P3D v4 Simconnect returning incorrect data in WPF c# application.

[sniperfull]

when using same code from the managed data request sample from the SDK i do not receive the same results.

            simconnect.AddToDataDefinition(DEFINITIONS.Struct1, "Plane Altitude", "feet", SIMCONNECT_DATATYPE.FLOAT64, 0, SimConnect.SIMCONNECT_UNUSED);

            // IMPORTANT: register it with the simconnect managed wrapper marshaller
            // if you skip this step, you will only receive a uint in the .dwData field.
            simconnect.RegisterDataDefineStruct<Struct1>(DEFINITIONS.Struct1);

            // catch a simobject data request
            simconnect.OnRecvSimobjectDataBytype += new SimConnect.RecvSimobjectDataBytypeEventHandler(simconnect_OnRecvSimobjectDataBytype);

Only thing that is different from the original SDK sample is WndProc this is my WndProc:

  private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
        {
            // report that Win32 event is not handled.
            handled = false;

            switch (msg)
            {
                case WM_USER_SIMCONNECT:
                    {
                        if (simconnect != null)
                        {
                            simconnect.ReceiveMessage();
                            handled = true;
                        }
                    }
                    break;

                default:
                    break;
            }
            return (IntPtr)0;
        }

problem is i receive wayy off results, such as : 7.835953401658903E-67 when it should be around 400 feet.
im lost i do not know what i could do about this, anyone that knows anything about such thing please let me know.

 

[ronh]

Did you see this in the SDK? in the Managed SimConnect Projects section.


simconnect.RegisterDataDefineStruct<Struct1>((uint)DEFINITIONS.Struct1);

Not at my computer to check if it makes a difference.

HTH

 

[sniperfull]

Did you see this in the SDK? in the Managed SimConnect Projects section.


simconnect.RegisterDataDefineStruct<Struct1>((uint)DEFINITIONS.Struct1);

Not at my computer to check if it makes a difference.

HTH

Cant actually do that, i've seen that part of the documentation but i cant use a uint becuase :
http://prntscr.com/jlq86b
cant convert uint to enum...

 

[WarpD]

I think you mangled things by wanting to use WPF since I have seen nothing from L-M regarding using that type of C# app. Since SimConnect is not likely to have actually returned incorrect data, the error is most likely in your code. Every time I have seen an error like what you're reporting it has been a data size issue. Somewhere in your code a data size is defined incorrectly. The hard part will be figuring out where.