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Scanning over files, directories and sub-directories

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Jishaxe:
I have a rather novice question, but I can't really find any good tutorials on Google to work it out.
I would like to iliterate over files, directories and the directories' sub-directories. So basicly a full system scan.
I attempted this, but failed. (Not giving an exception for some reason)

--- Code: ---procedure scanfiles(filename,direct: String)
begin
    SetCurrentDir(direct);
    if FindFirst(filename,faDirectory,rec) = 0 then
    begin
    repeat
    scanfiles(filename,rec.Name);
    until FindNext(rec) <> 0;
    end;
    if FindFirst(filename,faAnyFile,rec) = 0 then
    begin
    repeat
    Form1.Memo1.Lines.Add('Found file: '+CRLF+rec.Name);
    until FindNext(rec) <>0;
    end;
end;

--- End code ---
Can anyone help me, please?

JuhaManninen:
First param to FindFirst is a path, not filename. SetCurrentDir has no effect for it.

This is one function I have made (originally for Delphi). Maybe there are similar ones in LCL libs, don't know. It shows the idea anyway.


--- Code: ---type
  // Must return True on success.
  FindFileCallBack = function(FileName: string): Boolean;

...

function FindFile(Dir: string; Func: FindFileCallBack): Boolean;
// Finds every file in a given directory and its sub-directories recursively
//    and calls Func using the file name as parameter.
// Parameters : Dir -- Directory with the files to find.
// Returns True on success.
var
  F: TSearchRec;
begin
  Result := True;
  Dir := AppendPathDelim(Dir);
  try
    if FindFirst(Dir + '*.*', faAnyFile, F) = 0 then
    repeat
      if (F.Attr and faDirectory > 0) then        // Directories
      begin
        if (F.Name<>'.') and (F.Name<>'..') then  // Not '.' and '..'
          Result := FindFile(Dir + F.Name, Func); // Recursive call.
      end
      else                                        // Single file
        Result := Func(Dir + F.Name);
      if not Result then
        Exit;
    until FindNext(F) <> 0;
  finally
    SysUtils.FindClose(F);
  end;
end;

--- End code ---

If you also want to filter the files with a wildcard mask, do something like this:

--- Code: ---  if FindFirst(Dir + Mask, faAnyFile, F) = 0 then

--- End code ---

Juha

Jishaxe:
Thank you for your help :)

theo:
There's also TFileSearcher:
http://lazarus-ccr.sourceforge.net/docs/lcl/fileutil/tfilesearcher.html

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