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 .