Author: Tomas Rutkauskas 

How to show the buffer contents of the GetLogicalDriveStrings function in a TMemo

Answer:

1   procedure GetLogicalDrives(aList: TStrings);
2   var
3     buff: PChar;
4     size, i, j: DWORD;
5   begin
6     {first we get the number of bytes required}
7     j := GetLogicalDriveStrings(0, PChar(@j));
8     size := j;
9     Getmem(buff, size);
10    try
11      j := GetLogicalDriveStrings(size, buff);
12      for i := 0 to j - 1 do
13        if (buff[i] = #0) then
14          buff[i] := #13;
15      aList.text := buff;
16    finally
17      Freemem(buff, size);
18    end;
19  end;