How can I convert this unmanaged C++ code to managed code in my C# app?

[roarkr]

How can I convert this unmanaged C++ code to managed code in my C# app?

static enum DATA_DEFINE_ID { DEFINITION3 };
hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION3, "Initial Position", "NULL", SIMCONNECT_DATATYPE_INITPOSITION, 0);
SIMCONNECT_DATA_INITPOSITION Init;
Init.Altitude = 5000.0;
Init.Latitude = 47.64210;
Init.Longitude = -122.13010;
Init.Pitch = -0.0;
Init.Bank = -1.0;
Init.Heading = 180.0;
Init.OnGround = 0;
Init.Airspeed = 0;

SimConnect_SetDataOnSimObject(hSimConnect, DEFINITION3, SIMCONNECT_OBJECT_ID_USER, 0, sizeof(Init), &Init);

 

[DragonflightDesign]

There's no way of directly translating C++ into C# as the two languages have no relationship to each other, apart from the letter C in the name and that awful pun of C# supposed to be standing for C++++. I recognise the code snippet as coming from the P3D SDK; the information you need to be able to create the C# equivalent is in the Managed Code SDK samples but not necessarily all in one place. I'd start by looking at the fairly simple Managed Data Request and then moving on to the Managed Facility Request.

 

[roarkr]

Thanks for your replay.

I have a large C# app using a lot of managed simconnect codes. It is working fine, but I have so far not been able to find out how to use the
SIMCONNECT_DATA_INITPOSITION structure when using simconnect.SetDataOnSimObject

It is how to use the special SIMCONNECT_DATA_INITPOSITION structure that gives me a headache

with my own Struct.Poi(s4) structure, I use the following and it works just fine

simconnect.AddToDataDefinition(DEFINITIONS.Struct_Poi, "Plane Latitude", "degrees", SIMCONNECT_DATATYPE.FLOAT64, 0.0f, SimConnect.SIMCONNECT_UNUSED);

simconnect.SetDataOnSimObject(DEFINITIONS.Struct_Poi, 0, SIMCONNECT_DATA_SET_FLAG.DEFAULT, s4);

 

[DragonflightDesign]

You could approach it another way - if your Struct_Poi is placing your aircraft at the expected latitude, then build your own aircraft initialisation structure by adding the required lon/alt/airspeed/etc. to your existing test. You don't have to use the SIMCONNECT_DATA_INITPOSITION call and defining your own will also give you more flexibility over what you require.