Réponse acceptée !

CYourClassView::OnDraw(CDC* pDC) give you a 'device context' for painting all existing graphics object like pen, brush, bitmap ect...
pDC is the access to the device.
For drawing text, just pass a string , a reference to a rect and one format.

// Zone to paint text in client window
RECT rcDraw;
::SetRect(&rcDraw, 5, 5, 100, 40);
// draw text with no clip

pDC->DrawText(_T("a string"),&rcDraw,DT_NOCLIP);

On the same way look at : ExtTextOut and TextOut