al_lock_index_buffer(3)

al_lock_index_buffer3

Allegro 5 api

Usage

#include <allegro5/allegro_primitives.h>
void* al_lock_index_buffer(ALLEGRO_INDEX_BUFFER* buffer, int offset,
    int length, int flags)

Overview

Locks a index buffer so you can access its data. Will return NULL if the parameters are invalid, if reading is requested from a write only buffer and if the buffer is already locked.

Parameters:

•

buffer - Index buffer to lock

•

offset - Element index of the start of the locked range

•

length - How many indices to lock

•

flags - ALLEGRO_LOCK_READONLY, ALLEGRO_LOCK_WRITEONLY or ALLEGRO_LOCK_READWRITE

Since

5.1.8

From allegro 5.2.11.3-2 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.