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NMHDR Structure

The NMHDR structure contains general information about a notification.

typedef struct tagNMHDR {
    HWND hwndFrom;
    UINT idFrom;
    UINT code;
} NMHDR;

Members

hwndFrom

Window handle of the control sending the notification.

idFrom

Identifier of the control sending the notification.

code

A control-specific notification code.

Comments

The NMHDR structure contains general information about a notification.

The pointer to this structure is specified as the lParam parameter of the WM_NOTIFY message. This pointer usually points to a larger structure, which provides additional information about the notification.

See Also C/C++ API | C++ Classes | Notifications