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Display Extension State on Status Bar Snippet (ArcObjects .NET 10.5 SDK)
ArcObjects Library Reference

Display Extension State on Status Bar Snippet

Display the state of the specified ArcGIS extension on the status bar when a CLSID or ProgID is supplied.

[C#]
///<summary>Display the state of the specified ArcGIS extension on the status bar when a CLSID or ProgID is supplied.</summary>
///  
///<param name="application">An IApplication interface.</param>
///<param name="extensionName">A System.String that is the CLSID or ProgID for the ArcGIS extension to be returned. Example: "{3C5059FE-9F15-401A-94ED-EED914D73E3E}" or "esriSpatialAnalystUI.SAExtension"</param>
///   
///<remarks>A listing of available ArcGIS extensions CLSID and ProgID values can be found at: http://edndoc.esri.com/arcobjects/9.1/default.asp?URL=/arcobjects/9.1/ArcGISDevHelp/TechnicalDocuments/Guids/ESRIExtIds.htm</remarks>
public void DisplayExtensionStateOnStatusBar(ESRI.ArcGIS.Framework.IApplication application, System.String extensionName)
{
  ESRI.ArcGIS.esriSystem.UID uid=new ESRI.ArcGIS.esriSystem.UIDClass();
  uid.Value=extensionName; // example: "esriPublisherUI.Publisher" 
  ESRI.ArcGIS.esriSystem.esriExtensionState extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESUnavailable;
  ESRI.ArcGIS.esriSystem.IExtensionManager extensionManager=application as ESRI.ArcGIS.esriSystem.IExtensionManager; // dynamic cast
  ESRI.ArcGIS.esriSystem.IExtension extension=extensionManager.FindExtension(uid);

  if (extension != null)
  {
    if (extension is ESRI.ArcGIS.esriSystem.IExtensionConfig)
    {
      ESRI.ArcGIS.esriSystem.IExtensionConfig extensionConfig=(ESRI.ArcGIS.esriSystem.IExtensionConfig)extension; // explicit cast
      extensionState=extensionConfig.State;
    }
    else
      extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled;
  }
  else
  {
    ESRI.ArcGIS.esriSystem.IJITExtensionManager jitExtensionManager=application as ESRI.ArcGIS.esriSystem.IJITExtensionManager; // dynamic cast
    if (jitExtensionManager.IsLoaded(uid))
    {
      ESRI.ArcGIS.esriSystem.IExtension jitExtension=application.FindExtensionByCLSID(uid);
      if (jitExtension is ESRI.ArcGIS.esriSystem.IExtensionConfig)
      {
        ESRI.ArcGIS.esriSystem.IExtensionConfig jitExtensionConfig=(ESRI.ArcGIS.esriSystem.IExtensionConfig)jitExtension; // explicit cast
        extensionState=jitExtensionConfig.State;
      }
      else
      {
        extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled;
      }
    }
    else
    {
      for (int i=0; i < jitExtensionManager.JITExtensionCount; i++)
      {
        if (jitExtensionManager.get_JITExtensionCLSID(i).Compare(uid))
        {
          if (jitExtensionManager.IsExtensionEnabled(uid))
          {
            extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled;
          }
          else
          {
            extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESDisabled;
          }
          break;
        }
      }
    }
  }

  if (extensionState == ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled)
  {
    application.StatusBar.set_Message(0, "Extension is enabled");
  }
  else if (extensionState == ESRI.ArcGIS.esriSystem.esriExtensionState.esriESDisabled)
  {
    application.StatusBar.set_Message(0, "Extension is disabled");
  }
  else if (extensionState == ESRI.ArcGIS.esriSystem.esriExtensionState.esriESUnavailable)
  {
    application.StatusBar.set_Message(0, "Extension is unavailable");
  }
  else
  {
    application.StatusBar.set_Message(0, "Extension state is unknown.");
  }
}
[Visual Basic .NET]
'''<summary>Display the state of the specified ArcGIS extension on the status bar when a CLSID or ProgID is supplied.</summary>
'''  
'''<param name="application">An IApplication interface.</param>
'''<param name="extensionName">A System.String that is the CLSID or ProgID for the ArcGIS extension to be returned. Example: "{3C5059FE-9F15-401A-94ED-EED914D73E3E}" or "esriSpatialAnalystUI.SAExtension"</param>
'''   
'''<remarks>A listing of available ArcGIS extensions CLSID and ProgID values can be found at: http://edndoc.esri.com/arcobjects/9.1/default.asp?URL=/arcobjects/9.1/ArcGISDevHelp/TechnicalDocuments/Guids/ESRIExtIds.htm</remarks>
Public Sub DisplayExtensionStateOnStatusBar(ByVal application As ESRI.ArcGIS.Framework.IApplication, ByVal extensionName As System.String)

  Dim uid As ESRI.ArcGIS.esriSystem.UID=New ESRI.ArcGIS.esriSystem.UIDClass ' example: "esriPublisherUI.Publisher"
  UID.Value=extensionName

  Dim extensionState As ESRI.ArcGIS.esriSystem.esriExtensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESUnavailable
  Dim extensionManager As ESRI.ArcGIS.esriSystem.IExtensionManager=CType(application, ESRI.ArcGIS.esriSystem.IExtensionManager) ' Explicit Cast
  Dim extension As ESRI.ArcGIS.esriSystem.IExtension=extensionManager.FindExtension(UID)

  If Not (extension Is Nothing) Then
    If TypeOf extension Is ESRI.ArcGIS.esriSystem.IExtensionConfig Then
      Dim extensionConfig As ESRI.ArcGIS.esriSystem.IExtensionConfig=CType(extension, ESRI.ArcGIS.esriSystem.IExtensionConfig) ' Explicit Cast
      extensionState=extensionConfig.State
    Else
      extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled
    End If
  Else
    Dim jitExtensionManager As ESRI.ArcGIS.esriSystem.IJITExtensionManager=CType(application, ESRI.ArcGIS.esriSystem.IJITExtensionManager) ' Explicit Cast
    If jitExtensionManager.IsLoaded(UID) Then
      Dim jitExtension As ESRI.ArcGIS.esriSystem.IExtension=application.FindExtensionByCLSID(UID)
      If TypeOf jitExtension Is ESRI.ArcGIS.esriSystem.IExtensionConfig Then
        Dim jitExtensionConfig As ESRI.ArcGIS.esriSystem.IExtensionConfig=CType(jitExtension, ESRI.ArcGIS.esriSystem.IExtensionConfig) ' Explicit Cast
        extensionState=jitExtensionConfig.State
      Else
        extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled
      End If
    Else
      Dim i As Integer=0
      For i=0 To jitExtensionManager.JITExtensionCount - 1
        If jitExtensionManager.JITExtensionCLSID(i).Compare(UID) Then
          If jitExtensionManager.IsExtensionEnabled(UID) Then
            extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled
          Else
            extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESDisabled
          End If
        End If
      Next i
    End If
  End If
  If extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESEnabled Then
    application.StatusBar.Message(0)="Extension is enabled"
  Else
    If extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESDisabled Then
      application.StatusBar.Message(0)="Extension is disabled"
    Else
      If extensionState=ESRI.ArcGIS.esriSystem.esriExtensionState.esriESUnavailable Then
        application.StatusBar.Message(0)="Extension is unavailable"
      Else
        application.StatusBar.Message(0)="Extension state is unknown"
      End If
    End If
  End If

End Sub

Additional Requirements
  • The code in this document requires the following References added to the Visual Studio project:
  • ESRI.ArcGIS.Framework
  • ESRI.ArcGIS.System