OlBackStyle Enumeration

Outlook Developer Reference

Specifies how the background of a control is rendered.

Version Information
 Version Added:  Outlook 2007

Name Value Description
olBackStyleOpaque 1 Indicates the background color of the control is rendered.
olBackStyleTransparent 0 Indicates that the background color of the control is the background color of the parent control. It is not a truly transparent display.