FSX SimConnect_CallDispatch in managed code

[KWB]

I wonder whether there is no equivalent of SimConnect_CallDispatch in the managed code library. Do I just miss it, is it not required, or what would I do if the equivalent C++ code shows such a call?

 

[caKus]

Hi,

CallDispatch is not used with managed code : see the SDK doc on managed code programming and also the samples :

// Simconnect client will send a win32 message when there is
// a packet to process. ReceiveMessage must be called to
// trigger the events. This model keeps simconnect processing on the main thread.

protected override void DefWndProc(ref Message m)
{
if (m.Msg == WM_USER_SIMCONNECT)
{
if (simconnect != null)
{
simconnect.ReceiveMessage();
}
}
else
{
base.DefWndProc(ref m);
}
}

 

[KWB]

Thanks for helping me on this, and sorry if I have missed some obvious documentation. Actually to what documentation you are referring to? I am using this one here, anything better / more detailed?

What I have basically done is to "translate" the "Menu Items" example to C#. Eventually I have used simconnect.ReceiveDispatch(this.DispatchProc); in order to replace SimConnect_CallDispatch(hSimConnect, MyDispatchProcMI, NULL); from the C++ example.

BTW, is overriding DefWndProc working if the client with SimConnect is running on a remote computer?

 

[caKus]

For the documentation, I use the fsxsdk.chm file that is contained in the SDK folder. But I guess it is the same contain that is in your link.

Rather thant trying to translate a C++ program into c#, I would suggest that you start from one of the managed C# code samples of the SDK and add the API that you need if they are not present in the sample.

Roughly, the process is the following :

- do the DefWndProc overide. If you are not in a Windows Form program, a simple loop with ReceiveMessage is ok. for instance :
while (!_isEnded)
{
_simConnect.ReceiveMessage();
Thread.Sleep(1);
}

- During the initialization phase, register handlers for the appropriate events. For instance :

simconnect.OnRecvException += new SimConnect.RecvExceptionEventHandler(simconnect_OnRecvException);

- Program the processing of each events : Example :
void simconnect_OnRecvException(SimConnect sender, SIMCONNECT_RECV_EXCEPTION data)
{
displayText("Exception received: " + data.dwException);
}

In conclusion, the structure of the program is very similar to a windows form program in C#.

SimConnect client can be used on a remote computer (but setting the parameters may be a little tricky).

Best regards.

Patrick.

 

[KWB]

Yep, it is working correctly on a remote computer, thanks for pointing me in the right direction!