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WAX

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Join Date:2013/5/13

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Posted at 2013-05-15 18:10:49
[ Application for Bluetooth API BTFUNC.DLL ]

How are you,

Now i am planning to develop a test program with labview for our blueotooth speaker.

The test method is to link a DUT to PC via USB 4.0 bluetooth dongle,  test DUT audio performance, and the dongle driver is copyrigted by IVT.

This test program need to use bluetooth API btfunc.dll file located under  system32 folder , the test process is BT_InitializeLibrary, BT_RegisterCallback and BT_InquireDevices..... on invoking BT_RegisterCallback function two parameter is required,  ucEvent and pfnCBKFUN. the former,now i choose EVENT_INQUIRY_DEVICE_REPORT, and for the latter the API documents is to explain  EVENT_INQUIRY_DEVICE_REPORT: typedef void (*PCALLBACK_INQUIRY_DEVICE) (PBLUETOOTH_DEVICE_INFO pDevInfo);

Now i am blocked by the latter due not to kown how to set the parameter pfnCBKFUN,and how to set this agurment value for the function invoked by LabVIEW.

Pls help me!

BestRegards!

wangxiao

 

 

Lee

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Join Date:2014/2/21

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Posted at 2014-03-11 20:22:16

The pfnCBKFUN is the callback function address, and the callback function must be written by yourself in your application. typedef void (*PCALLBACK_INQUIRY_DEVICE) (PBLUETOOTH_DEVICE_INFO pDevInfo) indicates that your callback function should be defined like:

void myCbkFunction(PBLUETOOTH_DEVICE_INFO pDevInfo). After you finish the function, register like this:

BT_RegisterCallback(EVENT_INQUIRY_DEVICE_REPORT, myCbkFunction)


After you register the callback function, you can just call this callback function with pDevInfo as input parameter.It's a pointer to BLUETOOTH_DEVICE_INFO or the address of a BLUETOOTH_DEVICE_INFO Variable:

    BLUETOOTH_DEVICE_INFO devInfo = {0};
    devInfo.dwSize = sizeof(BLUETOOTH_DEVICE_INFO);
    ((PCALLBACK_INQUIRY_DEVICE)pCbk)(&devInfo);

MelvinRoyce

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Posted at 2019-04-01 19:44:23

I have a Bluetooth apparatus I have to use with LabVIEW. How would I make it work in LabVIEW, and does it have to utilize the windows Bluetooth stack?

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Posted at 2019-11-03 01:48:49

I would suggest working on something different like machine learning because such products are already available in the market. However it is a good practice if you are working on university final project.

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