= SDL_hid_set_nonblocking =

Set the device handle to be non-blocking.

== Syntax ==

<syntaxhighlight lang='c'>
int SDL_hid_set_nonblocking(SDL_hid_device *dev, int nonblock);
</syntaxhighlight>

== Function Parameters ==

{|
|'''dev'''
|A device handle returned from [[SDL_hid_open]]().
|-
|'''nonblock'''
|enable or not the nonblocking reads - 1 to enable nonblocking - 0 to disable nonblocking.
|}

== Return Value ==

Returns 0 on success and -1 on error.

== Remarks ==

In non-blocking mode calls to [[SDL_hid_read]]() will return immediately
with a value of 0 if there is no data to be read. In blocking mode,
[[SDL_hid_read]]() will wait (block) until there is data to read before
returning.

Nonblocking can be turned on and off at any time.

== Version ==

This function is available since SDL 2.0.18.

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[[CategoryAPI]]