Author: Christian Cristofori

Ever needed to check if a folder is empty or not? That's my way of doing. I think 
it's really fast, but not bench marked yet.

Answer:
1   uses
2     FileCtrl, SysUtils;
3   
4   function IsEmptyFolder(fld: string): boolean;
5   var
6     sr: tsearchrec;
7     r: integer;
8   begin
9     fld := IncludeTrailingBackSlash(fld);
10    result := false;
11    if (DirectoryExists(fld)) then
12    begin
13      result := true;
14      r := findfirst((fld + '*.*'), faAnyFile, sr);
15      while ((r = 0) and (result)) do
16      begin
17        // Revision 2:
18        // checks for system folders "." and ".." that always exists
19        // inside an empty folder.
20        if ((SR.Attr and faDirectory) <> 0) then
21        begin
22          if ((sr.name <> '.') and (sr.name <> '..')) then
23            result := false;
24        end
25        else
26          result := false;
27        r := findnext(sr);
28      end;
29      // Revision 1:
30      // this prevents compiler by using the API defined in windows unit,
31      // that will raise a compiler error like this:
32      // [Error]:Incompatible types: 'Cardinal' and 'TSearchRec'
33      sysutils.findclose(sr);
34    end;
35  end;