Called by the control when the underlying ActiveX control is created.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Derived classes can override this method to cast the underlying ActiveX object to an appropriate interface and cache it in a member variable. This value must then be released in an override of the DetachInterfaces method.
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.