问题已经解决,
TBBUTTONINFO tbi;//this structure contains or receives information for a specific button in a toolbar
memset (&tbi, 0, sizeof (tbi));
tbi.cbSize = sizeof (tbi);
tbi.dwMask = TBIF_TEXT | TBIF_COMMAND;
tbi.idCommand = ID_MUTE;
tbi.pszText = L"Mute";