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


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Get device independent resolution for rendering.


void SDL_RenderGetLogicalSize(SDL_Renderer * renderer, int *w, int *h);

Function Parameters


a rendering context


an int to be filled with the width


an int to be filled with the height


When using the main rendering target (eg no target texture is set): this may return 0 for w and h if the SDL_Renderer has never had its logical size set by SDL_RenderSetLogicalSize(). Otherwise it returns the logical width and height.

When using a target texture: Never return 0 for w and h at first. Then it returns the logical width and height that are set.


This function is available since SDL 3.0.0.


CategoryAPI, CategoryRender, CategoryDraft

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