SDL_SetWindowRelativeMouseMode - Set relative mouse mode for a window.

       This function is available since SDL 3.2.0.

       While  the  window has focus and relative mouse mode is enabled, the cursor is hidden, the mouse position
       is constrained to the window, and SDL will report continuous relative mouse motion even if the  mouse  is
       at the edge of the window.

       If  you'd like to keep the mouse position fixed while in relative mode you can use SDL_SetWindowMouseRect
       (). If you'd like the cursor to be at a specific  location  when  relative  mode  ends,  you  should  use
       SDL_WarpMouseInWindow () before disabling relative mode.

       This function will flush any pending mouse motion for this window.

window the window to change.

       enabled
              true to enable relative mode, false to disable.

       Defined in SDL3/SDL_mouse.h

       SDL_SetWindowRelativeMouseMode - Set relative mouse mode for a window.

       Returns true on success or false on failure; call

       SDL_GetError () for more information.

•(3), SDL_GetWindowRelativeMouseMode(3)

Simple Directmedia Layer                           SDL 3.2.10                  SDL_SetWindowRelativeMouseMode(3)

#include"SDL3/SDL.h"boolSDL_SetWindowRelativeMouseMode(SDL_Window*window,boolenabled);

       This function should only be called on the main thread.