I'm wondering how I can go about adding user-space HID driver code to an existing Mac application? Since you can technically get away with writing an entire user space driver in one file would I just add that individual file (or preferably several classes) to the existing projects file tree?
Eventually this app will need to have the ability to access serial devices as well which would require a kext. Would I be able to add that directly in as well? That is of less importance at the moment though.
Thanks for any advice!
Related
Dears,
I want to capture voice of users using IVR built on Orchestration Designer and store it in file system as wav files. As far as I know, there is a way to do that by using Speech Servers such as Nuance,but, since it is expensive we want to find an alternative way. I have been searching internet for week, but could not find anything related. Is there a way to capture voice using java or voiceXML? Is it even possible without using speech servers?
you could use recoding node to record the voice. '.wav' would be saved in data/temp in your application but it would be deleted once your session is over. You need to write customize java code to copy and paste from temp to your local dir before the session gets invalidated.
Is there any simple way to do this?
I basically want iTunes to not open if an external hard drive is not connected. This is essentially a user issue - as despite asking multiple times, my girlfriend will forget and open an audio or video file without the external HDD connected (where the iTunes library is kept) and so the usual rigamarole occurs... the media file will then try and add itself to the iTunes library, which can't be found, so it'll default back to it's position on the internal hard disk, and then when I come to use it, it'll try and consolidate it for me (which is nice), except it then decides it needs to organise it - and this takes about 6 hours due to the amount of music I have on there.
I've tried changing the internal (default) iTunes music folder path to an alias to the external one, but that starts throwing out some beastly errors once you get into the loop (when the alias is essentially a pointer to an invalid location).
Is Automator something that could be used? Sorry I'm not very pro with OS X I'm afraid.
Thanks,
Duncan
It seems a straightforward way to do this is just to move the iTunes.app onto the external hard drive, and replace iTunes.app in the Applications folder with an alias pointing to iTunes on the external HDD (called iTunes).
As iTunes is system protected, you'll need to change the permissions of iTunes.app to move it, which you can do via gui or terminal (sudo chmod...)
Simples.
I am developing a Win8 Store app which allows users to download different types of files from an online learning platform and store them locally. I am also considering the function to help users organize these downloaded files by placing them in different folders (based on course name and etc.).
I was using Documents Library previously. But for every type of file that the user could download, I need to add a file type association, which does not make a lot of sense since my app would be able to open such files. So which local storage should my app use?
Many thanks in advance.
Kaizhi
The access to storage by Windows Store apps is quite restrictive, especially the DocumentsLibrary.
As you have noticed, you need to declare a file type association for every file type you want to read from or write to the DocumentsLibrary. This means your app need to handle file activations for these types in a meaningful way, which your app probably should not do.
But even if you jump through this hoop, there is another one that is not documented on the MSDN page of the DocumentsLibrary, but "hidden" in a lengthy page about app capability declarations: According to the current rules, you are not allowed to use the DocumentsLibrary for anything but offline access to SkyDrive! Bummer...
So what's left?
You can use SkyDrive or another cloud storage to put files in a well known place (which might or might not be somewhere on the hard disk). This is probably both overkill and undesirable in your case.
Or you save the files in the local app storage, provide your own in-app file browser and open the files with their default app. Seems viable to me.
Or, maybe, you can do something with share contracts or other contracts. I don't know much about these yet, but I doubt that they are helpful in your situation.
And that's it...
(Based on my current experience. No guaranty for correctness or completeness)
If I write a license file to isolated storage in a vb.net winforms app, and the app then undergoes a minor update, does the license file get "carried over" somehow during the update?
Isolated storage seems to use the full version number as the lowest level directory name which makes me think it doesn't.
The license file is needed to allow full use of the app and I don't want users to have to re-enter their license code after an update.
Not sure how the update will be done yet - either Inno setup or Installshield LE.
Any advice appreciated.
If your app is a WinForm one, I advice you not to use IsolatedStorage, which is a little too restrictive and uncustomizable. The IsolatedStorage isn't overriden in Windows Phone and Metro apps but (if I remember well) is in Win Forms. To conclude, it would be better to use a file in another location (like AppData/Roaming/YourCoolAppName), and it has the advantage for you to know exactly where the data is stored.
It would be useful for many people to know how to completely remove an application from your device when testing.
I have downloaded my app many times now, and likewise have deleted it many times. The problem is when deleting the app, it does not remove things like the persistent object related to my app, or the images downloaded through the app. So, when I download the next build, I have no idea if something broke that is related to building the persistent object or fetching the images since those elements already exist from the last build.
I don't know if this is a cache thing. I don't know if this is expected and I have to use some utility to wipe this data after deleting the app. I can't really find much info through basic web searches.
Any information would be appreciated.
Blackberry Bold 9000. 4.6 OS. tested with both SD card and no SD card.
Objects stored in the PersistentStore are automatically deleted on uninstall if their interfaces were defined in your project. If they are from the standard BlackBerry API then they will stick around until they're deleted. E.G if you save a String in the PersistentStore it will stay in the PersistentStore but if you save a class you created it will be deleted on an uninstall. So if you want to have those objects be deleted automatically just create a wrapper class and save that.
Images stored on the filesystem will not be deleted until you or some application deletes them. However, it should be easy for you to write an app that clears everything out.
Another solution you could implement is making your app somewhat self-aware of its data.
Create a simple String value that you persist (or optionally, persist it in a Hashtable so you can store many properties this way) that includes "Version".
At startup of the GUI app, compare the stored "Version" against the application's current version. If the stored version doesn't exist, or if it exists and matches, take no action.
If it exists and does not match, automatically clean up old persisted data; or alternatively prompt the user to see if they want that data to be deleted (which one is better will depend on your implementation)
You can also use CodeModuleListener to listen for an uninstall event -- when that happens, you can clean up at that time as well or instead.
(As an aside and a bit of shameless self promotion, I am actually currently working on a shareable library for Blackberry that makes managing persistence much easier, as well as desktop data backup/restore. I'm doing this as part of the BBSSH project, but I'll be splitting it off into a separate library of core components and publishing it under a dual GPL/optional commercial license. It will contain hooks for data cleanup and data versioning. )