This example retrieves the current font information, changes it to italic, and sets it using the MLM_SETFONT message.

FATTRS fat;
fat.usRecordLength = sizeof(FATTRS);
WinSendMsg(hwndMle, MLM_QUERYFONT, (MPARAM) &fat, (MPARAM) 0L);
fat.fsSelection = FATTR_SEL_ITALIC;
WinSendMsg(hwndMle, MLM_SETFONT, (MPARAM) &fat, (MPARAM) 0);