###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.)
# SDL_RenderDrawLineF

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

## Header File

Defined in [SDL_render.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_render.h)

## Syntax

```c
int SDL_RenderDrawLineF(SDL_Renderer * renderer,
                        float x1, float y1, float x2, float y2);
```

## Function Parameters

|                                |              |                                        |
| ------------------------------ | ------------ | -------------------------------------- |
| [SDL_Renderer](SDL_Renderer) * | **renderer** | The renderer which should draw a line. |
| float                          | **x1**       | The x coordinate of the start point.   |
| float                          | **y1**       | The y coordinate of the start point.   |
| float                          | **x2**       | The x coordinate of the end point.     |
| float                          | **y2**       | The y coordinate of the end point.     |

## Return Value

(int) Return 0 on success, or -1 on error.

## Version

This function is available since SDL 2.0.10.

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[CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRender](CategoryRender)