1# context_constant.h 2 3 4## Overview 5 6The **context_constant.h** file declares context-related enums. 7 8**Library**: libability_runtime.so 9 10**System capability**: SystemCapability.Ability.AbilityRuntime.Core 11 12**Since**: 13 13 14**Related module**: [AbilityRuntime](_ability_runtime.md) 15 16 17## Summary 18 19### Files 20 21| Name | Description | 22| --------------------------------------------- | ------------------------------------------------------------ | 23| [context_constant.h](context__constant_8h.md) | Declares context-related enums.<br>**File to include**: <AbilityKit/ability_runtime/context_constant.h><br>**Library**: libability_runtime.so| 24 25 26### Enums 27 28| Name | Description | 29| ------------------------------------------------------------ | ------------------ | 30| [AbilityRuntime_AreaMode](_ability_runtime.md#abilityruntime_areamode) {<br> ABILITY_RUNTIME_AREA_MODE_EL1 = 0,<br> ABILITY_RUNTIME_AREA_MODE_EL2 = 1,<br> ABILITY_RUNTIME_AREA_MODE_EL3 = 2,<br> ABILITY_RUNTIME_AREA_MODE_EL4 = 3,<br> ABILITY_RUNTIME_AREA_MODE_EL5 = 4<br>} | Enumerates the data encryption levels.| 31| [AbilityRuntime_StartVisibility](_ability_runtime.md#abilityruntime_startvisibility) {<br> ABILITY_RUNTIME_HIDE_UPON_START = 0,<br> ABILITY_RUNTIME_SHOW_UPON_START = 1<br>} | Enumerates the visibility modes of the window and dock bar icons when the ability is started. | 32| [AbilityRuntime_WindowMode](_ability_runtime.md#abilityruntime_windowmode) {<br> ABILITY_RUNTIME_WINDOW_MODE_UNDEFINED = 0,<br> ABILITY_RUNTIME_WINDOW_MODE_FULL_SCREEN = 1<br>} | Enumerates the window modes in which an ability can be displayed at startup. | 33| [AbilityRuntime_SupportedWindowMode](_ability_runtime.md#abilityruntime_supportedwindowmode) {<br> ABILITY_RUNTIME_SUPPORTED_WINDOW_MODE_FULL_SCREEN = 0,<br> ABILITY_RUNTIME_SUPPORTED_WINDOW_MODE_SPLIT = 1,<br> ABILITY_RUNTIME_SUPPORTED_WINDOW_MODE_FLOATING = 2<br>} | Enumerates the window modes supported by an ability when it is started. | 34