# context_constant.h
## Overview
The **context_constant.h** file declares context-related enums.
**Library**: libability_runtime.so
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Since**: 13
**Related module**: [AbilityRuntime](_ability_runtime.md)
## Summary
### Files
| Name | Description |
| --------------------------------------------- | ------------------------------------------------------------ |
| [context_constant.h](context__constant_8h.md) | Declares context-related enums.
**File to include**:
**Library**: libability_runtime.so|
### Enums
| Name | Description |
| ------------------------------------------------------------ | ------------------ |
| [AbilityRuntime_AreaMode](_ability_runtime.md#abilityruntime_areamode) {
ABILITY_RUNTIME_AREA_MODE_EL1 = 0,
ABILITY_RUNTIME_AREA_MODE_EL2 = 1,
ABILITY_RUNTIME_AREA_MODE_EL3 = 2,
ABILITY_RUNTIME_AREA_MODE_EL4 = 3,
ABILITY_RUNTIME_AREA_MODE_EL5 = 4
} | Enumerates the data encryption levels.|