Provided by: libsdl3-doc_3.2.26+ds-2_all 

NAME
SDL_GetCurrentRenderOutputSize - Get the current output size in pixels of a rendering context.
SYNOPSIS
#include <SDL3/SDL_render.h>
bool SDL_GetCurrentRenderOutputSize(SDL_Renderer *renderer, int *w, int *h);
DESCRIPTION
If a rendering target is active, this will return the size of the rendering target in pixels, otherwise
return the value of SDL_GetRenderOutputSize().
Rendering target or not, the output will be adjusted by the current logical presentation state, dictated
by SDL_SetRenderLogicalPresentation().
FUNCTION PARAMETERS
renderer
the rendering context.
w a pointer filled in with the current width.
h a pointer filled in with the current height.
RETURN VALUE
for more information.
THREAD SAFETY
This function should only be called on the main thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_GetRenderOutputSize(3)
Simple Directmedia Layer SDL 3.2.26 SDL_GetCurrentRenderOutputSize(3)