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 |
该类在 Qt 5.5 引入。
| enum | Buttons { LeftButton, RightButton, MiddleButton, BackButton, NoButton } |
| enum | Modifiers { NoModifier, ShiftModifier, ControlModifier, AltModifier, MetaModifier, KeypadModifier } |
|
| QWheelEvent (const ::QWheelEvent & e ) | |
| 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 |
| typedef | QWheelEventPtr |
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 |
Constructs a new QWheelEvent instance from the QWheelEvent e .
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 function for property 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 function for property 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 function for property x.
Returns the x position of the mouse event.
注意： Getter function for property y.
共享指针为 QWheelEvent .
