[question]What about it means when the return value is 0

[ferrytt]

emscripten_webgl_create_context

The Returns is described as follows in the documentation:

On success, a strictly positive value that represents a handle to the created context. On failure, a negative number that can be cast to an EMSCRIPTEN_RESULT field to get the reason why the context creation failed.
EMSCRIPTEN_WEBGL_CONTEXT_HANDLE

Is it SUCCESS or FAILURE when the return value is 0?

[stale]

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[sbc100]

Have you seen it return zero. It sounds from the description that the function should not never return zero.

[abram]

I experienced this issue today - emscripten_webgl_create_context returned zero. It was (accidentally) running in a pthread and EmscriptenWebGLContextAttributes.proxyContextToMainThread was set to EMSCRIPTEN_WEBGL_CONTEXT_PROXY_DISALLOW, so I would guess the 0 return value meant that there was a configuration problem. It would be nice to either return a negative value describing the problem (as per the current documentation), or update the docs to document the meaning of a zero return value. Thanks!