-and the return value from that will be used for the minimum size. The
-wx.FIXED_MINSIZE flag was added that will cause the sizer to *not*
-call window methods to determine the new best size, instead the
-minsize that the window had when added to the sizer (or the size the
-window was created with) will always be used. When a window is added
-to a sizer it's initial size, if any, is set as the window's minimal
-size using SetSizeHints if there isn't already a minimal size. If you
-would like the sizer to use something other than the window's initial
-size as the minimum then you can give it a new minimum by calling its
-SetSizeHints method.
+and the return value from that will be used for the minimum size used
+by the sizer. The wx.FIXED_MINSIZE flag was added that will cause the
+sizer to use the old behaviour in that it will *not* call the window's
+methods to determine the new best size, instead the minsize that the
+window had when added to the sizer (or the size the window was created
+with) will always be used.
+
+Related to the above, when controls and some other window types are
+created either the size passed to the constructor, or their "best
+size" if an explicit size was not passed in, is set as the window's
+minimal size. For non top-level windows that hasn't meant much in the
+past, but now the sizers are sensitive to the window's minimal size.
+The key point to understand here is that it is no longer the window's
+size it has when added to the sizer that matters, but its minimal
+size. So you might have some issues to iron out if you create a
+control without a size and then set its size to something before
+adding it to the sizer. Since it's minimal size is probably not the
+size you set then the sizer will appear to be misbehaving. The fix is
+to either set the size when calling the window's constructor, or to
+reset the min size by calling SetSizeHints. You can call SetSizeHints
+at anytime to change the minsize of a window, just call the sizer's
+Layout method to redistribute the controls as needed.