IInputMethod3::RegisterCallback2 (Compact 2013)

3/28/2014

Implement this method to receive a pointer to an IIMCallback2 interface.

Syntax

HRESULT RegisterCallback2(
  IIMCallback2* pIMCallback2
);

pIMCallback2
[in] Pointer to an IIMCallback2 interface that is implemented in the software-based input panel (SIP). The input method (IM) can call methods on this interface to send information back to the SIP.

Returns S_OK to indicate success; otherwise, return the appropriate HRESULT value to indicate that it was not successful.

This method is the only way to access the IIMCallback2 interface to the SIP. The SIP calls this method during the initialization of the input method, along with IInputMethod3::Select, IInputMethod3::GetInfo, and IInputMethod3::ReceiveSipInfo.

An input method uses IIMCallback2 to send keystrokes to applications and to change the icons on the Input Panel.