Hello,
I've just noticed in my program, where I have a Tree View and a Listbox directly beneath it, that even though they are numerically the same width, the Listbox appears to be a wee bit smaller than the Tree View. I think I could only attribute this to a difference in border sizes, but that seems a bit silly, as both were created with the (supposedly) same type of border, WS_EX_CLIENTEDGE. Does the Tree View have its own special thinner border, larger-than-normal client area, etc.?