QStyleOptionSpinBox Class | Qt Widgets 5.6

Qt 5.6 | Qt Widgets | C++ Classes | QStyleOptionSpinBox

Qt 5.6.2 Reference Documentation

# QStyleOptionSpinBox Class

The QStyleOptionSpinBox class is used to describe the parameters necessary for drawing a spin box. More...

Header: | #include <QStyleOptionSpinBox>
qmake: | QT += widgets
Inherits: | QStyleOptionComplex

- List of all members, including inherited members

## Public Types

enum | StyleOptionType { Type }
enum | StyleOptionVersion { Version }

## Public Functions

| QStyleOptionSpinBox()
| QStyleOptionSpinBox(const QStyleOptionSpinBox &other)

- 2 public functions inherited from QStyleOption

## Public Variables

QAbstractSpinBox::ButtonSymbols | buttonSymbols
bool | frame
QAbstractSpinBox::StepEnabled | stepEnabled

- 2 public variables inherited from QStyleOptionComplex
- 8 public variables inherited from QStyleOption

## Detailed Description

The QStyleOptionSpinBox class is used to describe the parameters necessary for drawing a spin box.

QStyleOptionSpinBox contains all the information that QStyle functions need to draw QSpinBox and QDateTimeEdit.

For performance reasons, the access to the member variables is direct (i.e., using the `.` or `->` operator). This low-level feel makes the structures straightforward to use and emphasizes that these are simply parameters used by the style functions.

For an example demonstrating how style options can be used, see the Styles example.

See also QStyleOption and QStyleOptionComplex.

## Member Type Documentation

### enum QStyleOptionSpinBox::StyleOptionType

This enum is used to hold information about the type of the style option, and is defined for each QStyleOption subclass.

Constant | Value | Description
--- | --- | ---
`QStyleOptionSpinBox::Type` | `SO_SpinBox` | The type of style option provided (SO_SpinBox for this class).

The type is used internally by QStyleOption, its subclasses, and qstyleoption_cast() to determine the type of style option. In general you do not need to worry about this unless you want to create your own QStyleOption subclass and your own styles.

See also StyleOptionVersion.

### enum QStyleOptionSpinBox::StyleOptionVersion

This enum is used to hold information about the version of the style option, and is defined for each QStyleOption subclass.

Constant | Value | Description
--- | --- | ---
`QStyleOptionSpinBox::Version` | `1` | 1

The version is used by QStyleOption subclasses to implement extensions without breaking compatibility. If you use qstyleoption_cast(), you normally do not need to check it.

See also StyleOptionType.

## Member Function Documentation

### QStyleOptionSpinBox::QStyleOptionSpinBox()

Constructs a QStyleOptionSpinBox, initializing the members variables to their default values.

### QStyleOptionSpinBox::QStyleOptionSpinBox(const QStyleOptionSpinBox &other)

Constructs a copy of the other style option.

## Member Variable Documentation

### QAbstractSpinBox::ButtonSymbols QStyleOptionSpinBox::buttonSymbols

This variable holds the type of button symbols to draw for the spin box.

The default value is QAbstractSpinBox::UpDownArrows specufying little arrows in the classic style.

See also QAbstractSpinBox::ButtonSymbols.

### bool QStyleOptionSpinBox::frame

This variable holds whether the spin box has a frame.

The default value is false, i.e. the spin box has no frame.

### QAbstractSpinBox::StepEnabled QStyleOptionSpinBox::stepEnabled

This variable holds which buttons of the spin box that are enabled.

The default value is QAbstractSpinBox::StepNone.

See also QAbstractSpinBox::StepEnabled.