Mega Code Archive
Get names of available comm ports
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Title: get names of available comm ports?
{
Show the names of available comm ports (com1, com2, ...)
Used registry key: hkey_local_machine\hardware\devicemap\serialcomm
}
uses
Registry;
procedure TForm1.Button1Click(Sender: TObject);
var
reg: TRegistry;
st: Tstrings;
i: Integer;
begin
reg := TRegistry.Create;
try
reg.RootKey := HKEY_LOCAL_MACHINE;
reg.OpenKey('hardware\devicemap\serialcomm', False);
st := TstringList.Create;
try
reg.GetValueNames(st);
for i := 0 to st.Count - 1 do
Memo1.Lines.Add(reg.Readstring(st.strings[i]));
finally
st.Free;
end;
reg.CloseKey;
finally
reg.Free;
end;
end;
]]>