# Keyword Reference

# $tagNMDATETIMEFORMAT

Contains information about a portion of the format string that defines a callback field within a date and time picker (DTP) control

Global Const $tagNMDATETIMEFORMAT = $tagNMHDR & ";ptr Format;" & $tagSYSTEMTIME & ";ptr pDisplay;wchar Display[64]"

## Parameters

$tagNMHDR | Contains information about a notification message.
Format | Pointer to a null terminated string that defines the control callback field. The string comprises one or more "X" characters.
$tagSYSTEMTIME | The date and time to be formatted.
pDisplay | Pointer to a null terminated string that contains the display text of the control. By default, this is the address of the Display member of this structure. It is acceptable to have pDisplay point to an existing string. In this case, you don't need to assign a value to Display. However, the string that pDisplay points to must remain valid until another $DTN_FORMAT notification is sent or until the control is destroyed.
Display | 64 character buffer that is to receive the null terminated string that the control will display. It is not necessary to fill the entire buffer.

## Remarks

It carries the string that defines the callback field and contains a buffer to receive the string that will be displayed in the callback field.
This structure is used with the $DTN_FORMAT notification message.

## Related

$tagNMHDR, $tagSYSTEMTIME