Selector Table

This table summarizes the various selector commands a video filter can receive.

Selector	Optional?	Description
fsInitSpec	Yes	Allocate and initialize your parameters with default values without popping a modal setup dialog.
fsHasSetupDialog	Yes	New for Premiere Pro CS3. Specify whether or not the filter has a setup dialog.
fsSetup	Yes	Allocate memory for your parameters if necessary. Display your modal setup dialog with default parameter values or previously stored values. Save the new values to specsHandle.
fsExecute	No	Filter the video using the stored parameters from specsHandle. Be aware of interlaced video, and don’t overlook the alpha channel!
fsDisposeData	Yes	Dispose of any instance data created during fsExecute.
fsCanHandlePAR	Yes	Tell Premiere how your effect handles pixel aspect ratio.
fsGetPixelFormatsSupported	Yes	Gets pixel formats supported. Called iteratively until all formats have been given.
fsCacheOnLoad	Yes	Return fsDoNotCacheOnLoad to disable plugin caching for this filter.