how do I detect what drive the cd rom is on?

[Mark Lea]

At the moment I am using the 'copy.vi' to copy a file from D:\ to C:\ with the intention of copying from a cd rom to the hard drive(windows platform)but the cd rom drive is not neccessarily on D:\. Is there a VI or other means of detecting which drive the cd rom is on at run time?

Thanks in advance
Mark Lea

[mikeporter]

One possibility would be to use the Volume Info function in LV and look for a drive with 0 bytes free--that will be your CD. See attached demo...

Mike...

PS: Non-existent drives return an error.

[Mark Lea]

Thanks Mike
To use this vi you have to make sure that the SIZE output >1 AND FREE = 0 because a lot of the other possible letters could be SIZE = 0 and FREE = 0 but with the cd rom sitting in the drive you should get a number >1. I compared all the letters using this format and it worked.

Thanks again

Mark Lea

[mikeporter]

The only drive letters that should return a size of zero are non-existent drives. In those cases, the output error cluster will also show an error. Always check for errors.

Mike...