HDN_ITEMCHANGING
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4/8/2010
This message notifies a header control parent window the header item attributes are about to change. It is sent in the form of a WM_NOTIFY message.
Syntax
HDN_ITEMCHANGING phdr = (HD_NOTIFY FAR *) lParam;
Parameters
- phdr
Pointer to an NMHEADER structure that contains data about the header control and the header item, including the attributes about to change.
Return Value
TRUE prevents the changes. FALSE accepts the changes.
Requirements
| Header | commctrl.h |
| Windows Embedded CE | Windows CE 1.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |