unit uMP;

interface

uses
  Windows, SysUtils, Classes, MapPoint_TLB, Registry, Math;

type
  TOnError = procedure(Sender: TObject; E: Exception) of object;

  TMapPoint = class
  private
    FMP: _Application;
    FOnError: TOnError;
  public
    constructor Create(ErrorProc: TOnError);
    destructor Destroy; override;
  end;

implementation

{ TMapPoint }

constructor TMapPoint.Create(ErrorProc: TOnError);
var
   Reg: TRegistry;
   FileName: string;
begin
   inherited Create;
   FOnError := ErrorProc;
   try
      FMP := CoApplication.Create;
      Reg := TRegistry.Create;
      try
         Reg.RootKey := HKEY_CLASSES_ROOT;
         if not Reg.OpenKey('.ptm\MapPoint.Map.EU.11\ShellNew', False) then
            if not Reg.OpenKey('.ptm\MapPoint.Map.EU.9\ShellNew', False) then
               Exit;
         FileName := Reg.ReadString('FileName');
         FMP.OpenMap(FileName, False);
      finally
         Reg.Free;
      end;
   except
      on E: Exception do
         if Assigned(FOnError) then
            FOnError(Self, E);
   end;
end;

destructor TMapPoint.Destroy;
begin
   FMP.ActiveMap.Saved := True;
   FMP.Quit;
   inherited;
end;