Bitmap files

How can i read each pixel of a Bitmap file, please give me some code?
Who is Participating?

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

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.

In what language?
Probably C++, right?  (I'm not totally stupid.  I thought this was the window section.)
answer coming.

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
Introduction to R

R is considered the predominant language for data scientist and statisticians. Learn how to use R for your own data science projects.

What I would do is load the bitmap from the file using LoadImage().  Then you don't have to "parse" the information in the file  (which can be done if you are interested in doing it that way.)

To load the image you would do.

HBITMAP ImgHnd = LoadImage(NULL,"c:\path\filename.bmp",IMAGE_BITMAP,0,0,LR_DEFAULTSIZE | LR_LOADFROMFILE);

This loads the image as a screen compatible bitmap.  I'm assuming that is what you want.  If you don't want it screen compatible it can be used to load a DIB bitmap.  

To read the pixels, you need to select the bitmap into a compatible device context.  To do that you would do

HDC DCMem = CreateCompativleDC(DCHnd);


HBITMAP OldBitMap = SelectObject(DCMem,ImgHnd);// Select in image loaded from LoadImage().

// now use GetPixel() to get the pixels, like
COLOREF Color = GetPixel(DCMem,1,1);


I hope this helps.  Ask if you have questions.
I have to go, but If you want to quickly get the pixel information in an array.  You can load the image as a DIB bitmap by specifying LR_CREATEDIBSECTION in the LoadImage() and then use GetDIBits() to get all the pixels at once.
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

From novice to tech pro — start learning today.