ISpThreadTask::WindowMessage

ISpThreadTask::WindowMessage implements the processing of window messages.

virtual LRESULT STDMETHODCALLTYPE WindowMessage(
   void    *pvTaskData,
   HWND     hWnd,
   UINT     Msg,
   WPARAM   wParam,
   LPARAM   lParam
) = 0;

Parameters

pvTaskData

[in] Pointer passed to ISpTaskManager::CreateThreadControl.

hWnd

[in] A window handle.

Msg

[in] The type of window message.

wParam

Message-specific information. This will change based on the Msg value.

lParam

Message-specific information. This will change based on the Msg value.

Return values

Remarks

Not all applications will need a window and this method may be left unimplemented. If the caller of ISpThreadControl::StartThread passes a non-NULL HWND pointer, the client must implement this function and must also use a MessageWaitForMultipleObjects() loop in the ThreadProc.