Access Violation on TMemoryStream

[captian jaster]

Code: Pascal  [Select][+][-]

1. program MemStreamRead;
2.  
3. {$mode objfpc}{$H+}
4.  
5. uses
6.   Classes,SysUtils;
7.  
8. var
9.  FS:TMemoryStream;
10.  Buf:String = '';
11.  
12. begin
13.   Writeln('Trying to read the stream');
14.   FS := TMemoryStream.Create;
15.   FS.LoadFromFile('Mem.txt');
16.   Try
17.    FS.Read(Buf,SizeOf(String));
18.    Writeln(Buf);
19.   Except
20.    on E:Exception Do
21.     Writeln('Error: '+E.Message);
22.   end;
23.   Readln;
24. end.
25.                  
26.  

Whats wrong?
I'm trying to read a simple string from a file.

[eny]

A 'string' is not a buffer with an unlimited size that you can access directly.

Try something like this:

Code: Pascal  [Select][+][-]

1. //...
2.   FS.LoadFromFile('Mem.txt');
3.   Try
4.    SetLength(buf,FS.Size);
5.    FS.Read(Buf[1],FS.Size);
6.    Writeln(Buf);
7. //..

CJ: BTW: why didn't you use your favourite old-skool procs?  

Code: Pascal  [Select][+][-]

1.   AssignFile('mem.txt',T);  
2.   reset(T);  
3.   readln(T,buf);
4.   CloseFile(T);  

[captian jaster]

A 'string' is not a buffer with an unlimited size that you can access directly.

Try something like this:

Code: Pascal  [Select][+][-]

1. //...
2.   FS.LoadFromFile('Mem.txt');
3.   Try
4.    SetLength(buf,FS.Size);
5.    FS.Read(Buf[1],FS.Size);
6.    Writeln(Buf);
7. //..

CJ: BTW: why didn't you use your favourite old-skool procs?  

Code: Pascal  [Select][+][-]

1.   AssignFile('mem.txt',T);  
2.   reset(T);  
3.   readln(T,buf);
4.   CloseFile(T);  

Not my favorite. Just generally what I tell other people to start with.  It does read the string just not like I was hoping    .... How do I convert it back to a regular string?.. Also Favorite

[eny]

It does read the string just not like I was hoping 

Programming and hoping are a bad combination.

How do I convert it back to a regular string?

What do you consider a 'regular string'?

.. Also Favorite

The world's a big place 

[captian jaster]

It does read the string just not like I was hoping 

Programming and hoping are a bad combination.

How do I convert it back to a regular string?

What do you consider a 'regular string'?

.. Also Favorite

The world's a big place 

XD Ok Cool..
My Idea was I wrote Hello World into the filestream with one Program and saved it and now I'm reading it back... So... Yeah....