###### (This is the documentation for SDL3, which is under heavy development and the API is changing! [SDL2](https://wiki.libsdl.org/SDL2/) is the current stable version!)
# SDL_HINT_EMSCRIPTEN_ASYNCIFY

Disable giving back control to the browser automatically when running with asyncify.

## Header File

Defined in [SDL_hints.h](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_hints.h), but apps should use `#include <SDL3/SDL.h>`

## Syntax

```c
#define SDL_HINT_EMSCRIPTEN_ASYNCIFY   "SDL_EMSCRIPTEN_ASYNCIFY"
```

## Remarks

With -s ASYNCIFY, SDL calls emscripten_sleep during operations such as
refreshing the screen or polling events.

This hint only applies to the emscripten platform.

The variable can be set to the following values:

- "0": Disable emscripten_sleep calls (if you give back browser control
  manually or use asyncify for other purposes).
- "1": Enable emscripten_sleep calls. (default)

This hint can be set anytime.

## Version

This hint is available since SDL 3.0.0.

----
[CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [[CategoryHints]], [[CategoryDraft]]
<!-- #See the Style Guide for instructions on editing the footer. -->