Help for a simple problem I think?

[pizzaboy150]

Can anyone take a look at the code below, I cannot firgure out for the life of me why I am getting random values?

#include <windows.h>
#include <tchar.h>
#include <stdio.h>
#include <strsafe.h>
#include "SimConnect.h"

HANDLE hSimConnect = NULL;
int quit = 0;

static enum CONTROLS_DATA_ID {
    DEFINITION_CONTROLS
};

static enum CONTROLS_REQUEST_ID {
    REQUEST_CONTROLS
};

struct controls
{
    double ypos;
    double xpos;
};

//callback procedure
void CALLBACK MyDispatchProc(SIMCONNECT_RECV* pData, DWORD cbData, void *pContext)
{
    HRESULT hr;
    //check events
    switch (pData->dwID)
    {
        case SIMCONNECT_RECV_ID_SIMOBJECT_DATA:
        {
            SIMCONNECT_RECV_SIMOBJECT_DATA *pObjData = (SIMCONNECT_RECV_SIMOBJECT_DATA*)pData;
            switch (pObjData->dwRequestID)
            {
                case REQUEST_CONTROLS:
                {
                    controls *pS = (controls*)&pObjData->dwData;
                    system("CLS");
                    printf("x value: %d\n", pS->xpos);
                    printf("y value: %d\n", pS->ypos);
                    break;
                }
                default:
                    break;
            }
            break;
        }
    }
}

int __cdecl _tmain(int argc, _TCHAR* argv[])
{
    //create connection to FSX and error check
    HRESULT hr = SimConnect_Open(&hSimConnect,"Steve's Autopilot",NULL,0,0,0);
    if (hr == S_OK)
    {
        printf("Connected to FSX!\n");
    }
    else
    {
        printf("Failed to connect to FSX!\n");
        return 1;
    }

    hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_CONTROLS, "YOKE Y POSITION", "percent");
    hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_CONTROLS, "YOKE X POSITION", "percent");

    //request data from throttle position
    hr = SimConnect_RequestDataOnSimObject(hSimConnect,
        REQUEST_CONTROLS,
        DEFINITION_CONTROLS, 
        SIMCONNECT_OBJECT_ID_USER,
        SIMCONNECT_PERIOD_VISUAL_FRAME);
    if (hr != S_OK)
    {
        printf("Could not receive aircraft data!\n");
    }

    //loop until quit message
    while (quit == 0)
    {
        SimConnect_CallDispatch(hSimConnect, MyDispatchProc, NULL);
        Sleep(1);
    }

    //close connection to FSX
    hr = SimConnect_Close(hSimConnect);   
    return 0;
}

 

[pizzaboy150]

Sorry chaps but solved it...

I thought from reading the sdk that all values were as doubles or char[] arrays but no!

how I fixed it was...

printf("y value: %d\n", (int)floor(pS->ypos));

for some reason I had to cast it to an int to get the values that I wanted between -100<0>100

still not sure why I have had to do this but at least its working!

 

[pizzaboy150]

what a plonker!

printf("x value: %f\n", pS->xpos);

outputting it wrong!

Sorry to waste a thread!

 

[ollyau]

Not a waste! Always good for future reference in case someone else makes the same mistake.