Tree node Type

[stomata]

What does the Tree node type used for?
I put in

ProUITreeNodeType Treedata;
ProUITreeNodeTypeAlloc("OptInputType",&Treedata);
ProUITreeNodetypeAdd(szDlg,szTree,Treedata);
ProUITreeNodeAdd(szDlg, szTree, "Optional Inputs", "Optional Inputs",NULL,"OptInputType"); Schedule","Optional Inputs" ,"OptInputType");
ProUITreeNodeTypeFree(Treedata);

and the tree gave me some trash data....

 

[williaps]

Did you ever get your tree working? I am having an issue where my tree doesn't display the expand/collapse icons next to each node. Do you have a working example that you could share with me?