+ """
+ SplitHorizontally(Window window1, Window window2, int sashPosition=0) -> bool
+
+ Initializes the top and bottom panes of the splitter window.
+
+ window1 The top pane.
+ window2 The bottom pane.
+ sashPosition The initial position of the sash. If this
+ value is positive, it specifies the size
+ of the upper pane. If it is negative, it
+ is absolute value gives the size of the
+ lower pane. Finally, specify 0 (default)
+ to choose the default position (half of
+ the total window height).
+
+ Returns True if successful, False otherwise (the window was
+ already split).
+
+ SplitHorizontally should be called if you wish to initially
+ view two panes. It can also be called at any subsequent
+ time, but the application should check that the window is
+ not currently split using IsSplit.
+ """