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Article #16774: How can I determine the names of the installed comm ports?

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FAQ1774D.txt   How can I determine the names of the installed comm ports?
Category   :Windows API
Platform    :All
Product    :All 32 bit  

Question:
How can I determine the names of the installed comm ports?


Answer:
The following example demonstrates enumerating the communications
ports that are installed and listed in the Win32 registry.

Example:

uses Registry;

procedure TForm1.Button1Click(Sender: TObject);
var
  reg : TRegistry;
  ts : TStrings;
  i : integer;
begin
  reg := TRegistry.Create;
  reg.RootKey := HKEY_LOCAL_MACHINE;
  reg.OpenKey('hardware\devicemap\serialcomm',
              false);
  ts := TStringList.Create;
  reg.GetValueNames(ts);
  for i := 0 to ts.Count -1 do begin
    Memo1.Lines.Add(reg.ReadString(ts.Strings[i]));
  end;
  ts.Free;
  reg.CloseKey;
  reg.free;
end;


7/16/98 4:31:28 PM
 

Last Modified: 01-SEP-99