Provides COM objects with version-independent access to the
Parameters attributeType Type: System .Type The of the custom attribute to be checked for this assembly. Type inherit Type: System .Boolean This argument is ignored for objects of this type. Return Value
System .Boolean if a custom attribute identified by the specified true is defined; otherwise, Type . false
This method is for access to managed classes from unmanaged code, and should not be called from managed code.
method indicates whether a custom attribute identified by the specified IsDefined is defined. Type .NET Framework
Supported in: 4, 3.5, 3.0, 2.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see
.NET Framework System Requirements.