(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_SetWindowResizable

Set the user-resizable state of a window.

Header File

Syntax

bool SDL_SetWindowResizable(SDL_Window *window, bool resizable);

Function Parameters

SDL_Window *	window	the window of which to change the resizable state.
bool	resizable	true to allow resizing, false to disallow.

Return Value

(bool) Returns true on success or false on failure; call SDL_GetError() for more information.

Remarks

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.

Thread Safety

This function should only be called on the main thread.

Version

This function is available since SDL 3.1.3.