#include "SDL.h"
Uint8 SDL_GetRelativeMouseState(int *x, int *y);
The current button state is returned as a button bitmask, which can be tested using the SDL_BUTTON(X) macros, and x and y are set to the change in the mouse position since the last call to SDL_GetRelativeMouseState or since event initialization. You can pass NULL for either x or y.
SDL_GetMouseState
created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59