This notification 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.
At a Glance
| Header file: | Commctrl.h |
| Windows CE versions: | 1.0 and later |
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 Values
TRUE prevents the changes. FALSE accepts the changes.
See Also