🚀 go-pugleaf

The user selects a directory, and my application searches that directory 
for sub directories and then lists them in RichEdit with full path. For 
searching directories I use FindFirstFile()and FindNextFile(). My 
problem is that I want to use TreeView instead of RichEdit but I don't 
know how add this directories to TreeView to show them like Windows 
Explorer does.

For example when I select c:\ to search for sub directories

My RichEdit displays directories like this

c:\
c:\Folder 1
c:\Folder 1\Folder 1.1
c:\Folder 1\Folder 1.2
c:\Folder 2
c:\Folder 2\Folder 2.1
c:\Folder 2\Folder 2.2
c:\Folder 3
c:\Folder 3\Folder 3.1
c:\Folder 3\Folder 3.2

I would like TreeView to show found directories like this:

- c:\
	- Folder 1
		Folder 1.2
		Folder 1.3
	- Folder 2
		Folder 2.1
		Folder 2.2	
	+ Folder 3	

My problem is the full path that is returned, I tried to extract the 
directories with SubString that searches for "\\" and then I delete 
everything before "\\" and after the next "\\" but I can't make it work. 
Is my approach ok? How should I do this?
Thanks in advance.