When I try to make a loop points it doesn't work.
Create:
bgm_play(bgm_test, 1, 1, true, 81000, 1816000, 44100);
Begin Step:
/// Loop music using samples.

if(bgm_sample_loop == true)
{
if(bgm_handle != noone)
{
if(sound_get_length(bgm_handle) >= bgm_sample_end/bgm_sample_rate)
{
sound_set_loop(bgm_handle, bgm_sample_start/bgm_sample_rate, bgm_sample_end/bgm_sample_rate);
}
}
}
Bgm Script:
// Check if there's music already playing.
if(SFX.bgm_handle != noone)
{
if(sound_isplaying(SFX.bgm_handle))
{
sound_stop(SFX.bgm_handle);
}
SFX.bgm_handle = noone;
}

// Set music handle and other things.
SFX.bgm_handle = sound_loop_single(SFX.argument0);
sound_volume (SFX.bgm_handle, argument1);
sound_pitch (SFX.bgm_handle, argument2);
SFX.bgm_sample_loop = argument3;
SFX.bgm_sample_start = argument4;
SFX.bgm_sample_end = argument5;
SFX.bgm_sample_rate = argument6;