SDL Wiki
(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


Get the content scale of a display.


float SDL_GetDisplayContentScale(SDL_DisplayID displayID);

Function Parameters

displayID the instance ID of the display to query

Return Value

Returns The content scale of the display, or 0.0f on error; call SDL_GetError() for more details.


The content scale is the expected scale for content based on the DPI settings of the display. For example, a 4K display might have a 2.0 (200%) display scale, which means that the user expects UI elements to be twice as big on this display, to aid in readability.


This function is available since SDL 3.0.0.


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