using Syncfusion.WinForms.Controls;

namespace MyApplication
{
    public partial class Form1 : SfForm  // Change from Form to SfForm
    {
        public Form1()
        {
            InitializeComponent();
            
            // Basic customization
            this.Style.TitleBar.BackColor = Color.FromArgb(46, 46, 46);
            this.Style.TitleBar.ForeColor = Color.White;
        }
    }
}

Imports Syncfusion.WinForms.Controls

Public Class Form1
    Inherits SfForm  ' Change from Form to SfForm
    
    Public Sub New()
        InitializeComponent()
        
        ' Basic customization
        Me.Style.TitleBar.BackColor = Color.FromArgb(46, 46, 46)
        Me.Style.TitleBar.ForeColor = Color.White
    End Sub
End Class

// Title bar button colors
this.Style.TitleBar.CloseButtonForeColor = Color.White;
this.Style.TitleBar.MinimizeButtonForeColor = Color.White;
this.Style.TitleBar.MaximizeButtonForeColor = Color.White;

// Button hover colors
this.Style.TitleBar.CloseButtonHoverBackColor = Color.Red;
this.Style.TitleBar.MinimizeButtonHoverBackColor = Color.DarkGray;
this.Style.TitleBar.MaximizeButtonHoverBackColor = Color.DarkGray;

// Form border
this.Style.Border = new Pen(Color.FromArgb(0, 122, 204), 2);
this.Style.InactiveBorder = new Pen(Color.Gray, 2);

public Form1()
{
    InitializeComponent();
    
    // Dark title bar
    this.Style.TitleBar.BackColor = Color.FromArgb(30, 30, 30);
    this.Style.TitleBar.ForeColor = Color.White;
    this.Style.TitleBar.Height = 35;
    
    // Button styling
    this.Style.TitleBar.CloseButtonForeColor = Color.White;
    this.Style.TitleBar.CloseButtonHoverBackColor = Color.FromArgb(232, 17, 35);
    this.Style.TitleBar.MinimizeButtonForeColor = Color.White;
    this.Style.TitleBar.MaximizeButtonForeColor = Color.White;
    
    // Border and shadow
    this.Style.Border = new Pen(Color.FromArgb(0, 122, 204), 2);
    this.Style.ShadowOpacity = 150;
    
    // Client area
    this.Style.BackColor = Color.FromArgb(45, 45, 48);
}

public Form1()
{
    InitializeComponent();
    
    // Create search panel
    FlowLayoutPanel searchPanel = new FlowLayoutPanel();
    searchPanel.Size = new Size(250, 28);
    searchPanel.FlowDirection = FlowDirection.LeftToRight;
    
    // Add search label
    Label searchLabel = new Label();
    searchLabel.Text = "Search:";
    searchLabel.ForeColor = Color.White;
    searchLabel.AutoSize = true;
    searchLabel.Margin = new Padding(5, 5, 5, 0);
    
    // Add search textbox
    TextBox searchBox = new TextBox();
    searchBox.Width = 180;
    searchBox.Margin = new Padding(5, 2, 0, 0);
    
    searchPanel.Controls.Add(searchLabel);
    searchPanel.Controls.Add(searchBox);
    
    // Load to title bar
    this.TitleBarTextControl = searchPanel;
    
    // Style title bar
    this.Style.TitleBar.BackColor = Color.FromArgb(0, 120, 215);
    this.Style.TitleBar.Height = 35;
}

// Parent Form
public class MainForm : SfForm
{
    public MainForm()
    {
        InitializeComponent();
        
        // Enable MDI container
        this.IsMdiContainer = true;
        
        // Customize parent appearance
        this.Style.TitleBar.BackColor = Color.FromArgb(0, 122, 204);
        this.Style.TitleBar.ForeColor = Color.White;
    }
    
    private void CreateChildForm()
    {
        // Create child form
        SfForm childForm = new SfForm();
        childForm.Text = "Child Window 1";
        childForm.MdiParent = this;
        
        // Customize child appearance
        childForm.Style.TitleBar.BackColor = Color.White;
        childForm.Style.TitleBar.ForeColor = Color.Black;
        childForm.Style.Border = new Pen(Color.LightGray, 1);
        
        childForm.Show();
    }
}

// In Program.cs
static class Program
{
    [STAThread]
    static void Main()
    {
        // Register Syncfusion license
        Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("YOUR_LICENSE_KEY");
        
        // Load theme assemblies
        SfSkinManager.LoadAssembly(typeof(Office2016Theme).Assembly);
        SfSkinManager.LoadAssembly(typeof(Office2019Theme).Assembly);
        
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new Form1());
    }
}

// In Form
public Form1()
{
    InitializeComponent();
    
    // Apply theme
    this.ThemeName = "Office2016Colorful";
}

public Form1()
{
    // Set culture before initialization
    System.Threading.Thread.CurrentThread.CurrentCulture = 
        new System.Globalization.CultureInfo("de-DE");
    System.Threading.Thread.CurrentThread.CurrentUICulture = 
        new System.Globalization.CultureInfo("de-DE");
    
    InitializeComponent();
}