Menu Item

Build a MainMenu or ContextMenu exactly as usual, with BinaryMenuItem objects in place of MenuItem; every item draws itself, so there is no drawing code to write. Items can be nested, checked, radio-checked, disabled and given shortcuts as usual. A caption of "-" makes a separator.

Colours

The colours are shared by every item in the application and set on BinaryMenuItemManager: background, highlight, side bar, border, check mark, and the theme of the side bar. Each item takes a copy as it is created; after changing them, call BinaryMenuItemManager.PerformPaint with the form so that items already built pick up the change. PrepareCustomColorMatrix gives a single item colours of its own.

This class is in the .NET Framework edition only; the classic menu does not exist in .NET 6 and later.

using System;
using System.Drawing;
using System.Windows.Forms;
using Binarymission.WinForms.Controls.MenuControls;

public class InvoiceForm : Form
{
    public InvoiceForm()
    {
        BinaryMenuItemManager.MenuRenderingStyle = MenuRenderingStyle.OutlookBlueTheme;

        BinaryMenuItem file = new BinaryMenuItem("&File", null, false);
        file.MenuItems.Add(new BinaryMenuItem("Recent invoices", null, true));
        file.MenuItems.Add(new BinaryMenuItem("INV-20431 - Northwind", OnOpenRecent, false));
        file.MenuItems.Add(new BinaryMenuItem("-", null, false));
        file.MenuItems.Add(new BinaryMenuItem("&Save", OnSave, Shortcut.CtrlS, Properties.Resources.Save16, false));
        file.MenuItems.Add(new BinaryMenuItem("&Print...", OnPrint, Shortcut.CtrlP, Properties.Resources.Print16, false));

        Menu = new MainMenu(new MenuItem[] { file });
        BinaryMenuItemManager.PerformPaint(this);
    }

    private void OnOpenRecent(object sender, EventArgs e) { }
    private void OnSave(object sender, EventArgs e) { }
    private void OnPrint(object sender, EventArgs e) { }
}