Marshal.IsComObject(Object) Method
Definition
Important
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Indicates whether a specified object represents a COM object.
public:
static bool IsComObject(System::Object ^ o);
public static bool IsComObject (object o);
static member IsComObject : obj -> bool
Public Shared Function IsComObject (o As Object) As Boolean
Parameters
- o
- Object
The object to check.
Returns
true
if the o
parameter is a COM type; otherwise, false
.
Exceptions
o
is null
.
Remarks
IsComObject returns true
if the class type of the instance is attributed with System.Runtime.InteropServices.ComImportAttribute or if it derives directly or indirectly from a class attributed with ComImportAttribute. The Tlbimp.exe (Type Library Importer) tool applies this attribute for you when it imports a type library.
Two other methods also determine whether a specified object represents a COM object, but the requirements for returning true
differ from this method's requirements. Type.IsImport returns true
if the class (or interface) is attributed with ComImportAttribute directly; it does not return true
for derived types. RegistrationServices.TypeRepresentsComType returns true
if the type is attributed with ComImportAttribute or derives from a type with the same GUID.
Applies to
See also
.NET
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