msfs::sys

Function SimConnect_AddToClientDataDefinition

Source 
pub unsafe extern "C" fn SimConnect_AddToClientDataDefinition(
    hSimConnect: HANDLE,
    DefineID: SIMCONNECT_CLIENT_DATA_DEFINITION_ID,
    dwOffset: DWORD,
    dwSizeOrType: DWORD,
    fEpsilon: f32,
    DatumID: DWORD,
) -> HRESULT