Functions not Related to Specific Images

gimp - Main functions needed for building a GIMP plug-in. This header includes all other GIMP Library headers.
gimpcontext - Functions to manipulate a plug-in's context.
gimpgimprc - Interactions with settings from .gimprc.
gimphelp - Loading help pages using gimp_help.
gimpmessage - Display a dialog box with a message.
gimpplugin - Functions useful for plugins, e.g. registration and progress indicators.
gimpproceduraldb - Functions for querying and changing procedural database (PDB) entries.
gimpprogress - Functions for embedding the progress bar into a plug-in's GUI.