无法删除MultiSourceFrameArrived的事件处理程序

问题描述

大家好。

我正在使用C＃开发KINECT应用程序。

I'm developing KINECT application with C#.

我想在MultiSourceFrame到达时触发一个事件第一次。我编写了如下代码...

I want to fire an event when MultiSourceFrame is arrived just first time. I wrote code like followings...

private EventHandler<MultiSourceFrameArrivedEventArgs> handler = null;

public void Ready()
{
    // setup multisoruceframe
    kinectReader = KinectSensor.OpenMultiSourceFrameReader(frameTypes);

    // setup event halder
    handler = (sender, e) =>
    {
        // do something
        // and remove handler
        kinectReader.MultiSourceFrameArrived -= handler;
    };

    // add handler
    kinectReader.MultiSourceFrameArrived += handler;
}

但处理程序未被删除。

MultiSourceFrameArrived的删除访问器是否正常工作？

Is MultiSourceFrameArrived's remove accessor working ?

问候。

推荐答案

尝试这一点，看看是否有帮助。

Try this and see if this helps.

而不是在委托中使用复制的对象KinectReader，而是将发送者转换为KinectReader对象，并从中移除多源帧到达的事件处理程序项。清单。

Instead of using the copied object KinectReader inside your delegate, convert sender to the KinectReader object instead and remove the multisource frame arrived event handler item from the list.

 // setup event handler
    handler = (sender, e) =>
    {

        var kinectReader = (MultiSourceFrameReader)sender;
        // do something
        // and remove handler
        kinectReader.MultiSourceFrameArrived -= this.handler;
    };

这篇关于无法删除MultiSourceFrameArrived的事件处理程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！