I want to make a picture to be the texture of a ball, how can I do it?

For very simple thing:
Open up your model in MED > Edit > Manage Skins > New Skin > Make tick into Texture > Texture File > Browse for the texture (note that extensions with ExlO need "Extern" tick to be made in a box)
Save your model.

Something like that ?

Thank you !
But how can I realize it using code?

look for
ent_setskin(me,myNewBmap,1);
and
ent_morphskin(my,"newskin.pcx");
in the manual
if you want to change the skin-texture during runtime (code)

but you need to make/prepare the ball in MED before,
so the engine knows how the texture is mapped.
(Skineditor)

If you select to use an "extern" texture in MED,
the model will load this external file,
so you can change this picture without having to
edit the Model in MED. It will always load the
picture of the same name.

I have a less complex solution


it hase a couple more steps but they dont include code
and complex things and its the best way i know of
adding multiple textures to one figure other than
skin maping .. which is wayyyy more complex


1, open MED and load your ball

2, select the section of the ball you would like to cover
with the pic....

3, now open paint and open ur pic in it

4, save as... then in the save box the second dropdown menu that says
save as type: select : 24-bit Bitmap (*.bmp;*.dib)

5, go back to MED and select edit > manage skins > new skins, then check off the textures box then click texture file then click the button with the three periods (...) then select the image you saved from paint

now have fuN!

That's what crypton already said, but ruchen wanted to do it using code.

Oh.... well then he should put it in his question