SDL_SetWindowSize - Request that the size of a window's client area be set.

       This function is available since SDL 3.2.0.

       If the window is in a fullscreen or maximized state, this request has no effect.

       To change the exclusive fullscreen mode of a window, use SDL_SetWindowFullscreenMode().

       On  some  windowing  systems, this request is asynchronous and the new window size may not have have been
       applied immediately upon the  return  of  this  function.  If  an  immediate  change  is  required,  call
       SDL_SyncWindow() to block until the changes have taken effect.

       When  the  window  size  changes,  an  SDL_EVENT_WINDOW_RESIZED event will be emitted with the new window
       dimensions. Note that the new dimensions may not match  the  exact  size  requested,  as  some  windowing
       systems can restrict the window size in certain scenarios (e.g. constraining the size of the content area
       to remain within the usable desktop bounds). Additionally, as this is just a request, it can be denied by
       the windowing system.

window the window to change.

       w      the width of the window, must be > 0.

       h      the height of the window, must be > 0.

       SDL_SetWindowSize - Request that the size of a window's client area be set.

       for more information.

SDL_GetWindowSize(3), SDL_SetWindowFullscreenMode(3), SDL_SyncWindow(3)

Simple Directmedia Layer                           SDL 3.2.20                               SDL_SetWindowSize(3)

#include<SDL3/SDL_video.h>boolSDL_SetWindowSize(SDL_Window*window,intw,inth);

       This function should only be called on the main thread.