no return value subsystem

I am working on a project where I want to measure the distance of car with a hybrid light barrier. But therefor I need the get function in the subsystem to return values but that doesn't work.

Code:

int DistanceCalibrate() {
    int statikardan, passedway, times, timenow;

    //time(&times);
    //time(&timenow);
    times = TaskGetTickCount();
    timenow = 0;
    passedway = 0;

    while ((timenow - times) < 20000) {
        statikardan = AnalogIn_GetValue(2);
        if (statikardan < 400) {
            passedway++;
        }
        timenow = TaskGetTickCount();
        AppLed_SetState(0, 1);
        Sleep(10);
    }
    AppLed_SetState(0, 0);
    return passedway;
}

static char* RmzOsc_Name = "rmz";
static char * RmzOsc_PropertyNames[] = { "drive", "angle", "measure", 0 }; // must have a trailing 0

int RmzOsc_PropertySet(int property, char* message, int value);
int RmzOsc_PropertyGet(int property);

// Returns the name of the subsystem
const char* RmzOsc_GetName() {
    return RmzOsc_Name;
}

// Now getting a message.  This is actually a part message, with the first
// part (the subsystem) already parsed off.
int RmzOsc_ReceiveMessage(int channel, char* message, int length) {
    int status = Osc_GeneralReceiverHelper(channel, message, length,
            RmzOsc_Name, RmzOsc_PropertySet, RmzOsc_PropertyGet,
            RmzOsc_PropertyNames);

    if (status != CONTROLLER_OK)
        return Osc_SendError(channel, RmzOsc_Name, status);
    return CONTROLLER_OK;
}

int RmzOsc_PropertyGet(int property) {
    int value = 0;
    switch (property) {
    case 0:
        value = DistanceCalibrate();
        break;
    case 1:
        value = 20;
    }
    return value;
}

If I type the porperty name in mchelper i tested that the function DistanceCalibrate() gets called but i don't get any message back to mchelper, I hope that someone can help me.

ng