I have the basics of my application working. I need to figure out
if I have endian issues on an Intel machine need to be addressed
(see other thread). However my other concern right now is making
the application more user friendly.
On thing I want to do is something I have seen in iMovie. I want to
display a blue screen when there is no camera connection. And then
when a camera is plugged in, start showing a preview from the
camera. Are there any samples that show how to do this? I can loop
on SGNewChannel and wait for it to return noErr. But is there a
better way? Any samples? And if the camera is disconnected, how can
How about just painting your view's background blue whenever you call
Also, what about multiple camera's connected? E.g. an iSight and a
DV camera, or two DV cameras. Is there a way to find out about this
and then present the user with a menu so they can select which
camera to use?
The answer to your question is -- read up on SGGetChannelDeviceList
(). This call gives you a good deal of info about devices attached
to the system, and whether they are currently disconnected. Googling
this function call should yield some good sample code.
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