---
name: "SDL_MaximizeWindow"
section: "3"
platform: "linux"
package: "libsdl3-doc"
version: "3.2.10+ds-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SDL_MaximizeWindow"
---

# SDL\_MaximizeWindow(3)

Request that the window be made as large as possible.

## NAME

SDL\_MaximizeWindow - Request that the window be made as large as possible.

## HEADER FILE

Defined in SDL3/SDL\_video.h

## SYNOPSIS

```
#include "SDL3/SDL.h"
```

**bool SDL\_MaximizeWindow(SDL\_Window \*window);**

## DESCRIPTION

Non-resizable windows can't be maximized. The window must have the

**SDL\_WINDOW\_RESIZABLE**\
  flag set, or this will have no effect.

On some windowing systems this request is asynchronous and the new window state 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 state changes, an

**SDL\_EVENT\_WINDOW\_MAXIMIZED**\
  event will be emitted. Note that, as this is just a request, the windowing system can deny the state change.

When maximizing a window, whether the constraints set via

**SDL\_SetWindowMaximumSize** () are honored depends on the policy of the window manager. Win32 and macOS enforce the constraints when maximizing, while X11 and Wayland window managers may vary.

## FUNCTION PARAMETERS

- *window*

  the window to maximize.

## 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\_MinimizeWindow**(3)](/SDL_MinimizeWindow/3.md), **•**(3), [**SDL\_RestoreWindow**(3)](/SDL_RestoreWindow/3.md), **•**(3), [**SDL\_SyncWindow**(3)](/SDL_SyncWindow/3.md)