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