property Edit.SplitPaneWidth as Long
Specifies a value that indicates the width in pixels of the left pane(s) when splitting.

TypeDescription
Long A long expression that indicates the width in pixels of the left pane(s) when splitting.
By default, the SplitPaneWidth property is 0. Use the SplitPaneWidth property to split horizontally the edit control. Use the SplitPaneHeight property to split vertically the edit control. Use the AllowSplitter property to show or hide certain splitters. The SplitterChange event notifies your application when user splits the control.