This structure contains information about a notification message. The pointer to this structure is specified as the lParam member of the WM_NOTIFY message.

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


  • hwndFrom
    Window handle to the control sending a message.
  • idFrom
    Identifier of the control sending a message.
  • code
    Notification code. This member can be a control-specific notification code or it can be one of the common notification codes. The following values are not supported:


Runs on Versions Defined in Include Link to
Windows CE OS 1.0 and later Winuser.h    

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

 Last updated on Tuesday, July 13, 2004

© 1992-2000 Microsoft Corporation. All rights reserved.