Multiple LabQuest Mini modules support

[Charles Xie]

Hi Scott:

Thanks to your tips, this now works beautifully! We can now use as many sensors as we want in our mixed reality apps.

Thanks,

Charles

[Charles Xie]

I think the easiest thing for me to do now is to commit only two minor additions to LabQuestLibrary.java and a new test. Since these changes are not substantial, I don't think we need to do a fork to get them into the main source. If I do end up having to do more, I will do it through a fork. But for now, a simple commit may be sufficient to make this capacity available.

What do you think, Scott?

Or you can just add the following two methods to LabQuestLibrary.java:

public String getDeviceName(int n) throws LabQuestException {

searchForDevices();

String ret  = getDeviceName(NGIOLibrary.DEVTYPE_LABQUEST_MINI, n);

if(ret != null) {

return ret;

}

return ret;

}

private String getDeviceName(int deviceType, int n) throws LabQuestException {

IntByReference listSig = new IntByReference();

IntByReference numDevices = new IntByReference();

int ret;

Pointer openDeviceListSnapshotHandle = 

ngio.openDeviceListSnapshot(hLibrary, deviceType, 

numDevices, listSig);

int num = numDevices.getValue();

if(num <= 0){

closeDeviceListSnapshot(openDeviceListSnapshotHandle);

return null;

}

byte [] devNameBuf = new byte[NGIOLibrary.MAX_SIZE_DEVICE_NAME];

IntByReference deviceStatusMask = new IntByReference();

ret = ngio.deviceListSnapshot_GetNthEntry(openDeviceListSnapshotHandle, n, 

devNameBuf, devNameBuf.length, deviceStatusMask);

if(ret != 0){

throw new LabQuestException();

}

closeDeviceListSnapshot(openDeviceListSnapshotHandle);

return Native.toString(devNameBuf);

}

[Scott Cytacki]

Developers using github will fork a repo for a single line change, so I think your changes are definitely worth a fork. 

It really isn't hard.

Go to this page:

https://help.github.com/articles/fork-a-repo

For your purposes I recommend creating a new local directory of your fork by following Steps 1 and 2

And push your changes into your fork.

Then send the sensor-projects a pull request:

https://help.github.com/articles/using-pull-requests

That page is a bit long, all you really need to do is click the "pull request" button.

In the future, I can show you how you can create a fork and push your changes to it without having to make a new local directory and copy changes into it.

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The Concord Consortium

http://concord.org