(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_hid_set_nonblocking

Set the device handle to be non-blocking.

Syntax

int SDL_hid_set_nonblocking(SDL_hid_device *dev, int nonblock);

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

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