Help - how to print a TreeView???

hello guru's can anybody help me.. i hav an application which contains a treeview control. now i need to add a button inorder to print the current contents of the tree view control. i am not familiar at all using print b4.. so i will be greatful if u can provide me a good block of code and explain it to me... or please provide any helpful links... thanks in advance.......

PS : Sorry for my bad english