ISOBJECT(identifier)

Returns the value True or False depending if the identifier represents an object (Boolean).

identifier

The variable name.

REMARKS

* If the variable has been set to Nothing, then True is returned.
* You should always use error handling to be sure that an object reference is valid.
* This function can be useful to determine if a variant is of the vbObject vartype.
* For the Microsoft documentation refer to learn.microsoft.com

Dim MyInt As Integer                ' Declare variables.  
Dim YourObject, MyCheck             ' Note: default variable type is Variant  
Dim MyObject As Object 
Set YourObject = MyObject           ' Assign an object reference.  

Debug.Print IsObject(YourObject)    ' True  
Debug.Print IsObject(MyInt)         ' False  
Debug.Print IsObject(Nothing)       ' True  
Debug.Print IsObject(Empty)         ' False  
Debug.Print IsObject(Null)          ' False