啟動(dòng)畫面是程序啟動(dòng)加載組件時(shí)一個(gè)讓用戶稍微耐心等待的提示框。一個(gè)好的軟件在有啟動(dòng)等待需求時(shí)必定做一個(gè)啟動(dòng)畫面。啟動(dòng)畫面可以讓用戶有心理準(zhǔn)備來接受程序加載的緩慢，還可以讓用戶知道加載的進(jìn)度和內(nèi)容。本文只是記錄最簡(jiǎn)單的構(gòu)架。

VS2010創(chuàng)建一個(gè)C# Windows窗體應(yīng)用程序，將主窗體改名為FormMain，再創(chuàng)建一個(gè)窗體起名為SplashScreen。向程序中加載一個(gè)圖片作為啟動(dòng)畫面，如下圖

然后編輯SplashScreen.cs代碼

/// <summary> 
/// 啟動(dòng)畫面 
/// </summary> 
public partial class SplashScreen : Form 
{ 
 /// <summary> 
 /// 啟動(dòng)畫面本身 
 /// </summary> 
 static SplashScreen instance; 
 /// <summary> 
 /// 顯示的圖片 
 /// </summary> 
 Bitmap bitmap; 
 public static SplashScreen Instance 
 { 
  get 
  { 
   return instance; 
  } 
  set 
  { 
   instance = value; 
  } 
 } 
 public SplashScreen() 
 { 
  InitializeComponent(); 
  // 設(shè)置窗體的類型 
  const string showInfo = "啟動(dòng)畫面：我們正在努力的加載程序，請(qǐng)稍后...";
  FormBorderStyle = FormBorderStyle.None; 
  StartPosition = FormStartPosition.CenterScreen; 
  ShowInTaskbar = false; 
  bitmap = new Bitmap(Properties.Resources.SplashScreen); 
  ClientSize = bitmap.Size; 
  using (Font font = new Font("Consoles", 10)) 
  { 
   using (Graphics g = Graphics.FromImage(bitmap))
   { 
    g.DrawString(showInfo, font, Brushes.White, 130, 100);
   } 
  } 
  BackgroundImage = bitmap; 
 } 
 protected override void Dispose(bool disposing)
 {
  if (disposing && (components != null)) 
  { 
   if (bitmap != null) 
   { 
    bitmap.Dispose(); 
    bitmap = null; 
   } 
   components.Dispose(); 
  } 
  base.Dispose(disposing); 
 } 
 public static void ShowSplashScreen()
 { 
  instance = new SplashScreen();
  instance.Show(); 
 } 
}

然后在主程序啟動(dòng)時(shí)調(diào)用

static class Program 
{ 
 /// <summary> 
 /// 應(yīng)用程序的主入口點(diǎn)。 
 /// </summary> 
 [STAThread] 
 static void Main() 
 { 
  Application.EnableVisualStyles(); 
  Application.SetCompatibleTextRenderingDefault(false);
  // 啟動(dòng) 
  SplashScreen.ShowSplashScreen(); 
  // 進(jìn)行自己的操作：加載組件，加載文件等等 
  // 示例代碼為休眠一會(huì) 
  System.Threading.Thread.Sleep(3000); 
  // 關(guān)閉 
  if (SplashScreen.Instance != null) 
  { 
   SplashScreen.Instance.BeginInvoke(new MethodInvoker(SplashScreen.Instance.Dispose));
   SplashScreen.Instance = null; 
  } 
  Application.Run(new FormMain()); 
 } 
}

效果如下圖所示：