The A - Z Information Of Slot
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One of the best weakness may very well be that, you won't slot in the technology making certain your profession depressing. On Windows, if you're calling this when the application will not be currently the energetic one then it will not make it the lively window. If neither of these is set, then the title is an empty string. If no fashion is ready, the widget makes use of the applying's type, QApplication::model() as an alternative. If no icon has been set, windowIcon() returns the applying icon (QApplication::windowIcon()). EnabledTo(0) returns false if this widget or any if its ancestors was explicitly disabled. See also font(), fontInfo(), and setFont(). See also font(), fontMetrics(), and setFont(). See also occasion(), cover(), close(), QCloseEvent, and Utility Instance. This occasion handler can be reimplemented in a subclass to obtain keyboard focus occasions (focus misplaced) for the widget. This occasion handler, for occasion occasion, could be reimplemented in a subclass to receive Enter Method composition events. Note: Occasions are solely delivered to this occasion handler if the widget has a native window handle. It will cost extra to amass more time cords as in comparison with faster variations. Frees up window system resources. If the recognized event was accepted (see QEvent::accepted), any additional processing reminiscent of event propagation to the mum or dad widget stops. Stacking order; The embedded window will stack on prime of the widget hierarchy as an opaque field.
Hides the widget. This operate is equivalent to setVisible(false). By reimplementing this function for an object, you thus acquire control of focus traversal for all child widgets. In your reimplementation of this perform, if you wish to stop the occasion being dealt with by Qt, return true and set consequence. The operate is called by Qt internally, and the default implementation may not at all times return a sound pointer. Inside implementation of the virtual QPaintDevice::metric() operate. Warning: Altering this property from opaque to clear would possibly situation a paint occasion that needs to be processed before the window is displayed accurately. This event handler is called if a drag is in progress, and when any of the next conditions occur: the cursor enters this widget, the cursor strikes within this widget, or a modifier key is pressed on the keyboard whereas this widget has the main focus. Grabs the mouse enter and changes the cursor form. It is nearly never essential to seize the mouse when using Qt, as Qt grabs and releases it sensibly. In particular, Qt grabs the mouse when a mouse button is pressed and keeps it till the last button is launched. For instance, an online browser would possibly reimplement it to move its "present lively link" forward or backward, and call focusNextPrevChild() only when it reaches the last or 1win casino first link on the "web page". I did a bit extra refinement on the Lua bowling example from final time. In case you create new widgets within the mousePressEvent() the mouseReleaseEvent() might not end up where you expect, relying on the underlying window system (or X11 window manager), the widgets' location and maybe extra. This permits Qt to optimize for extra speed and less flicker than a name to repaint() does. This pace optimization doesn't change the result, as painting is clipped to that area during event processing. In virtually all circumstances update() is healthier, because it permits Qt to optimize for speed and minimize flicker. See also occasion(), repaint(), update(), QPainter, QPixmap, QPaintEvent, and Analog Clock Example. See additionally repaint(), paintEvent(), setUpdatesEnabled(), and Analog Clock Example. Since Qt 4.0, QWidget automatically double-buffers its painting, so there is no such thing as a need to put in writing double-buffering code in paintEvent() to keep away from flicker. See additionally closeEvent(), focusInEvent(), focusOutEvent(), enterEvent(), keyPressEvent(), keyReleaseEvent(), leaveEvent(), mouseDoubleClickEvent(), mouseMoveEvent(), mousePressEvent(), mouseReleaseEvent(), moveEvent(), paintEvent(), resizeEvent(), QObject::event(), and QObject::timerEvent(). When changing the position, the widget, if seen, receives a move event (moveEvent()) instantly.
Hides the widget. This operate is equivalent to setVisible(false). By reimplementing this function for an object, you thus acquire control of focus traversal for all child widgets. In your reimplementation of this perform, if you wish to stop the occasion being dealt with by Qt, return true and set consequence. The operate is called by Qt internally, and the default implementation may not at all times return a sound pointer. Inside implementation of the virtual QPaintDevice::metric() operate. Warning: Altering this property from opaque to clear would possibly situation a paint occasion that needs to be processed before the window is displayed accurately. This event handler is called if a drag is in progress, and when any of the next conditions occur: the cursor enters this widget, the cursor strikes within this widget, or a modifier key is pressed on the keyboard whereas this widget has the main focus. Grabs the mouse enter and changes the cursor form. It is nearly never essential to seize the mouse when using Qt, as Qt grabs and releases it sensibly. In particular, Qt grabs the mouse when a mouse button is pressed and keeps it till the last button is launched. For instance, an online browser would possibly reimplement it to move its "present lively link" forward or backward, and call focusNextPrevChild() only when it reaches the last or 1win casino first link on the "web page". I did a bit extra refinement on the Lua bowling example from final time. In case you create new widgets within the mousePressEvent() the mouseReleaseEvent() might not end up where you expect, relying on the underlying window system (or X11 window manager), the widgets' location and maybe extra. This permits Qt to optimize for extra speed and less flicker than a name to repaint() does. This pace optimization doesn't change the result, as painting is clipped to that area during event processing. In virtually all circumstances update() is healthier, because it permits Qt to optimize for speed and minimize flicker. See also occasion(), repaint(), update(), QPainter, QPixmap, QPaintEvent, and Analog Clock Example. See additionally repaint(), paintEvent(), setUpdatesEnabled(), and Analog Clock Example. Since Qt 4.0, QWidget automatically double-buffers its painting, so there is no such thing as a need to put in writing double-buffering code in paintEvent() to keep away from flicker. See additionally closeEvent(), focusInEvent(), focusOutEvent(), enterEvent(), keyPressEvent(), keyReleaseEvent(), leaveEvent(), mouseDoubleClickEvent(), mouseMoveEvent(), mousePressEvent(), mouseReleaseEvent(), moveEvent(), paintEvent(), resizeEvent(), QObject::event(), and QObject::timerEvent(). When changing the position, the widget, if seen, receives a move event (moveEvent()) instantly.
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