Re: Dynamic icon on dialog

From:
"AliR \(VC++ MVP\)" <AliR@online.nospam>
Newsgroups:
microsoft.public.vc.mfc
Date:
Fri, 30 Mar 2007 16:08:35 GMT
Message-ID:
<7CaPh.12382$Um6.2450@newssvr12.news.prodigy.net>
I don't understand, why can't you make a 16x16 icon and assign that to the
static control? The static control automatically will resize itself to the
icon size.

AliR.

"GT" <ContactGT_remove_@hotmail.com> wrote in message
news:460d3347$0$30940$c3e8da3@news.astraweb.com...

"Joseph M. Newcomer" <newcomer@flounder.com> wrote in message
news:meaq0313b4cg290slrjm6s6eo4cib38g0g@4ax.com...

See below...
On Fri, 30 Mar 2007 13:08:58 +0100, "GT" <ContactGT_remove_@hotmail.com>
wrote:

I have a floating, modeless dialog window with an icon in the corner to
indicate which area of the system is currently being displayed. I change
this icon in code by using lines like:

m_iconTitle.SetIcon(AfxGetApp()->LoadIcon(IDI_IterationPlannedEmpty));
m_iconTitle.SetWindowPos( NULL, 0, 0, 16, 16, SWP_NOMOVE );

****
SWP_NOMOVE | SWP_NOZORDER. But why SetWIndowPos at all? Just put the
icon at the top
left corner, and it will stay there.


I'm trying to set its size to 16x16 as the resource editor won't let me
make the control that small. I dont want to move it, hence the 0,0 for the
x,y parameters and the SWP_NOMOVE at the end. I couldn't find another way
of resizing the CStatic control! I have changed my code to only do this
once in the InitDialog now! I had it all over the place because it keeps
resizing the control whenever I load an icon, but once that is fixed, this
constant resizing shouldn't be necessary.

I want the icon to be 16x16, but everytime I call LoadIcon it resizes to
a
bigger icon. After loading 2 icons, the second line above stops working
and
I only see the top left quarter of the icon in a 16x16 size. Is there a
way
to force LoadIcon to load the icon at 16x16 pixels, or to force the
CStatic
on the dialog to remain at 16x16, so I don't have to keep resizing it.
Visual Studio won't let me set it to be 16x16 by dragging the handles in
the
resource/dialog editor - it won't let me make the icon smaller than about
24x24 (or maybe 32x32, I can't tell)!

*****
Note that CWnd::SetIcon has a second parameter, indicating the icon type.
Also, you could
use ::LoadImage to load the 16x16 icon.
*****


Yes, CWnd::SetIcon has a second parameter, but I don't have an instance of
that base class, I have an instance of the derived class CStatic. The
CStatic::SetIcon doesn't have that second parameter, so I can't use it to
choose the icon size:

"error C2660: 'CStatic::SetIcon' : function does not take 2 arguments"
and
MSDN: http://msdn2.microsoft.com/en-us/library/5w91yh47(VS.71).aspx

I tried deriving my own class from CStatic and overriding the SetIcon
method to call the CWnd method directly, but using this method results in
no icon being shown on the screen at all!

Thanks you for your tips - the LoadImage might be the way to go - I will
investigate this option on Monday.

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