Re: Using HBITMAP with CBitmpa/CBitmapButton

From:

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

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 14 Nov 2008 14:25:00 -0600

Message-ID:

<Y8lTk.7072$c45.5083@nlpi065.nbdc.sbc.com>

I only post here. EggHeadCafe seems to repost the posts in this newsgroup
on their websites.

I guess I forgot my own recommendation of deleting the bitmap before
attaching new ones to it.

So you might want to add these 4 lines to the beginning of LoadBitmapsFrom
file:

   // delete old bitmaps (if present)
   m_bitmap.DeleteObject();
   m_bitmapSel.DeleteObject();
   m_bitmapFocus.DeleteObject();
   m_bitmapDisabled.DeleteObject();

AliR.

"mircowhat" <mircowhat@discussions.microsoft.com> wrote in message
news:5006A6ED-84FB-44CA-B56E-00F3C4DCCE23@microsoft.com...

Hah, Looks like i found my answer to the CBitmapButton.

Looks like you post in there also.

http://www.eggheadcafe.com/software/aspnet/29500616/creating-bitmaps-for-cbit.aspx

"mircowhat" wrote:

Sorry in that first sentence i meant to say LoadImage, not LoadBitmap.

Ok, so i can use Attach for the HBITMAP return of LoadImage, but i'm kind
out of luck on the LoadBitmaps function for CBitmapButtons. I'll try
looking
around codeproject more for something that can substitute.

Any other ideas are appreciated.

Thanks.

"AliR (VC++ MVP)" wrote:

I'm not sure I understand correctly. If the bitmaps are not part of
your
resource anymore then LoadBitmap won't load them. You will either have
to
call LoadImage or use CImage to load them from file.

Once you have a HBITMAP (the return value of LoadBitmap is a HBITMAP),
you
can then attach it to a CBitmap using CBitmap::Attach();

CBitmapButton is a different story, the only way to load bitmaps into a
CBitmapButton that I know of is to put them in your resource.
You can of course write your own bitmap button class that can except a
CBitmap or HBITMAP, or use a third party button.
there might be some on www.codeproject.com

AliR.

"mircowhat" <mircowhat@discussions.microsoft.com> wrote in message
news:E0B30E5B-6891-4471-8D03-490EBD47C594@microsoft.com...

I'm trying to use LoadBitmap to bring a bmp file from a specified
directory,
into my application while the application is running.

All of my images (Around 800 count) are loaded into the resources. I
need
to remove them from the resources and load the images dynamically.
Hence
using LoadBitmap. I plan on loading all the images into a
vector/array so
they can be switched out on the fly. I have about 100
CBitmapButton/CBitmap
objects. I currently load the images by using LoadBitmap and
LoadBitmaps.
They are just taking the resource ID's of my images.

My problem is i can't figure out how to go from a HBITMAP to
something
that
is usable for LoadBitmap/LoadBitmaps.