This item is deprecated. Please use Uniform Type Identifiers as a replacement.
The four-character Macintosh Creator code of the attached file.
This example uses the Creator code used for image/jpeg file types in the File Type Sets editor.
Dim file As EmailAttachment file = New EmailAttachment file.ContentEncoding = "UTF8" file.MIMEType = "image/jpeg" file.MacCreator = "prvw" file.MacType = "JPEG"
All project types on all supported operating systems.