###### (This function is part of SDL_mixer, a separate library from SDL.) # Mix_ExpireChannel Change the expiration delay for a particular channel. ## Syntax ```c int Mix_ExpireChannel(int channel, int ticks); ``` ## Function Parameters | | | | --------------- | ----------------------------------------------------------------------------------- | | **channel** | the channel to change the expiration time on. | | **ticks** | number of milliseconds from now to let channel play before halting, -1 to not halt. | ## Return Value Returns the number of channels that changed expirations. ## Remarks The channel will halt after the 'ticks' milliseconds have elapsed, or remove the expiration if 'ticks' is -1. This overrides the value passed to the fourth parameter of [Mix_PlayChannelTimed](Mix_PlayChannelTimed)(). Specifying a channel of -1 will set an expiration for _all_ channels. Any halted channels will have any currently-registered effects deregistered, and will call any callback specified by [Mix_ChannelFinished](Mix_ChannelFinished)() once the halt occurs. Note that this function does not block for the number of ticks requested; it just schedules the chunk to expire and notes the time for the mixer to manage later, and returns immediately. ## Version This function is available since SDL_mixer 3.0.0. ---- [CategoryAPI](CategoryAPI)