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Re: how to change tuner channel

> Having a blast learning Apple/QuickTime after years of
Microsoft
> development, but need help. I have a TV tuner card in my
Windows 2000 PC. I
> can do video capture and save the file to disk
successfully. My problem is I
> don't know how to change the tuner channel (ie. change
from ABC on channel
> 12 to FOX on channel 11). Is this possible within
QuickTime for Java?

I assume that either:
1) the tuner card provides a QuickTime VDIG component for
capturing (low probability I think)
2) you use a generic VDIG like Abstract Plane's VDIG or
WinVDIG that wraps the DirectShow capturing services in a
QuickTime VDIG

If it's (1), when initializing the VDIG it might allow you
to give it some parameter for selecting the channel
If it's (2), contact the author of the VDIG and the company
that makes the tuner card and see if they can help

See if the tuner card has some API available to change
channel. If so you can call it from JNI code (Java native
interface). The JNI code can be written in C (the usual),
Delphi / Object Pascal and probably other languages that can
create DLLs too

If you author a Java applet, it has to be signed using a
security certificate (see VeriSign's site for info on how to
do that with Sun's JavaVM) to be able to call JNI native
code
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