An offset from the start of the DTBLEDIT structure to a character string filter that describes restrictions, if any, to the characters that can be entered into the edit control.
The filter is not interpreted as a regular expression and the same filter is applied to every character entered. The format of the filter is as follows:
Any character is allowed (for example, "*").
Defines a set of characters (for example, "".)
Indicates a range of characters (for example, "[a-z]").
Indicates that these characters are not allowed (for example, "[~0-9]").
Used to quote any of the previous symbols (for example, "[\-\\\[\]]" means -, \, [, and ] characters are allowed).
Bitmask of flags used to designate the format of the character filter. The following flag can be set:
The filter is in Unicode format. If the MAPI_UNICODE flag is not set, the filter is in ANSI format.
Maximum number of characters that the user can type into the text box.
Property tag for a property of type PT_TSTRING. The ulPropTag member identifies the string property whose data is displayed and edited in the edit control.
A DTBLEDIT structure describes an edit control an area on a dialog box that contains alphanumeric information. Almost all dialog boxes have at least one edit control. Edit controls can be modifiable by a user or read-only.
Edit controls can also be single line or multiline. Multiline edit controls typically have a scroll bar associated with them.