kOfxImagePropUniqueIdentifier — Uniquely labels an image


#include "/ofxImageEffect.h"
#define kOfxImagePropUniqueIdentifier "OfxImagePropUniqueIdentifier"


kOfxImagePropUniqueIdentifier is of type ASCII string , and has only a single dimension.

Property Set

This is a property that belongs to the image instance (read only).


Uniquely labels an image

This is host set and allows a plug-in to differentiate between images. This is especially useful if a plugin caches analysed information about the image (for example motion vectors). The plugin can label the cached information with this identifier. If a user connects a different clip to the analysed input, or the image has changed in some way then the plugin can detect this via an identifier change and re-evaluate the cached information.