How can you determine if you have a writeable CD

[CEY]

How can you programmatically determine if you have a writeable CD in LabVIEW 7.0.

[JLS]

Hello,

That question boils down to "How do you programmatically determine if a CD is writeable?"  This is not going to be a LabVIEW specific (or any other programming language for that matter I think) task.  You will likely be looking for a windows dll call which returns that information for a given drive (in which case you would use the Call Library Function Node in LabVIEW) or a registry key which holds that information (in which case you can use the registry VIs).

I hope this helps!

Best Regards,

JLS

[Khalid]

I am not sure but I don't think even Windows (assuming you're on Windows) knows if the CD you just inserted is writable or not UNTIL you attempt to write something to it.  So, one crude method would be to attempt a write. 

Regards,

-Khalid

[chrisger]

hi there

try this: choose any file on the CD, open it with the "Open file" function, set the "Open mode" to "Write only". if you get an error code, the file is write protected (don't know if this works with files on CDs, but i'm quite sure). you don't have to actually write any bytes to the file.