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QCustomEvent Class

The QCustomEvent class provides support for custom events. 更多...

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额外继承成员

• 1 特性继承自 QEvent
• 6 公共函数继承自 QEvent
• 1 静态公共成员继承自 QEvent

详细描述

The QCustomEvent class provides support for custom events.

QCustomEvent 拥有 void * that can be used to store custom data.

In Qt 3, QObject::customEvent () took a QCustomEvent pointer. We found out that this approach was unsatisfactory, because there was often no safe way of deleting the data held in the void * .

In Qt 4, QObject::customEvent () takes a plain QEvent pointer. You can add custom data by subclassing.

另请参阅 QObject::customEvent () 和 QCoreApplication::notify ().