indexing description: "Tree view style (TVS) constants." status: "See notice at end of class." date: "$Date$" revision: "$Revision$" class interface WEL_TVS_CONSTANTS feature -- Access Tvs_disabledragdrop: INTEGER is 16 -- Prevents the tree-view control from sending -- Tvn_begindrag notification messages. -- -- Declared in Windows as TVS_DISABLEDRAGDROP Tvs_editlabels: INTEGER is 8 -- Allows the user to edit the labels of tree-view -- items. -- -- Declared in Windows as TVS_EDITLABELS Tvs_hasbuttons: INTEGER is 1 -- Displays plus (+) and minus (-) buttons next to -- parent items. The user clicks the buttons to expand -- or collapse a parent item's list of child items. To -- include buttons with items at the root of the tree -- view, Tvs_linesatroot must also be specified. -- -- Declared in Windows as TVS_HASBUTTONS Tvs_haslines: INTEGER is 2 -- Uses lines to show the hierarchy of items. -- -- Declared in Windows as TVS_HASLINES Tvs_infotip: INTEGER is 2048 -- Declared in Windows as TVS_INFOTIP Tvs_linesatroot: INTEGER is 4 -- Uses lines to link items at the root of the -- tree-view control. This value is ignored if -- Tvs_haslines is not also specified. -- -- Declared in Windows as TVS_LINESATROOT Tvs_showselalways: INTEGER is 32 -- Causes a selected item to remain selected when the -- tree-view control loses focus. -- -- Declared in Windows as TVS_SHOWSELALWAYS invariant -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) end -- class WEL_TVS_CONSTANTS