subject_31649.htm

一些关于vc的问答

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序号：31649 发表者：mikezhao 发表日期：2003-03-06 10:37:21
<br>主题：谁知道BeginFlush这个函数是干什么的？
<br>内容：memfilter里面引用类CAsyncIo。它的析构函数会调用BeginFlush。这个函数是干啥用的？
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<font color=red>答案被接受</font><br>回复者：微笑的撒旦 回复日期：2003-03-06 14:45:03
<br>内容：In a flush operation, a filter discards whatever data it was processing. It rejects new data until the flush is completed. The flush is completed when the upstream pin calls the IPin::EndFlush method. Flushing enables the filter graph to be more responsive when events alter the normal data flow. For example, flushing occurs during a seek. 
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