#pragma section-numbers off
#pragma disable-camelcase

= SDL_UnlockAudioDevice =
Use this function to unlock the audio callback function for a specified device.

<<TableOfContents()>>

== Syntax ==
{{{#!highlight cpp
void SDL_UnlockAudioDevice(SDL_AudioDeviceID dev)
}}}

== Function Parameters ==
||'''dev'''||the ID of the device to be unlocked||

== Code Examples ==
{{{#!highlight cpp
void MyAudioCallback(void *userdata, Uint8* stream, int len)
{
    printf("The audio callback is running!\n");
    SDL_memset(stream, 0, len);  // just silence.
    printf("The audio callback is done!\n");
}

// don't lock for 2 seconds at a time in real life, please.
extern SDL_AudioDeviceID devid;
SDL_Delay(2000);  // callback runs for 2 seconds.
SDL_LockAudioDevice(devid);
printf("The audio callback can't be running right now!\n");
SDL_Delay(2000);  // callback doesn't run for 2 seconds.
printf("Ok, unlocking!\n");
SDL_UnlockAudioDevice(devid);
SDL_Delay(2000);  // callback runs for 2 seconds.
}}}

== Remarks ==
Unlocks a previous [[SDL_LockAudioDevice]]() call. Please see [[SDL_LockAudioDevice#Remarks|that function's remarks]] for more details.

== Related Functions ==
 .[[SDL_LockAudioDevice]]

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[[CategoryAPI]], [[CategoryAudio]]