Can i call a single document MFC from dialog MFc? - mfc

Question

i have to draw something in dialog box mfc , so , can i call a single document (because i know how to draw in single document MFC ) , from my main dialog box ?
thnx

Answer 1

You can use the same drawing code both in a CView and in a CDialog.
On the CView drawing works like this:
void CMyView::OnDraw(CDC* pdc)
{
// Draw something on pdc
Draw(pdc);
}
In a CDialog, override the OnPaint() handler, and draw like this:
void CMyDialog::OnPaint()
{
CPaintDC dc(this);
CPaintDC* pdc = &dc;
CDialog::OnPaint();
// Draw something on pdc
Draw(pdc);
}

Answer 2

Instead of a view in a dialog box, use a window derived from CStatic and make it to the size of dialog box on OnSize. It will be better than adding a view in a dialog box.
You have to override the OnPaint() event of the static control. To avoid flicker you have to override OnEraseBkgrnd() event.
class CMyStatic : public CStatic
{
public:
CMyStatic ()
~CMyStatic();
protected:
afx_msg void OnPaint();
void Draw(CDC *pDC);
};
void CMyStatic::Draw(CDC *pDC)
{
}
void CMyStatic::OnPaint()
{
CPaintDC dc(this);
Draw(&dc);
}