WindowTitleBar

WindowTitleBar is a layout for windows created with WindowChromeMode::Custom. It automatically contributes a draggable region and centers its children vertically.

Compose custom chrome

WindowTitleBar {
  Text("Studio"),
  Spacer(),
  Button("Run"),
  Button("Account"),
}.With(Spacing(8.0F), Padding(EdgeInsets::Symmetric(12.0F, 0.0F)))

Interactive descendants remain client controls and do not drag the window. The layout reserves platform- or framework-managed caption-control space through WindowTitleBarMetrics. Use UseWindow() when custom controls must invoke minimize, maximize, restore, toggle, or close.

Preserve desktop behavior

The component is meaningful when custom chrome is enabled in WindowOptions; system chrome remains the default. Give custom caption actions accessible labels and preserve a usable drag region.

API

• WindowTitleBar(std::vector<View>) and variadic child constructor.
• Inherits common layout modifiers.
• UseWindow() -> WindowHandle with Minimize, Maximize, Restore, ToggleMaximize, and Close.

See Window and system UI.