I have copyright version 2003 of the Beginning Visual C++ book from Ivor Horton. I've completed chapter 14 and have a working application with menus and toolbars just as shown in the book. The next chapter, Chapter 15 continues this program and instructs one to enter the following 2 code segments to draw a rectangle and then to draw 2 arcs. Neither the rectangle nor the arcs are drawn. Anyone else having this problem? Is there a Windows API function call missing to instruct Windows to update the display?

Thanks in advance,
Dan

void CSketcherView::OnDraw(CDC* pDC)
{
    CSketcherDoc* pDoc = GetDocument();
    ASSERT_VALID(pDoc);

    pDC->MoveTo(50, 50);
    pDC->LineTo(50, 200);
    pDC->LineTo(150, 200);
    pDC->LineTo(150, 50);
    pDC->LineTo(50, 50);
}

It then provides examples for drawing 2 arcs as follows:

void CSketcherView::OnDraw(CDC* pDC)
{
    CSketcherDoc* pDoc = GetDocument();
    ASSERT_VALID(pDoc);

    pDC->Arc(50,50,150,150,100,50,150,100);

    // Define the bounding rectangle for the 2nd (smaller) circle
    CRect* pRect = new CRect(250,50,300,100);
    CPoint Start(275,100);
    CPoint End(250,75);
    pDC->Arc(pRect,Start,End);
    delete pRect;
}

Assure that the base class for the class CSketcherView is derived from CView and not CEditView!

How did you solve this? It would help to see the entire SketcherView.cpp and SketcherView.h files. Did you include the <math.h> in the .cpp file. I can't remember if it is required there for the ARC().