application icon (QApplication::windowIcon()). EnabledTo(0) returns false if this widget or any if its ancestors was explicitly disabled. QWidget's palette propagation is just like its font propagation. See also font(), fontMetrics(), and setFont(). See additionally keyReleaseEvent(), setFocusPolicy(), focusInEvent(), focusOutEvent(), event(), QKeyEvent, and Tetrix Instance. Both QAction and QShortcut handle all the event filtering for you, and supply signals that are triggered when the user triggers the key sequence, so are a lot easier to make use of than this low-stage operate. This occasion handler, for event event, might be reimplemented in a subclass to obtain key launch occasions for the widget. This event handler, for occasion event, can be reimplemented in a subclass to obtain mouse move occasions for the widget. When the consumer resizes the window, the scale will move in steps of sizeIncrement().width() pixels horizontally and sizeIncrement.peak() pixels vertically, with baseSize() as the premise. Window flags are a mix of a sort (e.g. Qt::Dialog) and zero or extra hints to the window system (e.g. Qt::FramelessWindowHint). If the acknowledged occasion was accepted (see QEvent::accepted), any further processing akin to occasion propagation to the mum or dad widget stops. When utilizing model sheets, the palette of a widget may be customized utilizing the "coloration", "background-color", "choice-shade", "choice-background-shade" and "alternate-background-coloration".

Hides the widget. This operate is equivalent to setVisible(false). Warning: Don't use this perform at the side of Qt Type Sheets. In your reimplementation of this operate, if you want to stop the event being handled by Qt, return true and set result. The function known as by Qt internally, and the default implementation might not always return a legitimate pointer. This operate doesn't trigger a direct repaint; as a substitute it schedules a paint event for processing when Qt returns to the principle occasion loop. Warning: Altering this property from opaque to transparent would possibly situation a paint event that needs to be processed earlier than the window is displayed accurately. This occasion handler is called if a drag is in progress, and when any of the next situations happen: the cursor enters this widget, the cursor moves inside this widget, or a modifier key is pressed on the keyboard whereas this widget has the focus. Grabs the mouse input and adjustments the cursor shape. It is nearly never necessary to seize the mouse when using Qt, as Qt grabs and releases it sensibly. Particularly, Qt grabs the mouse when a mouse button is pressed and keeps it till the final button is released. For press and launch events, the position is usually the same because the place of the final mouse move event, nevertheless it is perhaps different if the consumer's hand shakes. I did a bit extra refinement on the Lua bowling instance from last time. Should you create new widgets within the mousePressEvent() the mouseReleaseEvent() may not end up where you anticipate, depending on the underlying window system (or X11 window supervisor), the widgets' location and possibly extra. This permits Qt to optimize for extra pace and less flicker than a name to repaint() does. This speed optimization doesn't change the end result, as painting is clipped to that region throughout occasion processing. In almost all circumstances replace() is better, because it permits Qt to optimize for velocity and decrease flicker. See additionally replace(), paintEvent(), and setUpdatesEnabled(). See additionally repaint(), paintEvent(), setUpdatesEnabled(), solbetpe and Analog Clock Example. Since Qt 4.0, QWidget robotically double-buffers its painting, so there isn't a need to write double-buffering code in paintEvent() to keep away from flicker. See also closeEvent(), focusInEvent(), focusOutEvent(), enterEvent(), keyPressEvent(), keyReleaseEvent(), leaveEvent(), mouseDoubleClickEvent(), mouseMoveEvent(), mousePressEvent(), mouseReleaseEvent(), moveEvent(), paintEvent(), resizeEvent(), QObject::event(), and QObject::timerEvent(). When altering the position, the widget, if seen, receives a move occasion (moveEvent()) instantly.