---
name: "al_draw_triangle"
section: "3"
platform: "linux"
package: "allegro"
version: "5.2.11.3-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/al_draw_triangle"
---

# al\_draw\_triangle(3)

Allegro 5 API

## NAME

al\_draw\_triangle - Allegro 5 API

## SYNOPSIS

-

  ```
  #include <allegro5/allegro_primitives.h>
  void al_draw_triangle(float x1, float y1, float x2, float y2,
     float x3, float y3, ALLEGRO_COLOR color, float thickness)
  ```

## DESCRIPTION

Draws an outlined triangle.

*Parameters:*

- •

  x1, y1, x2, y2, x3, y3 - Three points of the triangle

- •

  color - Color of the triangle

- •

  thickness - Thickness of the lines, pass `<= 0` to draw hairline lines

## SEE ALSO

[al\_draw\_filled\_triangle(3)](/al_draw_filled_triangle/3.md), [al\_draw\_soft\_triangle(3)](/al_draw_soft_triangle/3.md)