MAPI Message Field Constants
These constants indicate either the type of transport to use, or the action to perform on the message. They can be combined with bitwise OR to form a bitmask, and are used in the flags member of the MESSAGEFIELDS structure.
| Constant | Value | Description |
|---|---|---|
| MESSAGEFIELDS_FLAGS_DELETEONCLOSE | 0x00000001 | Delete the message permanently if the user cancels. |
| MESSAGEFIELDS_FLAGS_SMSSERVICE | 0x00000002 | An Short Message Service (SMS) message. |
See Also
MAPI Constants | MESSAGEFIELDS | IFormProvider::ComposeMessageForm | IMessageFormHostEx::DoAction
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