MIME Encoding and TFileStream error

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5 total messages Started by Mr. Wuf Sun, 29 Jan 2006 18:40

#2746

Author: Mr. Wuf
Date: Sun, 29 Jan 2006 18:40

10 lines
1187 bytes

Hello,

why does this code not work? Error: Stream read error

  TFileStream *FStream = new TFileStream("C:\\somefile.xyz", fmOpenRead ||
fmShareDenyWrite);
  String SndText = IdEncoderMIME1->Encode(FStream, FStream->Size);
  delete FStream;

Where is the problem?

Re: MIME Encoding and TFileStream error

#2748

Author: Hans Galema
Date: Sun, 29 Jan 2006 20:18

11 lines
1264 bytes

Mr. Wuf wrote:

> why does this code not work? Error: Stream read error

  fmOpenRead || fmShareDenyWrite

You should bitwise construct the Mode parameter:

  fmOpenRead | fmShareDenyWrite

Hans.

Re: MIME Encoding and TFileStream error

#2747

Author: Mr. Wuf
Date: Sun, 29 Jan 2006 20:26

1 lines
1029 bytes

Thank you Hans!

Re: MIME Encoding and TFileStream error

#2752

Author: Mr. Wuf
Date: Mon, 30 Jan 2006 09:14

9 lines
1364 bytes

Sorry, my next problem: I need to transfer a binary file as a string. When I
decode the base64 string to a TFileStream I get corrupted files!

  TFileStream *FStream = new TFileStream("C:\\test.png", fmCreate |
fmOpenReadWrite);
  IdDecoderMIME1->DecodeToStream(Memo1->Text,FStream);
//  FStream->Size = 130677;  // original filesize: 130677, size of corrupted
file: 140768
  delete FStream;

Re: MIME Encoding and TFileStream error

#2753

Author: Hans Galema
Date: Mon, 30 Jan 2006 10:04

20 lines
1901 bytes

Mr. Wuf wrote:
> Sorry, my next problem: I need to transfer a binary file as a string. When I
> decode the base64 string to a TFileStream I get corrupted files!

Seeing your code you mean: I did base64 encode the contents of a file. And
no I try to decode it to a stream.

>   TFileStream *FStream = new TFileStream("C:\\test.png", fmCreate |
> fmOpenReadWrite);
>   IdDecoderMIME1->DecodeToStream(Memo1->Text,FStream);
> //  FStream->Size = 130677;  // original filesize: 130677, size of corrupted
> file: 140768
>   delete FStream;

Corrupted ? It is longer yes. But what do contain the first 130677 bytes ?
The original file contents ?

What is in the result file ? Dit you look in it ?

Hans.

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