Man page - sdl_setwindowalwaysontop(3)

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Package: libsdl3-doc
apt-get install libsdl3-doc

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SDL_SetWindowAlwaysOnTop - Set the window to always be above the others.

Defined in SDL3/SDL_video.h

#include "SDL3/SDL.h"

bool SDL_SetWindowAlwaysOnTop(SDL_Window *window, bool on_top);

This will add or remove the window’s

SDL_WINDOW_ALWAYS_ON_TOP flag. This will bring the window to the front and keep the window above the rest.

	window		the window of which to change the always on top state.
	on_top		true to set the window always on top, false to disable.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.