DataUpdate: Recalculates the route

Variables
const UINT	RI_MESSAGE_DATAUPDATE = RegisterWindowMessage(TEXT("RI_MESSAGE_DATAUPDATE"))

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Variable Documentation

const UINT RI_MESSAGE_DATAUPDATE = RegisterWindowMessage(TEXT("RI_MESSAGE_DATAUPDATE"))

Message ID for the Request "DataUpdate":
RI_MESSAGE_DATAUPDATE

Write Memory:

This function has no writer.

Read Memory:

This function has no reader.

Return Values for DataUpdate:

RI_NOERROR = Route recalculation succeeded
RI_NOTRUN = Route recalculation does not succeed because the route calculation is running

Description:

Recalculates the route if application is in navigation mode.

Example:

#define USE_LOADLIBRARY
#include "TNSRemoteInterfaceDll.h"

LPARAM GetUniqueID()
{
    //generate unique ID
    static LPARAM id = 0;
    if (++id == 0) ++id; // do not use 0 !!!!!
    return id;
}

inline LRESULT RI_MESSAGE( const UINT request, HWND h_client, LPARAM id )
{
    //check if RI handle is valid
    if ( !IsWindow( RI_GetTNS() ) ) 
        return RI_NAVIGATIONNOTACTIVE;
    //send the request
    PostMessage( RI_GetTNS(), request, WPARAM(h_client), id );
    return RI_NOERROR;
}

LRESULT CDlgMFC_DataUpdate::WindowProc ( UINT  message , WPARAM  wParam , LPARAM  lParam )
{
    //check messages for answer from RI
    if ( message == RI_MESSAGE_DATAUPDATE )
    {
        if ( (LRESULT)wParam == RI_NOERROR )
            //Route recalculation succeeded. errorcode (0)
        else if ( (LRESULT)wParam == RI_NOTRUN )
        {
            //Route recalculation didn't succeed, because the route calculation is running. errorcode (17)
            //please try again...
            LPARAM id = GetUniqueID();
            RI_MESSAGE( RI_MESSAGE_DATAUPDATE, GetSafeHwnd(), id );
        }
        else if ( (LRESULT)wParam == RI_NAVIGATIONNOTACTIVE )
            //Navigator is not running or the configuration is not complete. errorcode(3)
    }
    return CDialog::WindowProc( message, wParam, lParam );
}

void CDlgMFC_DataUpdate::foo()
{
    LPARAM id = GetUniqueID();
    if ( RI_MESSAGE( RI_MESSAGE_DATAUPDATE, GetSafeHwnd(), id ) == RI_NOERROR )
        //message sending succeeded
    else
        //navigation software not running
}