.\" Automatically generated by Pandoc 2.9.2.1
.\"
.TH "al_create_index_buffer" "3alleg5" "" "Allegro reference manual" ""
.hy
.SH NAME
.PP
al_create_index_buffer - Allegro 5 API
.SH SYNOPSIS
.IP
.nf
\f[C]
#include <allegro5/allegro_primitives.h>

ALLEGRO_INDEX_BUFFER* al_create_index_buffer(int index_size,
    const void* initial_data, int num_indices, int flags)
\f[R]
.fi
.SH DESCRIPTION
.PP
Creates a index buffer.
Can return NULL if the buffer could not be created (e.g.\ the system
only supports write-only buffers).
.RS
.PP
\f[I]Note:\f[R]
.PP
This is an advanced feature, often unsupported on lower-end video cards.
Be extra mindful of this function failing and make arrangements for
fallback drawing functionality or a nice error message for users with
such lower-end cards.
.RE
.PP
\f[I]Parameters:\f[R]
.IP \[bu] 2
index_size - Size of the index in bytes.
Supported sizes are 2 for short integers and 4 for integers
.IP \[bu] 2
initial_data - Memory buffer to copy from to initialize the index
buffer.
Can be \f[C]NULL\f[R], in which case the buffer is uninitialized.
.IP \[bu] 2
num_indices - Number of indices the buffer will hold
.IP \[bu] 2
flags - A combination of the ALLEGRO_PRIM_BUFFER_FLAGS(3alleg5) flags
specifying how this buffer will be created.
Passing 0 is the same as passing \f[C]ALLEGRO_PRIM_BUFFER_STATIC\f[R].
.SH SINCE
.PP
5.1.8
.SH SEE ALSO
.PP
ALLEGRO_INDEX_BUFFER(3alleg5), al_destroy_index_buffer(3alleg5)