Re: Simple drawing application fails

From:

"AliR $VC++ MVP$" <AliR@online.nospam>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 15 May 2007 20:15:39 GMT

Message-ID:

<Lxo2i.21600$JZ3.16553@newssvr13.news.prodigy.net>

Try this

  dc.MoveTo(rect.left, rect.top);
  dc.LineTo(rect.right, rect.bottom);
  dc.MoveTo(rect.right, rect.top);
  dc.LineTo(rect.left, rect.bottom);

AliR.

"Sebbie" <Sebbie@discussions.microsoft.com> wrote in message
news:DE2B344D-5519-4619-A0B4-C8E841A64AA2@microsoft.com...

Hi,

I have a simple application where I draw som lines and circles in two
funtions called by the OnPaint(). However it fails. One function draws an
'X' and the other 'O' in the ClientDc. The problem is that I only get som
'/'
instead of an 'X' when drawing an 'X'?
Does this has something to do with which device context I use? In the
turorial I have the onPaint handler uses the CPaintDc dc and passes the dc
as
a pointer to the functions meanwhile in my code I use the CClientDC
locally
in the function?

This is my pseudo code:

OnPaint()
{
  drawX();
}

drawX()
{
  CClientDC dc (this);
  CPen pen;
  CPen* pOldPen;
  CRect rect = aRect[cellNbr];

  ipen.CreatePen(PS_SOLID,4,RGB(125,125,125))
  pOldPen = dc.SelectObject(&pen);
  rect.DeflateRect(10,10,10,10);
  dc.MoveTo(rect.top, rect.left);
  dc.LineTo(rect.bottom, rect.right);
  dc.MoveTo(rect.top, rect.right);
  dc.LineTo(rect.left, rect.bottom);
  dc.SelectObject(pOldPen);
}