paramstr() can't handle long filenames?

when using the paramstr() option for opening a file, it cannot handle long filenames. For example in explorer from windows and you doubleclick on a file then it starts the program but cannot load any file with a space.
and so refuses it to load in the edit field, I use richedit, and when I click a file it loads in the richedit field fine, but when the file contains a space it refuses to do so.
putting the file in brackets helps "this is a testfile.txt" from a commandline but this is not possible in explorer so what code does open and display long filenames correct?

The Code I use is as follows:

if ExtractFileName(ParamStr(1)) <> '' then
   begin
     OpenCode(ParamStr(1));


and Opencode relates to the Procedure Opencode...
What needs to be changed here.
hellfire052497Asked:
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sleachCommented:
The problem is that ParamStr() sees the space character as a devider between multipul parameters.  If you only have a single parameter that is a filename, the solution is to fuse all the peices together.  See example below.

{'parameters' will hold the whole parameter string and will
  include any spaces}
parameters := '';
for x := 1 to paramCount do
  parameters := parameters + paramStr(x)+' ';


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hellfire052497Author Commented:
Edited text of question
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hellfire052497Author Commented:
I updated my question, I included the code I use for opening.
Please give clear explanation of what needs to be changed in my codelines, I am pretty new to Delphi so explain a bit better.
Thanks

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sleachCommented:
Here is the WHOLE FormCreate event as it should be in your code.  Just copy and paste it in.:

procedure TForm1.FormCreate(Sender: TObject);
var
parameters:  string;
x:  integer;
begin
{Extract Parameters from ParamString.  Will include spaces.}
parameters := '';
for x := 1 to paramCount do
  begin
  parameters := parameters + paramStr(x);
  if x < paramCount then parameters := parameters +' ';{dont add a space to the last parameter}
  end;

{Process Parameters}
in Parameters <> '' then OpenCode(Parameters);
end;
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