But I've done this;(

procedure TDXApplication.PowerDrawInitDevice(Sender: TObject; var ExitCode: Integer);
begin
if Imgs<>nil then Imgs.LoadFromVTDb(FVTDB);
if fntDef<>nil then fntDef.LoadFromVTDb(FVTDB, FNT_DEF, PowerDraw.DefTextureFormat);
if fntHnt<>nil then fntHnt.LoadFromVTDb(FVTDB, FNT_HNT, PowerDraw.DefTextureFormat);
end;

procedure TDXApplication.PowerDrawDoneDevice(Sender: TObject);
begin
if Imgs<>nil then Imgs.Finalize;
if fntDef<>nil then fntDef.Finalize;
if fntHnt<>nil then fntHnt.Finalize;
end;