Perform low-level surface blitting only.
int SDL_LowerBlit (SDL_Surface * src, SDL_Rect * srcrect, SDL_Surface * dst, SDL_Rect * dstrect);
|src||the SDL_Surface structure to be copied from|
|srcrect||the SDL_Rect structure representing the rectangle to be copied, or NULL to copy the entire surface|
|dst||the SDL_Surface structure that is the blit target|
|dstrect||the SDL_Rect structure representing the rectangle that is copied into|
Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
This is a semi-private blit function and it performs low-level surface blitting, assuming the input rectangles have already been clipped.
Unless you know what you're doing, you should be using SDL_BlitSurface() instead.
This function is available since SDL 2.0.0.