SDL_SetRenderScale - Man Page

Defined in SDL3/SDL_render.h

#include "SDL3/SDL.h"

bool SDL_SetRenderScale(SDL_Renderer *renderer, float scaleX, float scaleY);

The drawing coordinates are scaled by the x/y scaling factors before they are used by the renderer. This allows resolution independent drawing with a single coordinate system.

If this results in scaling or subpixel drawing by the rendering backend, it will be handled using the appropriate quality hints. For best results use integer scaling factors.

renderer

the rendering context.

scaleX

the horizontal scaling factor.

scaleY

the vertical scaling factor.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

·(3), SDL_GetRenderScale(3)

SDL_GetRenderScale(3), SDL_RenderCoordinatesFromWindow(3), SDL_RenderCoordinatesToWindow(3).