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


A variable controlling verbosity of the logging of SDL events pushed onto the internal queue.

Header File

Defined in SDL_hints.h




This variable can be set to the following values, from least to most verbose:

This is generally meant to be used to debug SDL itself, but can be useful for application developers that need better visibility into what is going on in the event queue. Logged events are sent through SDL_Log(), which means by default they appear on stdout on most platforms or maybe OutputDebugString() on Windows, and can be funneled by the app with SDL_LogSetOutputFunction(), etc.

This hint can be toggled on and off at runtime, if you only need to log events for a small subset of program execution.

CategoryAPI, CategoryAPIMacro, CategoryHints

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