Delphi - MemoryStream or FileStream -

i downloading exe file internet using indy (idhttp), , can use memorystream or filestream save disk, not know if there difference between them (maybe in result structure of file?). could't find yet answer this.

where, here 2 simple functions simulate doing:

function downloadms(furl, dest: string): boolean; var   http: tidhttp;   strm: tmemorystream; begin   result := false;   http := tidhttp.create;   strm := tmemorystream.create;   http, strm   try     try       get(furl, strm);       if (size > 0)       begin         position := 0;         savetofile(dest);         result := true;       end;     except     end;       strm.free;     http.free;   end; end;  function downloadfs(furl, dest: string): boolean; var   http: tidhttp;   strm: tfilestream; begin   result := false;   http := tidhttp.create;   strm := tfilestream.create(dest, fmcreate);   http, strm   try     try       get(furl, strm);       result := (size > 0);     except     end;       strm.free;     http.free;   end; end; 

what experts think using 1 or other type (memorystream or filestream)? there difference in structure of exe file when using 1 or other type? type recommended?

thank you! have nice weekend!

there no difference between tmemorystream or tfilestream stream point of view.

they both streams , hold stream of bytes , both derived tstream.

you can implement function generalized this

function downloadtostream( const aurl : string; adest : tstream ): boolean; var   lhttp: tidhttp; begin   lhttp := tidhttp.create;   try     lhttp.get( aurl, adest );     result := adest.size > 0;       lhttp.free;   end; end; 

and call tfilestream

var   lstream : tstream;  begin   lstream := tfilestream.create( 'myfile.exe', fmcreate );   if downloadtostream( '', lstream )     ... end; 

or tmemorystream or whatever stream instance like