动态创建的控件怎样才能跟预先放置的控件完全一样？

为什么我用动态创建的DSPACK的控件就无法正确执行，而不是动态创建得旧可以？  FilterGraph:=TFilterGraph.Create(self);
  Filter:=TFilter.Create(self);
  SampleGrabber:=TSampleGrabber.Create(self);
  FilterGraph.AutoCreate:=false;
  FilterGraph.GraphEdit:=true;
  FilterGraph.Mode:=gmCapture;
  Filter.FilterGraph:=FilterGraph;
  SampleGrabber.FilterGraph:=FilterGraph;
  SampleGrabber.OnBuffer:=SampleGrabberBuffer; 
  VideoWindow:=TVideoWindow.Create(self);
  VideoWindow.Parent:=TabSheet1;
  VideoWindow.Align:=alClient;
  VideoWindow.FilterGraph:=FilterGraph;