# Keyword Reference

# $tagNMDATETIMEFORMATQUERY

Contains information about the control callback field

Global Const $tagNMDATETIMEFORMATQUERY = $tagNMHDR & ";ptr Format;struct ;long SizeX;long SizeY; endstruct"

## 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.
SizeX | Must be filled with the maximum width of the text that will be displayed in the callback field
SizeY | Must be filled with the maximum height of the text that will be displayed in the callback field

## Remarks

It contains a string (taken from the control's format string) that defines a callback field.
The structure receives the maximum allowable size of the text that will be displayed in the callback field.
This structure is used with the $DTN_FORMATQUERY notification message.