C / C++ / MFC

HFONT hFont=(HFONT)GetCurrentObject(*pDC,OBJ_FONT);
ASSERT(hFont);
LOGFONT LF;
VERIFY(CFont::FromHandle(hFont)->GetLogFont(&LF));
LF.lfWeight=FW_BOLD;
CFont BoldFont;
VERIFY(BoldFont.CreateFontIndirect(&LF));
CFont* pOldFont=pDC->SelectFont(&BoldFont);
// DRAW BOLD TEXT
pDC->SelectObject(pOldFont);
BoldFont.DeleteObject();

OnPrint(...)
{
  ...
  if(portion in bold){
    LOGFONT lf;
    pDC->GetCurrentFont()->GetLogFont(&lf);
    lf.lfWeight=FW_BOLD;
    CFont font;
    font.CreateFontIndirect(&lf);
    CFont * pFontOld=pDC->SelectObject(&font);
    // do the printing
    pDC->SelectObject(pFontOld);
  }
}

// these handles are created and passed out to whoever'll
// let the thread know when to work and when to quit

HANDLE hWorkToBeDone=CreateEvent(0,FALSE,FALSE,0); // resets on wait
HANDLE hTimeToQuit=CreateEvent(0,TRUE,FALSE,0); // once signalled, stays so

// Basic thread loop

HANDLE Waitables[]={hTimeToQuit,hWorkToBeDone};
for (DWORD W=~WAIT_OBJECT_0;W!=WAIT_OBJECT_0;)
{
	switch (W=WaitForMultipleObjects(2,Waitables,FALSE,INFINITE))
	{
	case WAIT_FAILED:
		// use GetLastError and handle this
		break;
	case WAIT_OBJECT_0: // It is time to quit
		break;
	case WAIT_OBJECT_0+1: // There is work to be done
		; // Do some work
		break;
	case WAIT_TIMEOUT: // impossible? we specified no timeout
	default: // there should be no other cases. (e.g. for abandoned mutexes)
		ASSERT(FALSE);
	}
}