###### (This function is part of SDL_mixer, a separate library from SDL.) # Mix_SetPanning Set the panning of a channel. ## Header File Defined in SDL_mixer.h ## Syntax ```c int Mix_SetPanning(int channel, Uint8 left, Uint8 right); ``` ## Function Parameters | | | | --------------- | ----------------------------------------------------------------- | | **channel** | The mixer channel to pan or [MIX_CHANNEL_POST](MIX_CHANNEL_POST). | | **left** | Volume of stereo left channel, 0 is silence, 255 is full volume. | | **right** | Volume of stereo right channel, 0 is silence, 255 is full volume. | ## Return Value Returns zero if error (no such channel or [Mix_RegisterEffect](Mix_RegisterEffect)() fails), nonzero if panning effect enabled. ## Remarks The left and right channels are specified as integers between 0 and 255, quietest to loudest, respectively. Technically, this is just individual volume control for a sample with two (stereo) channels, so it can be used for more than just panning. If you want real panning, call it like this: ```c Mix_SetPanning(channel, left, 255 - left); ``` Setting `channel` to [MIX_CHANNEL_POST](MIX_CHANNEL_POST) registers this as a posteffect, and the panning will be done to the final mixed stream before passing it on to the audio device. This uses the [Mix_RegisterEffect](Mix_RegisterEffect)() API internally, and returns without registering the effect function if the audio device is not configured for stereo output. Setting both `left` and `right` to 255 causes this effect to be unregistered, since that is the data's normal state. Note that an audio device in mono mode is a no-op, but this call will return successful in that case. Error messages can be retrieved from [Mix_GetError](Mix_GetError)(). Note that unlike most SDL and SDL_mixer functions, this function returns zero if there's an error, not on success. We apologize for the API design inconsistency here. ## Version This function is available since SDL_mixer 3.0.0. ## See Also * [Mix_SetPosition](Mix_SetPosition) * [Mix_SetDistance](Mix_SetDistance) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction)