Public Class Form1

//using System.ComponentModel;
private void Form1_Load(object sender, EventArgs e)
{

//引用命名空间：using System.Drawing;using System.Drawing.Text;
InstalledFontCollection fonts = new InstalledFontCollection();
foreach (FontFamily family in fonts.Families)
    combFontName.Items.Add(family.Name);

const int BAND = 5;
const int MINWIDTH = 10;
const int MINHEIGHT = 10;

//引用命名空间　System.Runtime.InteropServices
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern IntPtr SendMessage(IntPtr hWnd, int wMsg, int wParam, int lParam);

public void Show(IWin32Window owner);

using System;
using System.Collections.Generic;
using System.Text;