Adds supplementary information to the QQuickItem::itemChange () 函数。 更多...
bool | boolValue |
QQuickItem * | item |
qreal | realValue |
QQuickWindow * | window |
The meaning of each member of this class is defined by the change type.
另请参阅 QQuickItem::ItemChange .
The boolean value that has changed: visible, enabled, activeFocus or antialiasing .
另请参阅 QQuickItem::ItemChange .
The item that has been added or removed as a child , or the new parent .
另请参阅 QQuickItem::ItemChange .
The numeric value that has changed: opacity , rotation or 设备像素比率 .
另请参阅 QQuickItem::ItemChange .
The
window
in which the item has been shown, or
nullptr
if the item has been removed from a window.
另请参阅 QQuickItem::ItemChange .