SDL_RenderSetViewport

Set the drawing area for rendering on the current target.

Header File

Defined in SDL_render.h, but apps should only #include "SDL.h"!

int SDL_RenderSetViewport(SDL_Renderer * renderer,
                          const SDL_Rect * rect);

renderer	the rendering context
rect	the SDL_Rect structure representing the drawing area, or NULL to set the viewport to the entire target

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

When the window is resized, the viewport is reset to fill the entire new window size.

This function is available since SDL 2.0.0.