The IDesignerRegistration interface allows a design-time instance to provide designer-specific information to the host at run time.
This interface is optional. Designers that need to register information specific to an authored run-time object should implement the interface and specify the DESIGNERFEATURE_REGISTRATION flag in the registry.
The IDesignerRegistration interface includes one method, GetRegistrationInfo, summarized below:
| Method | Description |
| GetRegistrationInfo | Returns an array of bytes that the host later passes to DllRegisterDesigner and DllUnregisterDesigner. |