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DTN_FORMAT

DTN_FORMAT
    lpNMFormat = (LPNMDATETIMEFORMAT) lParam;

Sent by a date and time picker (DTP) control to request text to be displayed in a callback field. This notification message is sent in the form of a WM_NOTIFY message.

• The owner of the control must return zero.

lpNMFormat

Address of an NMDATETIMEFORMAT structure containing information regarding this instance of the notification message. The structure contains the substring that defines the callback field and receives the formatted string that the control will display.

Handling this message allows the owner of the control to provide a custom string that the control will display. (For additional information about callback fields, see Callback fields.)

Version 4.70

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