LBS_OWNERDRAWFIXED か LBS_OWNERDRAWVARIABLE で WM_INITDIALOG と WM_MEASUREITEM のくる順番が違ってる． LBS_OWNERDRAWFIXED のときは，[WM_MEASUREITEM] -> [WM_INITDIALOG]．LBS_OWNERDRAWVARIABLE のときは，[WM_INITDIALOG] -> [WM_MEASUREITEM]． …