This method is implemented to receive a pointer to an IIMCallback2 interface. An input method (IM) uses the IIMCallback2 interface to send keystrokes to applications and to change the icons on the Input Panel button.

HRESULT RegisterCallback( 
IIMCallback *pIMCallback);


  • pIMCallback
    Pointer to an IIMCallback2 interface implemented in the input panel. The IM can call methods on this interface to send information back to the input panel.

Return Values

An appropriate HRESULT value is returned.


The IIMCallback2 interface to the input panel is exposed only through this method. The input panel calls this method during the initialization of the IM, along with Select, GetInfo, and ReceiveSipInfo.


Runs On Versions Defined in Include Link to
Windows CE OS 2.12 and later Sip.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.

See Also

IIMCallback2, IInputMethod2::GetInfo, IInputMethod2::ReceiveSipInfo, IInputMethod2::Select

 Last updated on Tuesday, July 13, 2004

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