var root = AutomationElement.RootElement;
var window = UITree.Query(root).UsingTreeWalkerEngine()
    // Query 1.
    .FindChildren().Where()
        .Name().Contains("Microsoft Visual Studio")
        .And()
        .Type().Is(ControlType.Window)
    .Select().FirstResult()
    // Get the underlying automation element of query 1.
    .Element;

var titleBar = UITree.Query(window).UsingDefaultEngine()
    // Query 2
    .FindChildren().Where()
        .Type().Is(ControlType.TitleBar)
    .Select().FirstResult()
    // Get the underlying automation element of query 2.
    .Element;

var root = AutomationElement.RootElement;
var titleBar = UITree
    .Query(root).UsingTreeWalkerEngine()
    // Query 1.
    .FindChildren().Where()
        .Name().Contains("Microsoft Visual Studio")
        .And()
        .Type().Is(ControlType.Window)
    .Select().FirstResult()
        // Continue with another query using the first result of query 1.
        .Query().UsingDefaultEngine()
        // Query 2
        .FindChildren().Where()
            .Type().Is(ControlType.TitleBar)
        .Select().FirstResult()
    // Get the underlying automation element of query 2.
    .Element;

var root = AutomationElement.RootElement;
var window = UITree.Query(root).UsingTreeWalkerEngine()
    // Query 1.
    .FindChildren().Where()
        .Name().Contains("Microsoft Visual Studio")
        .And()
        .Type().Is(ControlType.Window)
    .Select().FirstResult();
// Execute using the 'Window' pattern.
window.Execute<WindowPattern>(p => p.SetWindowVisualState(WindowVisualState.Minimized));

var windows = UITree.Query(root).UsingTreeWalkerEngine()
    // Query 2.
    .FindChildren().Where()
        .Name().Contains("Microsoft Visual Studio")
        .And()
        .Type().Is(ControlType.Window)
    .Select().AllResults();
// Execute for all matched components using the 'Window' pattern.
windows.Execute<WindowPattern>(p => p.SetWindowVisualState(WindowVisualState.Minimized));