以下成员源于类 QGraphicsItem 被弃用。 提供它们是为使旧源代码能继续工作。强烈建议不要在新代码中使用它们。
(deprecated)
bool
|
handlesChildEvents () const |
(deprecated)
void
|
setHandlesChildEvents (bool enabled ) |
This function is deprecated. We strongly advise against using it in new code.
返回
true
if this item handles child events (i.e., all events intended for any of its children are instead sent to this item); otherwise, false is returned.
This property is useful for item groups; it allows one item to handle events on behalf of its children, as opposed to its children handling their events individually.
The default is to return false; children handle their own events. The exception for this is if the item is a QGraphicsItemGroup , then it defaults to return true.
另请参阅 setHandlesChildEvents ().
This function is deprecated. We strongly advise against using it in new code.
若 enabled is true, this item is set to handle all events for all its children (i.e., all events intented for any of its children are instead sent to this item); otherwise, if enabled 为 false，此项仅处理它自己的事件。默认值为 false。
This property is useful for item groups; it allows one item to handle events on behalf of its children, as opposed to its children handling their events individually.
If a child item accepts hover events, its parent will receive hover move events as the cursor passes through the child, but it does not receive hover enter and hover leave events on behalf of its child.
另请参阅 handlesChildEvents ().
