Creating toolbars with > 256 colors

What is the easiest way to create toolbars with greater than 256 color buttons?  When I'm in the Developer Studio and I copy in a high color bitmap from MS Photo editor, it appears just fine on the toolbar I'm creating until I click File/Save.  Then it changes to a 256 color representation.  When I bring up the bitmap that represents the toolbar in MS Photo Editor, the properties show that it is a 256 color bitmap.  If I resave it to a 24 bit color bitmap, Dev Studio no longer can read it. If I compile and run, the buttons are black.  
skinAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

skinAuthor Commented:
In fact I have not been able to use anything above 16 color.
0
galkinCommented:
Standard tool bar doesn't support more then 256 colors. To create toolbar with more then 256 colors you must handle WM_PAINT message, i.e. override OnPaint function in your CToolBar derived class and implement your custom painting using DIB functions. By the way if you copy and paste bitmap <= 256 colors from other graphics application you should save also palette in temporary palette file and then load it in VC++. Only then you should paste bitmap from the clipboard.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
vypressCommented:
well, well...
but at www.codeguru.com/toolbar/ there is an example, how to put 256 color bitmap on toolbar. Simple use LoadBitmap(..) function...
0
skinAuthor Commented:
vypress,

I followed these instructions from the page you pointed me to:
-----------------------------------------------------------
I recently needed to have 256 color toolbars in my app. If you create 256 color bitmaps in devstudio, and try to use them with CToolbar it won't work.
The problem is in the LoadBitmap() member or CToolbar. Appwizard will create the following line in your CMainFrame class:
m_wndToolBar.LoadBitmap(IDR_MAINFRAME)
Here is the fix, just replace the load bitmap call with a call to the control itself:
m_wndToolBar.GetToolBarCtrl().AddBitmap(iNumButtons,IDR_MAINFRAME);
It really is that easy, I found this solution after writing my own toolbar class that used the tool control directly, and 256 color bitmaps worked fine. I couldn't believe it, but it works!
-----------------------------------------------------------
But, first, there wasn't a statement like this
m_wndToolBar.LoadBitmap(IDR_MAINFRAME)
in my CMainFrame class.  So I tried creating an MDI app from scratch and did not find one either.

Thanks for any help you can provide.


0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
System Programming

From novice to tech pro — start learning today.