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HDN_ITEMCHANGED notification code

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Notifies a header control's parent window that the attributes of a header item have changed. This notification code is sent in the form of a WM_NOTIFY message.

HDN_ITEMCHANGED

    pNMHeader = (LPNMHEADER) lParam;

Parameters

lParam

A pointer to an NMHEADER structure that contains information about the header control, including the attributes that have changed.

Return value

No return value.

Requirements

Requirement Value
Minimum supported client
 Windows Vista [desktop apps only]
Minimum supported server
 Windows Server 2003 [desktop apps only]
Header
Commctrl.h
Unicode and ANSI names
 HDN_ITEMCHANGEDW (Unicode) and HDN_ITEMCHANGEDA (ANSI)