SDL_GetRenderScale - Man Page

#include <SDL3/SDL_render.h>

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

Each render target has its own scale. This function gets the scale for the current render target.

renderer

the rendering context.

scaleX

a pointer filled in with the horizontal scaling factor.

scaleY

a pointer filled in with the vertical scaling factor.

for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.

SDL_SetRenderScale(3)

SDL_SetRenderScale(3).