# BuildCallbackContext

> Get a BuildCallbackContext object from a IPreprocessBuildWithContext.OnPreprocessBuild or IPostprocessBuildWithContext.OnPostprocessBuild callback.

## Definition

* **Type:** Class
* **Namespace:** [UnityEditor.Build](/engine/6000.5/script-reference/unityeditor/build.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public class BuildCallbackContext
```

## Properties

| Property                                                                                                           | Description                                                                       |
| ------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------- |
| [IsContentOnlyBuild](/engine/6000.5/script-reference/unityeditor/build/buildcallbackcontext/iscontentonlybuild.md) | Returns true if the build is a content only build type like an AssetBundle build. |
| [IsPlayerBuild](/engine/6000.5/script-reference/unityeditor/build/buildcallbackcontext/isplayerbuild.md)           | Returns true if the build is a player build type.                                 |
| [Report](/engine/6000.5/script-reference/unityeditor/build/buildcallbackcontext/report.md)                         | The build report associated with this build.                                      |