I'm developing an automation plug-in to Photoshop. It take long time to do the work, I therefore want to start a none modal dialog with a progress bar and a cancel button. I did not find any example of this in the SDK. Is it possible to use any of the functions in the PIProgressSuite.h for this kind of dialog?
When the the Progress Suite is acquired from an automation plug-in, only a subset of its routines are available. For instance, TestAbortProc is available, but UpdateProgress is not. I haven't tried the Progress_* routines, so I don't know whether they're available or not. The documentation on the topic is scarce, and there are no relevant examples in the SDK. After searching around for a while, I decided it would be quicker to implement my own (OS-specific) progress bar.
I don't think you will have much luck with the progress suite. It is used for one operation that your plug-in would control. You are probably using multiple Photoshop events and want to sum them up in a progress bar. Ideally you would want a double progress bar, one for the overall progress and one for the step progress. Unfortunately, the progress suite will get reset with each process that Photoshop tries to show progress for. Your best bet is to just use an OS progress bar in your dialog. Figuring out the progress will be dificult.
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