Window Manager

Basics

• Desktop icons open windows such as site-index.sys, Resume, Update Center, Reader, Presentation, and the app windows.
• Clicking a window brings it to the front.
• Titlebar buttons support close, minimize, and maximize / restore.
• Right-clicking a window opens a basic context menu with bring-to-front, minimize, maximize / restore, and close.

Multi-Instance

• Reader supports multi-instance windows keyed by the page path.
• Example: /docs/intro and /handbook/admin/guide can be open simultaneously.

Window Movement And Sizing

• Windows can be dragged by the titlebar.
• Dragging a window to the left or right screen edge snaps it to half width.
• Dragging a window to the top edge maximizes it.
• Windows can be resized from all four corners.
• Free-dragging is clamped so a window cannot be lost completely outside the visible workspace.

Desktop Interaction

• Clicking and dragging on empty desktop space draws a marquee selection box.
• Selected icons can be dragged as a group.
• Right-clicking the desktop opens a small context menu for icon deselection and layout reset.

Window Variants

• Resume and site-index.sys use XP-style chrome.
• Update Center uses a system-style chrome variant.
• Most other apps use the default shell chrome.