---
name: "SDL_HINT_APP_ID"
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_HINT_APP_ID"
---

# SDL\_HINT\_APP\_ID(3)

A variable setting the app ID string.

## NAME

SDL\_HINT\_APP\_ID - A variable setting the app ID string.

## HEADER FILE

Defined in SDL3/SDL\_hints.h

## SYNOPSIS

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

**#define SDL\_HINT\_APP\_ID** *SDL\_APP\_ID"*

## DESCRIPTION

This string is used by desktop compositors to identify and group windows together, as well as match applications with associated desktop settings and icons.

This will override

**SDL\_PROP\_APP\_METADATA\_IDENTIFIER\_STRING** , if set by the application.

This hint should be set before SDL is initialized.

## AVAILABILITY

This hint is available since SDL 3.2.0.