al_lock_vertex_buffer man page

al_lock_vertex_buffer — Allegro 5 API

Synopsis

#include <allegro5/allegro_primitives.h>

void* al_lock_vertex_buffer(ALLEGRO_VERTEX_BUFFER* buffer, int offset,
   int length, int flags)

Description

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

Parameters:

·
buffer - Vertex buffer to lock
·
offset - Vertex index of the start of the locked range
·
length - How many vertices to lock
·
flags - ALLEGRO_LOCK_READONLY, ALLEGRO_LOCK_WRITEONLY or ALLEGRO_LOCK_READWRITE

Since

5.1.3

See Also

ALLEGRO_VERTEX_BUFFER(3), al_unlock_vertex_buffer(3)

Referenced By

al_unlock_vertex_buffer(3).

Allegro reference manual