---
name: "SDL_RenderLine"
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_RenderLine"
---

# SDL\_RenderLine(3)

Draw a line on the current rendering target at subpixel precision.

## NAME

SDL\_RenderLine - Draw a line on the current rendering target at subpixel precision.

## HEADER FILE

Defined in SDL3/SDL\_render.h

## SYNOPSIS

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

**bool SDL\_RenderLine(SDL\_Renderer \*renderer, float x1, float y1, float x2, float y2);**

## FUNCTION PARAMETERS

- *renderer*

  the renderer which should draw a line.

- *x1*

  the x coordinate of the start point.

- *y1*

  the y coordinate of the start point.

- *x2*

  the x coordinate of the end point.

- *y2*

  the y coordinate of the end point.

## 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\_RenderLines**(3)](/SDL_RenderLines/3.md)