Set the drawing area for rendering on the current target.
Defined in SDL_render.h
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.