(This is the documentation for SDL3, which is under heavy development and the API is changing! 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, but apps should use #include <SDL3/SDL.h>

Syntax

#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.

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CategoryAPI, CategoryAPIMacro, [[CategoryHints]], [[CategoryDraft]]

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