我用idhttp下载图片,请问怎么能显示图片下载进度? picStream:=TMemoryStream.Create;
IdHTTP1.Head(edtPicAddress.Text );
IdHTTP1.Get(edtPicAddress.Text ,picStream);
picStream.Free;
IdHTTP1.Head(edtPicAddress.Text );
IdHTTP1.Get(edtPicAddress.Text ,picStream);
picStream.Free;
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