DockSplitter

DockSplitter is an internal class within the AcrylicUI docking framework that represents the draggable divider displayed between adjacent DockRegions.

Usage

Developers do not interact directly with DockSplitter. The DockPanel and its DockRegions automatically create and manage the necessary DockSplitter instances based on the layout of the regions.

• When two dock regions (e.g., Left and Document, or Document and Bottom) are adjacent and visible, a DockSplitter is typically displayed between them.
• The DockPanel.DockResizeFilter (which must be added to Application.MessageFilters) monitors mouse events over these splitters.
• When a user clicks and drags a DockSplitter, the filter initiates a resize operation, adjusting the sizes of the adjacent DockRegions.

Key Functionality (Internal)

• Represents a specific edge (Left, Right, Top, Bottom) between two DockRegions.
• Calculates its screen bounds for drawing and hit-testing.
• Provides properties (Target, ResizeTarget) indicating which DockRegions it affects.
• Used by DockPanel.DockResizeFilter to detect mouse interaction and manage resize operations.

---

See also: DockPanel, DockRegion