DocumentComplete中，不过如果网页里有多个frame的话，要注意的有 In pages with no frames, this event fires one time after loading is complete. In pages where multiple frames are loaded, this event fires for each frame where the DWebBrowserEvents2::DownloadBegin event has fired. This event pDisp parameter is the same as the IDispatch interface pointer of the frame in which this event fires. In the loading process, the highest level frame, which is not necessarily the top-level frame, fires the final DWebBrowserEvents2::DocumentComplete event. At this time, the pDisp parameter is the same as the IDispatch interface pointer of the highest level frame.
In pages with no frames, this event fires one time after loading is complete.
In pages where multiple frames are loaded, this event fires for each frame where the DWebBrowserEvents2::DownloadBegin event has fired.
This event pDisp parameter is the same as the IDispatch interface pointer of the frame in which this event fires.
In the loading process, the highest level frame, which is not necessarily the top-level frame, fires the final DWebBrowserEvents2::DocumentComplete event. At this time, the pDisp parameter is the same as the IDispatch interface pointer of the highest level frame.