Defines a rectangular area
typedef struct{
Sint16 x, y;
Uint16 w, h;
} SDL_Rect;
x, y
Position of the upper-left corner of the rectangle
w, h
The width and height of the rectangle
A SDL_Rect defines a rectangular area of pixels. It is used by SDL_BlitSurface to define blitting regions and by several other video functions.
SDL_BlitSurface, SDL_UpdateRect