Criteria for +retrieving system attribute information

The criteria object specifies the system attribute about +which to retrieve information.

The criteria object has three properties: Entity, Key, +and SystemData. These are described in the following +table. Properties enclosed in brackets are optional.

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**Table:** Criteria object properties
+ Property +	+ Description +	+ Type +	+ Value +
+ `criteria.Entity` +	+ Specifies the entity of the system attribute. + Together with `Key`, this specifies the system attribute +to retrieve. + For more information about entities, see section System attributes. +	+ string +	+ For a complete list of supported entities, see section Supported system attributes (entities and keys). + For example: `"Memory"` +
+ `criteria.Key` +	+ Specifies the key of the system attribute. The available keys depend +on the entity. + Together with `Entity`, this specifies the system +attribute to retrieve. + For more information about keys, see section System attributes. +	+ string +	+ For a complete list of supported keys per entity, see the Key column +of the tables in section Supported system attributes (entities and keys). + For example: `"DriveInfo"` +
+ `[criteria.SystemData]` +	+ Specifies the value of the system attribute. + Some system attributes require this property as input for `GetInfo`. To find out which attributes, see the Input column of the +tables in section Supported system attributes (entities and keys). + The `SystemData` object has one or more properties +that together represent the system attribute value. The exact set of properties +depends on the system attribute (specifically, on the system data type used +for input). + For more information about system attribute values, see section Supported system attributes (entities and keys). +	+ object +	+ The object properties depend on the system attribute. See the Input column +cell for the appropriate system attribute in section Supported system attributes (entities and keys). + For example, the `Memory - DriveInfo` system attribute +takes `DriveInfo` information +as input for `GetInfo`: + `SystemData.Drive = "C:\\"` +