Sets the position of a sash. May adjust the positions of adjacent sashes
to ensure that positions are monotonically increasing. Sash positions
are further constrained to be between 0 and the total size of the
widget. Must be called after the UI has been drawn.
Sets the position of a sash. May adjust the positions of adjacent sashes to ensure that positions are monotonically increasing. Sash positions are further constrained to be between 0 and the total size of the widget. Must be called after the UI has been drawn.