Getting started with TMS FNC Directions

Prerequisites

• TMS FNC Core installed and the runtime package added to the project.
• TMS FNC Maps installed and the runtime package added to the project.
• An API key for the directions service backend you intend to use.

Add the component

1. Drop TTMSFNCDirections from the TMS FNC Maps palette page onto a form.
2. Set the APIKey property.
3. Set the Service property to the desired routing backend.

Request directions

Request directionsPascalC++

{ Inside a button click handler: }
var
  Origin, Destination: TTMSFNCMapsCoordinateRec;
begin
  Origin.Latitude := 51.5074;
  Origin.Longitude := -0.1278;
  Destination.Latitude := 48.8566;
  Destination.Longitude := 2.3522;
  TMSFNCDirections1.GetDirections(Origin, Destination);
end;

// Inside a button click handler:
void __fastcall TForm1::Button1Click(TObject *Sender)
{
  TTMSFNCMapsCoordinateRec Origin, Destination;
  Origin.Latitude = 51.5074;
  Origin.Longitude = -0.1278;
  Destination.Latitude = 48.8566;
  Destination.Longitude = 2.3522;
  TMSFNCDirections1->GetDirections(Origin, Destination);
}

Handle the result

Handle the resultPascalC++

procedure TForm1.TMSFNCDirections1GetDirections(
  Sender: TObject; ARequestIndex: Integer;
  ARequest: TTMSFNCDirectionsRequest;
  ADirections: TTMSFNCDirectionsItems);
begin
  { ADirections contains route items with legs and steps }
end;

// Pascal sample declares ARequestIndex/ADirections parameters; the real OnGetDirections event is used here.
void __fastcall TForm1::TMSFNCDirections1GetDirections(TObject *Sender,
  TTMSFNCDirectionsRequest * const ARequest,
  TTMSFNCCloudBaseRequestResult * const ARequestResult)
{
  // ARequest->Items contains route items with legs and steps
}

Next steps

• Guides — multi-stop routes, travel mode, and result handling.
• API reference — full class reference.