Draggable Window

Draggable Window is a C++ UMG widget (UDraggableWindow) that wraps any child widget in a desktop-style frame. Drag from the title bar, resize from a corner grip, maximize to screen, and spawn windows at runtime from Blueprint or C++.

The plugin ships demo content under DraggableWindowUMG/ including DemoLevel, WBP_DraggableWindow, and WBP_DraggableWindowSampleHUD.

Architecture

flowchart TB
  subgraph runtime [Runtime]
    HUD[Your HUD / Player Controller]
    Create[Create Draggable Window]
    DW[UDraggableWindow / WBP child]
    Child[Any UUserWidget content]
  end
  subgraph layout [Required widget bindings]
    Title[WindowTitleBorderWidget]
    Canvas[ChildWidgetCanvas]
    Resize[ResizeAreaWidget optional]
  end
  HUD --> Create --> DW
  DW --> Child
  DW --> Title
  DW --> Canvas
  DW --> Resize

What is included

Item	Path	Purpose
Base widget class	`UDraggableWindow`	C++ parent for all draggable windows
Sample window	`WBP_DraggableWindow`	Designer subclass with title bar + resize grip
Sample HUD	`WBP_DraggableWindowSampleHUD`	Spawns a window with child content
Demo level	`DemoLevel`	Playable example
Child sample	`WBP_DraggableWindowSampleChildDefault`	Default content widget

Typical workflow

Getting started — enable the plugin and create a widget Blueprint parented to Draggable Window.
Customizing — wire WindowTitleBorderWidget, ChildWidgetCanvas, and ResizeAreaWidget.
Overview — spawn windows at runtime and combine with Web Browser UMG.
Widget reference — properties, events, and Blueprint nodes.

Shipped defaults (quick reference)

Setting	Default	Notes
Enable Drag	`true`	Drag from WindowTitleBorderWidget
Enable Resizing	`true`	Requires ResizeAreaWidget binding
Enable Maximizing	`true`	Requires resizing enabled
Drag Key	Left Mouse Button	Override in class defaults
Resize Min Width / Height	`640` / `480`	Pixel limits when resizing
Startup State	Default	Alternatives: Start Minimized, Start Maximized