QStyleHints Class

See also QGuiApplication::styleHints()

This property holds the text cursor's flash (blink) time in milliseconds.

The flash time is the time used to display, invert and restore the caret display. Usually the text cursor is displayed for half the cursor flash time, then hidden for the same amount of time.

Access functions:

• int cursorFlashTime() const

Notifier signal:

• void cursorFlashTimeChanged(int cursorFlashTime)

This property holds the gamma value used in font smoothing.

Access functions:

• qreal fontSmoothingGamma() const

This property holds the rate, in events per second, in which additional repeated key presses will automatically be generated if a key is being held down.

Access functions:

• int keyboardAutoRepeatRate() const

This property holds the time limit, in milliseconds, that distinguishes a key press from two consecutive key presses.

Access functions:

• int keyboardInputInterval() const

Notifier signal:

• void keyboardInputIntervalChanged(int keyboardInputInterval)

This property holds the maximum distance, in pixels, that the mouse can be moved between two consecutive mouse clicks and still have it detected as a double-click

This property was introduced in Qt 5.14.

Access functions:

• int mouseDoubleClickDistance() const

This property holds the time limit in milliseconds that distinguishes a double click from two consecutive mouse clicks.

Access functions:

• int mouseDoubleClickInterval() const

Notifier signal:

• void mouseDoubleClickIntervalChanged(int mouseDoubleClickInterval)

This property holds the time limit in milliseconds that activates a press and hold.

This property was introduced in Qt 5.3.

Access functions:

• int mousePressAndHoldInterval() const

Notifier signal:

• void mousePressAndHoldIntervalChanged(int mousePressAndHoldInterval)

Quick selection mouse threshold in QLineEdit.

This property defines how much the mouse cursor should be moved along the y axis to trigger a quick selection during a normal QLineEdit text selection.

If the property value is less than or equal to 0, the quick selection feature is disabled.

This property was introduced in Qt 5.11.

Access functions:

• int mouseQuickSelectionThreshold() const

Notifier signal:

• void mouseQuickSelectionThresholdChanged(int threshold)

This property holds the character used to mask the characters typed into text input fields in password mode.

Access functions:

• passwordMaskCharacter() const

This property holds the time, in milliseconds, a typed letter is displayed unshrouded in a text input field in password mode.

Access functions:

• int passwordMaskDelay() const

This property holds the event that should set input focus on focus objects.

This property is true if focus objects (line edits etc) should receive input focus after a touch/mouse release. This is normal behavior on touch platforms. On desktop platforms, the standard is to set focus already on touch/mouse press.

Access functions:

• bool setFocusOnTouchRelease() const

This property holds whether the platform defaults to fullscreen windows.

This property is true if the platform defaults to windows being fullscreen, otherwise false.

Access functions:

• bool showIsFullScreen() const

See Also▲

This property holds whether the platform defaults to maximized windows.

This property is true if the platform defaults to windows being maximized, otherwise false.

This property was introduced in Qt 5.6.

Access functions:

• bool showIsMaximized() const

See Also▲

true if the platform normally shows shortcut key sequences in context menus, otherwise false.

Since Qt 5.13, the setShowShortcutsInContextMenus() function can be used to override the platform default.

This property was introduced in Qt 5.10.

Access functions:

• bool showShortcutsInContextMenus() const

• void setShowShortcutsInContextMenus(bool showShortcutsInContextMenus)

Notifier signal:

• void showShortcutsInContextMenusChanged(bool)

This property holds whether items are activated by single or double click.

This property is true if items should be activated by single click, false if they should be activated by double click instead.

This property was introduced in Qt 5.5.

Access functions:

• bool singleClickActivation() const

This property holds the distance, in pixels, that the mouse must be moved with a button held down before a drag and drop operation will begin.

If you support drag and drop in your application, and want to start a drag and drop operation after the user has moved the cursor a certain distance with a button held down, you should use this property's value as the minimum distance required.

For example, if the mouse position of the click is stored in startPos and the current position (e.g. in the mouse move event) is currentPos, you can find out if a drag should be started with code like this:

if ((startPos - currentPos).manhattanLength() >=
        QApplication::startDragDistance())
    startTheDrag();

Access functions:

• int startDragDistance() const

Notifier signal:

• void startDragDistanceChanged(int startDragDistance)

See Also▲

This property holds the time, in milliseconds, that a mouse button must be held down before a drag and drop operation will begin.

If you support drag and drop in your application, and want to start a drag and drop operation after the user has held down a mouse button for a certain amount of time, you should use this property's value as the delay.

Access functions:

• int startDragTime() const

Notifier signal:

• void startDragTimeChanged(int startDragTime)

See Also▲

This property holds the limit for the velocity, in pixels per second, that the mouse may be moved, with a button held down, for a drag and drop operation to begin. A value of 0 means there is no such limit.

Access functions:

• int startDragVelocity() const

See Also▲

This property holds the focus behavior on press of the tab key.

This property was introduced in Qt 5.5.

Access functions:

• tabFocusBehavior() const

Notifier signal:

• void tabFocusBehaviorChanged( tabFocusBehavior)

This property holds the maximum distance, in pixels, that a finger can be moved between two consecutive taps and still have it detected as a double-tap

This property was introduced in Qt 5.14.

Access functions:

• int touchDoubleTapDistance() const

This property holds whether UI elements use hover effects.

This property is true if UI elements should use hover effects. This is the standard behavior on desktop platforms with a mouse pointer, whereas on touch platforms the overhead of hover event delivery can be avoided.

This property was introduced in Qt 5.8.

Access functions:

• bool useHoverEffects() const

• void setUseHoverEffects(bool useHoverEffects)

Notifier signal:

• void useHoverEffectsChanged(bool useHoverEffects)

This property holds the writing direction.

This property is true if right-to-left writing direction is enabled, otherwise false.

Access functions:

• bool useRtlExtensions() const

Number of lines to scroll by default for each wheel click.

This property was introduced in Qt 5.9.

Access functions:

• int wheelScrollLines() const

Notifier signal:

• void wheelScrollLinesChanged(int scrollLines)