I am confused a little bit:
with a code like this: lets assume the list box is inside a panel and panel is inside a tableLayout and,etc…
Point myLocation = PointToClient(myListBox.Location);
so it returns a Point.X and Point.Y, but what are these X and Y ? are they X and Y of the Top,Left corner of my list box according to the whole form?
Yes,
Location.X = LeftandLocation.Y = Top.LeftandTopare just shortcuts provided for convenience.