1# @ohos.app.ability.ConfigurationConstant (ConfigurationConstant)
2
3The **ConfigurationConstant** module provides the enumerated values of the environment configuration information.
4
5> **NOTE**
6>
7> The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
8
9## Modules to Import
10
11```ts
12import { ConfigurationConstant } from '@kit.AbilityKit';
13```
14
15## ColorMode
16
17Enumerates the color modes.
18
19**Atomic service API**: This API can be used in atomic services since API version 11.
20
21**System capability**: SystemCapability.Ability.AbilityBase
22
23| Name| Value| Description|
24| -------- | -------- | -------- |
25| COLOR_MODE_NOT_SET | -1 | Unspecified color mode.|
26| COLOR_MODE_DARK | 0 | Dark mode.|
27| COLOR_MODE_LIGHT | 1 | Light mode.|
28
29
30## Direction
31
32Enumerates the display orientations.
33
34**Atomic service API**: This API can be used in atomic services since API version 11.
35
36**System capability**: SystemCapability.Ability.AbilityBase
37
38| Name| Value| Description|
39| -------- | -------- | -------- |
40| DIRECTION_NOT_SET | -1 | Unspecified direction.|
41| DIRECTION_VERTICAL | 0 | Vertical direction.|
42| DIRECTION_HORIZONTAL | 1 | Horizontal direction.|
43
44
45## ScreenDensity
46
47Enumerates the screen density modes.
48
49**Atomic service API**: This API can be used in atomic services since API version 11.
50
51**System capability**: SystemCapability.Ability.AbilityBase
52
53| Name| Value| Description|
54| -------- | -------- | -------- |
55| SCREEN_DENSITY_NOT_SET | 0 | The screen pixel density is not set.|
56| SCREEN_DENSITY_SDPI | 120 | The pixel density of the screen is 'SDPI'.|
57| SCREEN_DENSITY_MDPI | 160 | The pixel density of the screen is 'MDPI'.|
58| SCREEN_DENSITY_LDPI | 240 | The pixel density of the screen is 'LDPI'.|
59| SCREEN_DENSITY_XLDPI | 320 | The pixel density of the screen is 'XLDPI'.|
60| SCREEN_DENSITY_XXLDPI | 480 | The pixel density of the screen is 'XXLDPI'.|
61| SCREEN_DENSITY_XXXLDPI | 640 | The pixel density of the screen is 'XXXLDPI'.|
62