memset(&vBookText, '\0', sizeof(BOOKTEXT));
vBookText.textLen = 0; // This will get the length
ulRc = LONGFROMMR(::WinSendMsg( m_hWnd
memset(&vBookText, '\0', sizeof(BOOKTEXT));
vBookText.textLen = 0; // This will get the length
ulRc = LONGFROMMR(::WinSendMsg( m_hWnd