---
name: "SDL_SetRenderDrawBlendMode"
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_SetRenderDrawBlendMode"
---

# SDL\_SetRenderDrawBlendMode(3)

Set the blend mode used for drawing operations (Fill and Line).

## NAME

SDL\_SetRenderDrawBlendMode - Set the blend mode used for drawing operations (Fill and Line).

## HEADER FILE

Defined in SDL3/SDL\_render.h

## SYNOPSIS

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

**bool SDL\_SetRenderDrawBlendMode(SDL\_Renderer \*renderer, SDL\_BlendMode blendMode);**

## DESCRIPTION

If the blend mode is not supported, the closest supported mode is chosen.

## FUNCTION PARAMETERS

- *renderer*

  the rendering context.

- *blendMode*

  the  **SDL\_BlendMode**\
    to use for blending.

## 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\_GetRenderDrawBlendMode**(3)](/SDL_GetRenderDrawBlendMode/3.md)