Used by the framework for auto-outlining.
The value should be equal to one of the predefined constants. By default all collapsible nodes added by user has g_dwOBFComplete style.
- g_dwOBFComplete Collapsible node corresponds to block of text that can be hidden. All collapsible nodes should have this style. If the node was added automatically by outline parser, it means than the corresponding fragment of text is complete, i.e. includes both the start token and the end token.
- g_dwOBFLeft Special node represents the start marker of collapsible node. Nodes with such style can be added only by the framework for auto-outline processing. Node can contain user-defined data.
- g_dwOBFRight Special node represents the end marker of collapsible node. Nodes with such style can be added only by the framework for auto-outline processing. Node has no user-defined data.
