So if you don't understand the title.. Then here is a picture: https://gyazo.com/14614fb8d62a02d68448aafbcc047763 I want to check if player is clicking own inventory (As you can see by the red circle) but how? btw it's on InventoryClickEvent
Code (Java): @Override public void onInventoryClick(InventoryClickEvent event) { if (event.getRawSlot() < event.getInventory().getSize()) { // Upper / Created Inventory } else { // Player Inventory } }