Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_SetWindowResizable - Set the user-resizable state of a window.
HEADER FILE
Defined in SDL3/SDL_video.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_SetWindowResizable(SDL_Window *window, bool resizable);
DESCRIPTION
This will add or remove the window's SDL_WINDOW_RESIZABLE flag and allow/disallow user resizing of the window. This is a no-op if the window's resizable state already matches the requested state. You can't change the resizable state of a fullscreen window.
FUNCTION PARAMETERS
window the window of which to change the resizable state. resizable true to allow resizing, false to disallow.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError () for more information.
THREAD SAFETY
This function should only be called on the main thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_GetWindowFlags(3) Simple Directmedia Layer SDL 3.2.8 SDL_SetWindowResizable(3)