How to read .bmp, .jpeg image in C language?

[nnhamane]

Is there any inbuilt function in C language by which one can directly access image contents?

[Ancient Dragon]

This would seem to be a good place to begin your research.

[MustyCE]

You can use game libary, just like Allegro, gtk+. Functions that belong these libary can load image and sound...

[ArkM]

Of course, no graphics RTL functions in C. But there are good libraries to read, convert and create bmp, jpeg and others. See, for example:
http://www.thefreecountry.com/sourcecode/graphics.shtml

[marco93]

In Win32, nothing is needed.
All formats are native.

[dwks]

You can read image files in your program in a standard way, if you want to write the reader yourself. wotsit.org is a good reference for this, as already mentioned.

Or you can use a library to read image files into your program (which I would recommend). I can think of at least one such library: http://openil.sourceforge.net/

Displaying images requires a library for sure. You can use SDL and SDL_Image or Allegro (cross-platform graphics libraries) to do this, or the native Win32 API (which is really a library too).

I only personally have experience with the SDL -- if you want help displaying images in the SDL, I'd be glad to provide it.