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