A control that supports a user action specified as a command.
Assembly: Microsoft.Office.Interop.Outlook (in Microsoft.Office.Interop.Outlook.dll)
This is a .NET interface derived from a COM coclass that is required by managed code for interoperability with the corresponding COM object. Use this derived interface to access all method, property, and event members of the COM object. However, if a method or event you want to use shares the same name under the same COM object, cast to the corresponding primary interface to call the method, and cast to the latest events interface to connect to the event. Refer to this topic for information about the COM object. For information about the method and property members of the COM object, see _OlkCommandButton. For information about the event members of the COM object, see OlkCommandButtonEvents_Event.
Before you use this control for the first time in the forms designer, add the Microsoft Outlook Command Button Control to the control toolbox. You can only add this control to a form region in an Outlook form using the forms designer.
The following is an example of the command button control at runtime. This control supports Microsoft Windows themes.
For more information about Outlook controls, see Controls in a Custom Form. For examples of add-ins in C# and Visual Basic that use Outlook controls, see code sample downloads on MSDN.