---
name: "SDL_PointInRect"
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_PointInRect"
---

# SDL\_PointInRect(3)

Determine whether a point resides inside a rectangle.

## NAME

SDL\_PointInRect - Determine whether a point resides inside a rectangle.

## HEADER FILE

Defined in SDL3/SDL\_rect.h

## SYNOPSIS

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

**SDL\_FORCE\_INLINE bool SDL\_PointInRect(const SDL\_Point \*p, const SDL\_Rect \*r);**

## DESCRIPTION

A point is considered part of a rectangle if both **p** and **r** are not NULL, and **p** and \< the rectangle's x+w and y+h. So a 1x1 rectangle considers point (0,0) as "inside" and (0,1) as not.

Note that this is a forced-inline function in a header, and not a public API function available in the SDL library (which is to say, the code is embedded in the calling program and the linker and dynamic loader will not be able to find this function inside SDL itself).

## FUNCTION PARAMETERS

- *p*

  the point to test.

- *r*

  the rectangle to test.

## RETURN VALUE

Returns true if **p** is contained by **r** , false otherwise.

## THREAD SAFETY

It is safe to call this function from any thread.

## AVAILABILITY

This function is available since SDL 3.2.0.