运行时MediaPlayer创建:如何正确初始化Ocxstate? [英] Runtime MediaPlayer creation: how to properly initialize Ocxstate?

问题描述

我正在尝试创建一个MediaPlayer类，以便可以在运行时生成实例，但始终会得到无效的Ocxstate. ，所以我尝试的方法不正确.
如何使它起作用?

Hi,

I am trying to create a MediaPlayer class so I can generate instances at runtime, but keep getting an invalid Ocxstate.
Uncommenting the commented-out Ocx statement does not help, so what I tried is incorrect.
How can I get this to work?

    class MyMediaPlayer : AxWMPLib.AxWindowsMediaPlayer
    {
        public MyMediaPlayer(string name)
        {
            // without OcxState set, throws InvalidActiveXStateException when a MyMediaPlayer instance is used
            ComponentResourceManager resources = new ComponentResourceManager();
            ((ISupportInitialize)(this)).BeginInit();
            // OcxState = ((AxHost.State)(resources.GetObject(name + ".OcxState")));
            ((ISupportInitialize)(this)).EndInit();
        }
    }

推荐答案

您是否按照以下步骤创建了互操作包装程序?

Did you follow these steps to create your interop wrapper?

http://msdn.microsoft.com/en-us/library/ms742735.aspx

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