= SDL_hid_device_change_count =

Check to see if devices may have been added or removed.

== Syntax ==

<syntaxhighlight lang='c'>
Uint32 SDL_hid_device_change_count(void);
</syntaxhighlight>

== Return Value ==

Returns a change counter that is incremented with each potential device
change, or 0 if device change detection isn't available.

== Remarks ==

Enumerating the HID devices is an expensive operation, so you can call this
to see if there have been any system device changes since the last call to
this function. A change in the counter returned doesn't necessarily mean
that anything has changed, but you can call [[SDL_hid_enumerate]]() to get
an updated device list.

Calling this function for the first time may cause a thread or other system
resource to be allocated to track device change notifications.

== Version ==

This function is available since SDL 2.0.18.

== Related Functions ==

:[[SDL_hid_enumerate]]

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[[CategoryAPI]]