Loading multiple textures in a Gui control

Hi everybody,

i have a gui control with a texture that will look like panel,
i.e. needs to be partly enlarged.

as far as i know, i can load only 1 texture inside my gui control (using mTextureHandle),
which means i have to do some operations with it before it's removed,
to split it in multiple (3x3) small textures.

i've found a resource that does something similar,
but i would like to know if there's a better approach.
any details about the actual approach is appreciated!

thanks
yannis