PMDG SDK simconnect problem - connect to 2 aircrafts

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I have a small home cockpit and I'm tryinng to write an app to connect my cockpit with Prepar3d (PMDG 737 and 777).

My code:

	enum CLIENT_DATA_777
            PMDG_777X_DATA_ID = 0x4E477831,
            PMDG_777X_CONTROL_ID	=0x4E477833,
            PMDG_777X_CONTROL_DEFINITION = 0x4E477834,

	enum CLIENT_DATA_737
            PMDG_NGX_DATA_ID = 0x4E477831,
            PMDG_NGX_CONTROL_ID	=0x4E477833,
            PMDG_NGX_CONTROL_DEFINITION = 0x4E477834,


simconnect_MapClientToDataName("PMDG_NGX_Data", CLIENT_DATA_737.PMDG_NGX_DATA_ID);
simconnect_MapClientToDataName("PMDG_NGX_Control", CLIENT_DATA_737.PMDG_NGX_CONTROL_ID);

simconnect_MapClientToDataName("PMDG_777X_Data", CLIENT_DATA_777.PMDG_NGX_DATA_ID);
simconnect_MapClientToDataName("PMDG_777X_Control", CLIENT_DATA_777.PMDG_NGX_CONTROL_ID);


The problem is an exception: DUPLICATE_ID. How to solve this? Do I have to close simconnect and open it again with settings for 737 only when 737 is loaded and the same with settings for 777 only when 777 is loaded?

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