Creates a predefined geographic coordinate system.
[Visual Basic .NET] Public Function CreateGeographicCoordinateSystem ( _ ByVal gcsType As Integer _ ) As IGeographicCoordinateSystem
[C#] public IGeographicCoordinateSystem CreateGeographicCoordinateSystem ( int gcsType );
[C++]
HRESULT CreateGeographicCoordinateSystem(
  long gcsType,
  IGeographicCoordinateSystem** gcs
);
[C++]Parameters
gcsType gcsType is a parameter of type long gcs [out, retval]gcs is a parameter of type IGeographicCoordinateSystem
Product Availability
Description
Use an element from the esriSRGeoCSType, esriSRGeoCS2Type, or esriSRGeoCS3Type enumerations as the gcsType to create a particular predefined geographic coordinate system.
Remarks
The example code shows how to create an object that represents the WGS 1984 geographic coordinate system. 
            ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass();
            //Create a geographic coordinate system using the available geographic 
            //coordinate systems. These can be found in the esriGeometry esriSRGeoCSType
            //enumeration. 
            IGeographicCoordinateSystem geographicCoordinateSystem = spatialReferenceFactory.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
        Dim pSpatRefFact As ESRI.ArcGIS.Geometry.ISpatialReferenceFactory
        'Set the spatial reference factory to a new spatial reference environment 
        pSpatRefFact = New ESRI.ArcGIS.Geometry.SpatialReferenceEnvironment
Dim pGCS As ESRI.ArcGIS.Geometry.IGeographicCoordinateSystem
        'Create a geographic coordinate system using the available geographic 
        'coordinate systems. These can be found in the esriGeometry esriSRGeoCSType
        'enumeration. 
        pGCS = pSpatRefFact.CreateGeographicCoordinateSystem(ESRI.ArcGIS.Geometry.esriSRGeoCSType.esriSRGeoCS_WGS1984)
See Also
ISpatialReferenceFactory Interface | esriSRGeoCSType Constants | esriSRGeoCS2Type Constants | esriSRGeoCS3Type Constants