ArcObjects Library Reference (Framework)  

IAppROT.Count Property

The count of application references within the running object table.

[Visual Basic .NET]
Public ReadOnly Property Count As Integer
[C#]
public int Count {get;}

Product Availability

Available with ArcGIS Desktop.

Remarks

The following example uses AppROT's Count property to determine if any applications are already running. You would get m_app from the hook in ICommand::OnCreate().

[C#]
IAppROT appRot = new AppROTClass();
if (appRot.Count > 0)
{
  for (int i = 0; i < appRot.Count; i++)
  {
    if (appRot.get_Item(i) is IMxApplication)
      System.Windows.Forms.MessageBox.Show("ArcMap is running.");
    else if (appRot.get_Item(i) is IGxApplication)
      System.Windows.Forms.MessageBox.Show("ArcCatalog is running.");
  }
}
[Visual Basic .NET]
Dim appRot As IAppROT = New AppROTClass()
If appRot.Count > 0 Then
 Dim i As Integer = 0
 While i < appRot.Count
  If TypeOf appRot.get_Item(i) Is IMxApplication Then
   System.Windows.Forms.MessageBox.Show("ArcMap is running.")
  ElseIf TypeOf appRot.get_Item(i) Is IGxApplication Then
   System.Windows.Forms.MessageBox.Show("ArcCatalog is running.")
  End If
  System.Math.Max(System.Threading.Interlocked.Increment(i),i - 1)
 End While
End If

See Also

IAppROT Interface