QStyleHints Class

属性

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.

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Notifier signal:

fontSmoothingGamma : const qreal

This property holds the gamma value used in font smoothing.

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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.

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keyboardInputInterval : const int

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

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Notifier signal:

mouseDoubleClickInterval : const int

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

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Notifier signal:

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.

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passwordMaskCharacter : const QChar

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

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passwordMaskDelay : const int

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

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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.

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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.

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参见 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.

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参见 QWindow::show() and showIsFullScreen().

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.

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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();

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参见 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.

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参见 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.

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参见 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.

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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.

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useRtlExtensions : const bool

This property holds the writing direction.

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

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wheelScrollLines : const int

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

This property was introduced in Qt 5.9.

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Notifier signal: