Calls a ‘callback’ with the node as the first argument and the 2nd argument is data ND means: Node and Data. Data is void *, so it could be anything.
Getting Started
Modding Tutorials
ButtonsCreating PopupsEventsFieldsGD Modding DictionaryGetting nodesHook PriorityHooking / Modifying classesLayoutsLoggingMaking web requestsManual HooksMemory ManagementMigrating from Geode v3.x to v4.0Migrating your mods from the traditionalModifying Geode UIPointer CastingPositioningTasksTouch Priority
Geode Mods
Handbook
An Introduction to GD Modding (using Geode)