QStyleHints Class

Property Documentation

cursorFlashTime : const int

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)

fontSmoothingGamma : const qreal

This property holds the gamma value used in font smoothing.

Access functions:

qreal

fontSmoothingGamma() const

keyboardAutoRepeatRate : const int

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

keyboardInputInterval : const int

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)

mouseDoubleClickDistance : const int

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

mouseDoubleClickInterval : const int

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)

mousePressAndHoldInterval : const int

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)

mouseQuickSelectionThreshold : const int

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)

passwordMaskCharacter : const QChar

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

Access functions:

QChar

passwordMaskCharacter() const

passwordMaskDelay : const int

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

setFocusOnTouchRelease : const bool

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

showIsFullScreen : const bool

This property holds whether the platform defaults to fullscreen windows.

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

Note: The platform may still choose to show certain windows non-fullscreen, such as popups or dialogs. This property only reports the default behavior.

Access functions:

bool	showIsFullScreen() const

See also QWindow::show() and showIsMaximized().

showIsMaximized : const bool

This property holds whether the platform defaults to maximized windows.

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

Note: The platform may still choose to show certain windows non-maximized, such as popups or dialogs. This property only reports the default behavior.

This property was introduced in Qt 5.6.

Access functions:

bool	showIsMaximized() const

See also QWindow::show() and showIsFullScreen().

showShortcutsInContextMenus : bool

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)

singleClickActivation : const 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

startDragDistance : const int

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 startDragTime, QPoint::manhattanLength(), and Drag and Drop.

startDragTime : const int

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 startDragDistance and Drag and Drop.

startDragVelocity : const int

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 startDragDistance and Drag and Drop.

tabFocusBehavior : const Qt::TabFocusBehavior

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

Note: Do not bind this value in QML because the change notifier signal is not implemented yet.

This property was introduced in Qt 5.5.

Access functions:

Qt::TabFocusBehavior

tabFocusBehavior() const

Notifier signal:

void	tabFocusBehaviorChanged(Qt::TabFocusBehavior tabFocusBehavior)

touchDoubleTapDistance : const int

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

useHoverEffects : bool

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)

useRtlExtensions : const bool

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

wheelScrollLines : const int

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)