Re: Picture Box images

From:
Goran <goran.pusic@gmail.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Thu, 23 Dec 2010 05:17:35 -0800 (PST)
Message-ID:
<65f74761-9541-4f37-b06a-9dc94db90891@l7g2000vbv.googlegroups.com>
On Dec 22, 5:00 pm, Ed <m...@right.her> wrote:

I have a picture box that I am drawing a bargraph into IDC_BARS
It works with no problems and shows the bargraph in the picture box.
I would like to add a bitmap from a file in the background.


You picture box is already a CStatic, right?

* add a bitmap to your resources
* add a CBitmap member to your parent window
* when you create your parent window
  * add SS_BITMAP style to your picture box when you create it (or do
it from dialog editor if your parent is a dialog)
  * load bitmap
  * call SetBitmap on your member

You don 't do any of that in drawbars (as Joe said, that's wrong,
wrong, wrong).

It's not hard to make your code correct, BTW: derive a class from
CStatic, move drawbars() code into OnPaint of your derived class
(dont' forget message map!) and create that instaed of a plain
CStatic. In OnPaint, do e.g.

CMyThang::OnPaint()
{
  __super::OnPaint();
  CPaintDC dc(this);
  whatYouDidInDrawBars();
  // but using dc, not GetDC();
}

And then, where you call drawbars, call invalidate on your control.

Goran.

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