The new API calls are provided to assist you with features in your application. However, they are _not_ going to be present in the first release of QuickDraw GX from Apple. Apple and Adobe are working together on a QuickDraw GX mechanism to bring these features to applications using the current printing API under QuickDraw GX, but no further information is available at this time.
This means that while you're welcome to use any of these new calls, you _may not require_ them. It's a bad idea to implement a feature that can't work without one of these calls because sometimes they simply won't be present.
For example, if you're exporting a file and you want to include an image in EPS format,
you can use the new API services to create an EPS stream from a PICT handle. However, if the new calls are _not_ present, you have to be able to export the file anyway.
The new API calls can add additional functionality, but they should never cause a feature of your application to fail if they're not present. If your program still operates properly under LaserWriter 7.x (except maybe for some bugs fixed in 8.0), you're safe.
