Basically you need to work out what language you are trying to support from input locale etc. Then enum installed fonts looking for ones that have glyphs for that language. Read the book i'm real hazy on the details of all this and it may have changed anyway. Read MSDN April 2003 => Development (General) => Internationalization => SDK Documentation => International Text Display => Unicode and Character Sets GetTextCharsetInfo()

The problem was that after inserting each item, there was a call to Expand(), which caused the treeview to scroll to the newly expanded icon. This did not have any visible effect when the tree was being populated off-screen, but once I started doing this in a separate thread after showing the treeview, it was apparent in the tree jumping all over the place. It turns out (this is code I inherited from someone else at my company) that the proper thing to do, instead of calling Expand() after inserting each item, is to set the State bits (and the mask bits) in the TVINSERTSTRUCT before inserting the item, this causes it to be expanded when it is inserted, without the tree scrolling to it. Thanks anyway for your help.