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NMHEADER
typedef struct tagNMHEADER{ NMHDR hdr; int iItem; int iButton; HDITEM FAR* pitem; } NMHEADER, FAR* LPNMHEADER;Contains information about header control notification messages. This structure supersedes the HD_NOTIFY structure.
- hdr
- NMHDR structure that contains information about the notification message.
- iItem
- Zero-based index of the header item that is the focus of the notification message.
- iButton
- Value specifying the index of the mouse button used to generate the notification message. This member can be one of the following values:
0 Left button 1 Right button 2 Middle button - pitem
- Address of an HDITEM structure containing information specific to the item indicated by iItem.
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