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Windows Embedded CE 6.0 R3


This structure contains information that the system needs to process taskbar status area messages.


typedef struct _NOTIFYICONDATA { 
  DWORD cbSize;
  HWND hWnd; 
  UINT uID; 
  UINT uFlags; 
  UINT uCallbackMessage; 
  HICON hIcon; 
  WCHAR szTip[64]; 


  • cbSize
    Size of this structure, in bytes.
  • hWnd
    Handle to the window that receives notification messages associated with an icon in the taskbar status area.
  • uID
    Application-defined identifier of the taskbar icon. Values from 0 to 12 are reserved and should not be used.
  • uFlags
    Array of flags that indicate which of the other members contain valid data. This member can be a combination of the values in the following table.

    Value Description


    The hIcon member is valid.


    The uCallbackMessage member is valid.


    The szTip member is valid.

  • uCallbackMessage
    Application-defined message identifier. The system uses this identifier for notification messages that it sends to the window identified in hWnd. These notifications are sent when a mouse event occurs in the bounding rectangle of the icon.
  • hIcon
    Handle to the icon to add, modify, or delete.
  • szTip
    Null-terminated string that contains ToolTip text to display for the icon.


Header shellapi.h
Windows Embedded CE Windows CE 1.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also


Shell Structures