#include <string.h> #include "ofxCore.h" #include "ofxProperty.h" #include "ofxImageEffect.h"
This section of code shows the headers used by the invert plug-in. It includes three OFX header files (you can tell because they start with "ofx") which are...
ofxCore.h
which provides definitions for the underlying plug-in loading mechanisms
ofxProperty.h
which defines the property getting/setting suite
ofxImageEffect.h
which provides access to the image effect suite
The system include file
string.h
is for use of strcmp as the API passes strings about rather than integers or enums to specify actions and properties.