esriGPParameterDirection Constants
  
Direction of Geoprocessing parameter.
| Constant | Value | Description | 
| esriGPParameterDirectionInput | 0 | Input parameter. | 
| esriGPParameterDirectionOutput | 1 | Output parameter. | 
 
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.