OnDraw

Hi, I have a CImageDoc class, derived form CDocument
The class has a
private:
        CString m_ID_Res;
member

the OnNewDocument initialize the Doc, and then the OnDraw, member
function of the CImageView class is called, and the CString m_ID_Res
appears on the screen.

But, whe I modified the CString m_ID_Res member, throught a CImageDoc
function, then I can't display the new text. The way I tried to do so
is:

    CImagenDoc newImage;
    newImage.NewID( "m_ID_Res new CString viewalue"); //this modifies
m_ID_Res
    newImagen.SetModifiedFlag(TRUE);
    newImage.UpdateAllViews(NULL);

I was wondering why the OnDraw CView member function isn't called;

For clearness, the CImageView::OnDraw function is copied:

void COjoDeBifeView::OnDraw(CDC* pDC)
{
    CImagenDoc* pDoc = GetDocument();
    ASSERT_VALID(pDoc);

     // Calculate the space required for a single
    // line of text, including the inter-line area.
    TEXTMETRIC tm;
    pDC->GetTextMetrics( &tm );
    int nLineHeight = tm.tmHeight + tm.tmExternalLeading;

    CPoint ptText( 0, 0 );

     CString szName = pDoc->GetIdRes();
     pDC->TextOut( ptText.x, ptText.y, szName );
     ptText.y += nLineHeight;

    
}

thanks.