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DirectShow中的事件通知机制[17]

[入库：2005年8月19日] [更新：2007年3月24日]

本文简介：选择自 aoosang 的 blog
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send by the video control when a graph has been torn down. not forwarded to applications.

ec_userabort

the user has terminated playback.

ec_video_size_changed

the native video size has changed.

ec_vmr_renderdevice_set

sent when the vmr has selected its rendering mechanism.

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本文关键：DirectShow中的事件通知机制
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