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【求助】关于GATT_Notification函数和ATT_HANDLE_VALUE_NOTI消息

关于GATT_Notification函数,是不是会发一个notify消息给client端,

我看HIDAdvRemoteDongle例子程序,在<hidappProcessGATTMsg>函数中,会处理[ATT_HANDLE_VALUE_NOTI]这个消息,

<问题1>是否就是GATT_Notification发出来的?

<问题2>GATT_Notification函数3个参数的第一个参数connHandle,填0的时候,是否Dongle依然能够收到这个消息?

Parameters:

connHandle  - connection to use
pNoti  - pointer to notification to be sent
authenticated  - whether an authenticated link is required

<问题3>GATT_Notification函数3个参数的第一个参数connHandle,填0的时候,对应安卓手机程序,是否能够收到这个消息,用什么API函数怎么收呢?