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7.2

TDynByteArray (Array of Byte) - Save to Stream?

Asked by darrello in Delphi Programming

Tags: array, stream, byte, save

I have a SOAP object that is handing back a TDynByteArray (aka Array of Byte) that is a file.

I want to save this array to a TFileStream. So far I have been able to do it, but it just seems wrong - I am converting the Byte array to a String, and using the TFileStream.WriteBuff(stringVariable,Length(stringVariable) to do it.

Should I not be able to do the following:

bytesArrayFile:=SOAPObject.ReadFile;
count:=Length(bytesArrayFile);

MIMEString:=BytesToString(bytesArrayFile); // Converts the byte array to a string.

FileStream:=TFileStream.Create('c:\temp\output3.xml',fmCreate);
// THE FOLLOWING LINE OF CODE WORKS - BUT I DON'T THINK I SHOULD BE
// CONVERTING THE BYTE ARRAY TO STRING AND THEN SAVING IT - COULD
// HAVE CONVERSION ISSUES.
FileStream.WriteBuffer(PChar(MIMEString)^,Length(MIMEString));

// THE FOLLOWING LINES ARE THINGS I HAVE TRIED - THEY REPLACE THE .WriteBuffer line above

pos:=FileStream.WriteBuffer(bytesArrayFile,DynArrayLength(bytesArrayFile); // DOESN'T WORK

// THIS LOOP WORKS - BUT IT IS REALLY, REALLY SLOW.
for i:= 0 to (count - 1) do begin
FileStream.Write(bytesArrayFile[i],1);
end;

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20091111-EE-VQP-92

TDynByteArray (Array of Byte) - Save to Stream?

Asked by darrello in Delphi Programming

Tags: array, stream, byte, save

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