API Reference > ui-framework > ChildWindowManager > ChildWindowManager ChildWindowManager Class Beta Supports opening a child browser window from the main application window. The child window is managed by the main application and is running in the same security context. The application must deliver the html file iTwinPopup.html along side its index.html. See also: Child Window Manager Methods Name Description constructor(): ChildWindowManager closeAllChildWindows(): void Close all child/pop-out windows. closeChildWindow(childWindowId: string, processWindowClose: boolean = true): boolean findChildWindow(childWindowId: undefined | string): undefined | OpenChildWindowInfo findChildWindowId(contentWindow: undefined | | Window): undefined | string openChildWindow(childWindowId: string, title: string, content: ReactNode, location: ChildWindowLocationProps, useDefaultPopoutUrl?: boolean): boolean Properties Name Type Description openChildWindows Accessor ReadOnly OpenChildWindowInfo[] Defined in ui/framework/src/ui-framework/childwindow/ChildWindowManager.tsx Line 68 Last Updated: 29 November, 2022