The QWheelEvent class contains parameters that describe a mouse wheel event. 更多...
| 头： | #include <Qt3DInput/QWheelEvent> |
| qmake: | QT += 3dinput |
| Since: | Qt 5.5 |
| 实例化： | WheelEvent |
| 继承： | QObject |
| enum | Buttons { LeftButton, RightButton, MiddleButton, BackButton, NoButton } |
| enum | Modifiers { NoModifier, ShiftModifier, ControlModifier, AltModifier, MetaModifier, KeypadModifier } |
|
| QWheelEvent (const ::QWheelEvent & e ) | |
| virtual | ~QWheelEvent () |
| QPoint | angleDelta () const |
| int | buttons () const |
| bool | isAccepted () const |
| Qt3DInput::QWheelEvent::Modifiers | modifiers () const |
| void | setAccepted (bool accepted ) |
| QEvent::Type | type () const |
| int | x () const |
| int | y () const |
| const QMetaObject | staticMetaObject |
| typedef | QWheelEventPtr |
The QWheelEvent class contains parameters that describe a mouse wheel event.
Mouse wheel events occur when the mouse is rotated.
另请参阅 QKeyEvent , QMouseEvent ，和 QMouseHandler .
| 常量 | 值 |
|---|---|
Qt3DInput::QWheelEvent::LeftButton
|
Qt::LeftButton
|
Qt3DInput::QWheelEvent::RightButton
|
Qt::RightButton
|
Qt3DInput::QWheelEvent::MiddleButton
|
Qt::MiddleButton
|
Qt3DInput::QWheelEvent::BackButton
|
Qt::BackButton
|
Qt3DInput::QWheelEvent::NoButton
|
Qt::NoButton
|
| 常量 | 值 |
|---|---|
Qt3DInput::QWheelEvent::NoModifier
|
Qt::NoModifier
|
Qt3DInput::QWheelEvent::ShiftModifier
|
Qt::ShiftModifier
|
Qt3DInput::QWheelEvent::ControlModifier
|
Qt::ControlModifier
|
Qt3DInput::QWheelEvent::AltModifier
|
Qt::AltModifier
|
Qt3DInput::QWheelEvent::MetaModifier
|
Qt::MetaModifier
|
Qt3DInput::QWheelEvent::KeypadModifier
|
Qt::KeypadModifier
|
Specifies if the mouse wheel event has been accepted
访问函数：
| bool | isAccepted () const |
| void | setAccepted (bool accepted ) |
Specifies The change wheel angle of the mouse wheel event
访问函数：
| QPoint | angleDelta () const |
Specifies the button if present in the mouse wheel event
访问函数：
| int | buttons () const |
Specifies if any modifiers were applied to the mouse wheel event
访问函数：
| Qt3DInput::QWheelEvent::Modifiers | modifiers () const |
Specifies The X coordinate of the mouse wheel event
访问函数：
| int | x () const |
Specifies The Y coordinate of the mouse wheel event
访问函数：
| int | y () const |
构造新的 QWheelEvent instance from the QWheelEvent e .
[虚拟]
QWheelEvent::
~QWheelEvent
()
Destroys the instance of QWheelEvent. The destructor is virtual.
Returns the distance that the wheel is rotated, in eighths of a degree. A positive value indicates that the wheel was rotated forward (away from the user), a negative value indicates the wheel was rotated backward (toward the user).
注意： getter 函数对于特性 angleDelta .
Returns a bitfield to be used to check for mouse buttons that may be accompanying the wheel event.
注意： getter 函数对于特性 buttons .
Returns whether the event was accepted.
注意： getter 函数对于特性 accepted .
Returns the keyboard modifiers that may be accompanying the wheel event.
注意： getter 函数对于特性 modifiers .
Sets the event as accepted if accepted 为 true。
注意： When an event is accepted, it will prevent further propagation to other listeners.
注意： setter 函数对于特性 accepted .
另请参阅 isAccepted ().
返回 QEvent::Type of the event.
Returns the x position of the mouse event.
注意： getter 函数对于特性 x .
Returns the x position of the mouse event.
注意： getter 函数对于特性 y .
共享指针为 QWheelEvent .