# SDL_WINDOWPOS_UNDEFINED_MASK

A magic value used with [SDL_WINDOWPOS_UNDEFINED](SDL_WINDOWPOS_UNDEFINED).

## Header File

Defined in [<SDL3/SDL_video.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_video.h)

## Syntax

```c
#define SDL_WINDOWPOS_UNDEFINED_MASK    0x1FFF0000u
```

## Remarks

Generally this macro isn't used directly, but rather through
[SDL_WINDOWPOS_UNDEFINED](SDL_WINDOWPOS_UNDEFINED) or
[SDL_WINDOWPOS_UNDEFINED_DISPLAY](SDL_WINDOWPOS_UNDEFINED_DISPLAY).

## Version

This macro is available since SDL 3.2.0.

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[CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryVideo](CategoryVideo)