As promised here is the next version.
- support for Ctrl and Shift while dragging and dropping.
With the Shift key, you can move items by changing the position in the tree, with the Ctrl key we perform a copy operation.
- handling the context menu when dropping the right mouse button on tree # 2 (Copy / Move)
- handling the context menu of tree # 2 (on the tree item/node: Rename / Delete / Add as child ; in the empty tree space: Add New As Root )
- there is a new method for the tree: InsertItem
As I did not integrate this method with HMG sources, we call it as a function: _InsertItem (ControlName, FormName, cValue, nInsertPos, [aImage], [Id]).
Now you can build a tree using the context menu.