How to create .xpm?

[Yurong Sun <ysun ece WPI EDU>]

Hi,

As a new learner, I am eager to create and put some icons on the toolbar.
But from the gtk tutorial and examples, I found that the info is very
limited about creating .xpm or xpm data. I even don't understand the
format of array created as xpm data.

Could you please give me some info or some places where I can get some
more detail about creating pixmaps? Thank you very much!

Best,

Yurong