Copiar un archivo a una tablet, conectada con USB

[[nlsgarcia]]

islu,

Revisa este link : http://delphi.cjcsoft.net/viewthread.php?tid=46036

En el aparecen los siguientes 5 métodos para copiar un archivo:

Código Delphi [-]
// Método-1:
Procedure FileCopy( Const sourcefilename, targetfilename: String );
Var
  S, T: TFileStream;
Begin
  S := TFileStream.Create( sourcefilename, fmOpenRead );
  try
    T := TFileStream.Create( targetfilename, fmOpenWrite or fmCreate );
    try
      T.CopyFrom(S, S.Size ) ;
    finally
      T.Free;
    end;
  finally
    S.Free;
  end;
End;

Código Delphi [-]
// Método-2:
procedure FileCopy(const FromFile, ToFile: string);
var
  FromF, ToF: file;
  NumRead, NumWritten: Word;
  Buf: array[1..2048] of Char;
begin
  AssignFile(FromF, FromFile);
  Reset(FromF, 1);        { Record size = 1 }
  AssignFile(ToF, ToFile);    { Open output file }
  Rewrite(ToF, 1);        { Record size = 1 }
  repeat
    BlockRead(FromF, Buf, SizeOf(Buf), NumRead);
    BlockWrite(ToF, Buf, NumRead, NumWritten);
  until (NumRead = 0) or (NumWritten < NumRead);
  System.CloseFile(FromF);
  System.CloseFile(ToF);
end;

Código Delphi [-]
// Método-3:
procedure CopyFile(FromFileName, ToFileName: string);
var
  FromFile, ToFile: File;
begin
  AssignFile(FromFile, FromFileName); { Assign FromFile to FromFileName }
  AssignFile(ToFile, ToFileName);     { Assign ToFile to ToFileName }
  Reset(FromFile);                    { Open file for input }
  try
    Rewrite(ToFile);                  { Create file for output }
    try

      { copy the file an if a negative value is returned raise an exception }
      if LZCopy(TFileRec(FromFile).Handle, TFileRec(ToFile).Handle)         raise Exception.Create('Error using LZCopy')
    finally
      CloseFile(ToFile);  { Close ToFile }
    end;
  finally
    CloseFile(FromFile);  { Close FromFile }
  end;
end;

Código Delphi [-]
// Método-4:
procedure CopyFile(FromFileName, ToFileName: string);
var
  shellinfo: TSHFileOpStructA;
  Files:String;
begin
  Files:=FromFileName+#0+#0;
  with shellinfo do
  begin
    Wnd:=Self.handle;
    wFunc:=FO_COPY;
    pFrom:=PChar(Files);
    pTo:=PChar(ToFileName);
    fFlags:=FOF_NOCONFIRMATION or FOF_SILENT;
  end;
  SHFileOperation(shellinfo);
end;

Código Delphi [-]
// Método-5:
copyfile(PChar(FromFileName),PChar(ToFileName),False);

Espero sea útil

Nelson.