• C

Getting RGB values from BMP files

How would I go about loading a BMP file and reading RGB values from specific pixels in the picture?
For example, get the RGB value of pixel 100/50 (X/Y)

Code examples would be appreciated.

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Take a look at BMP format. RGB values are stored as array. Link also contains C-code examples.

> How would I go about loading a BMP file and reading RGB values from specific
> pixels in the picture?
> For example, get the RGB value of pixel 100/50 (X/Y)

> Code examples would be appreciated.

Look at this page:  http://www.gamedev.net/reference/articles/article1251.asp

Scroll down to the section called "Displaying Bitmaps With GDI".  It will show you how to load the bitmap into a Device Context (DC).  Then you can use the Win32 API function called "GetPixel" which returns the color of a pixel at the given coordinates.  That page covers that function as well.

Hope that helps,

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