Error: Identifier not found "odSelected"

[younoa]

procedure TForm1.ComboBox1DrawItem(Control: TWinControl; Index: Integer;
  ARect: TRect; State: TOwnerDrawState);
var
  a: Integer;
begin
  if (odSelected in State) then
    a := 1
  else
    a := 2;
end;   

Error: Identifier not found "odSelected"

I don't know why this is happening. I followed the reference, but it's like this. Windows 10 64bit. Lazarus 1.8.4 Help me.

[Handoko]

Hello younoa,
Welcome to the forum.

To solve Identifier not found "odSelected" issue, you have to add LCLType in the uses clause.

[younoa]

Ah.... thank you. Handoko.