---
name: "SDL_LoadFile_IO"
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_LoadFile_IO"
---

# SDL\_LoadFile\_IO(3)

Load all the data from an SDL data stream.

## NAME

SDL\_LoadFile\_IO - Load all the data from an SDL data stream.

## HEADER FILE

Defined in SDL3/SDL\_iostream.h

## SYNOPSIS

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

**void \* SDL\_LoadFile\_IO(SDL\_IOStream \*src, size\_t \*datasize, bool closeio);**

## DESCRIPTION

The data is allocated with a zero byte at the end (null terminated) for convenience. This extra byte is not included in the value reported via **datasize** .

The data should be freed with  **SDL\_free** ().

## FUNCTION PARAMETERS

- *src*

  the  **SDL\_IOStream**\
    to read all available data from.

- *datasize*

  a pointer filled in with the number of bytes read, may be NULL.

- *closeio*

  if true, calls  **SDL\_CloseIO** () on **src** before returning, even in the case of an error.

## RETURN VALUE

Returns the data or NULL on failure; call

**SDL\_GetError** () for more information.

## THREAD SAFETY

This function is not thread safe.

## AVAILABILITY

This function is available since SDL 3.2.0.

## SEE ALSO

**•**(3), [**SDL\_LoadFile**(3)](/SDL_LoadFile/3.md), **•**(3), [**SDL\_SaveFile\_IO**(3)](/SDL_SaveFile_IO/3.md)