C＃：是否有可能從program.cs中的資源圖像創建一個位圖？

Question

在我的應用程序中，我想創建一個位圖來繪製，然後在多個窗體上顯示它。我需要集中協調位圖的更新，所以我想根據計時器從MAIN那裏做到這一點。位圖將在創建時重新調整到屏幕的全尺寸大小。這是否是這種造成異常的調整嘗試？

的代碼看起來不錯，和VS不抱怨，直到我試圖調試，然後拋出一個「參數是不是在其中創建位圖線有效」例外。

我有選擇性地壓縮我下面的代碼：

using System; 
using System.Windows.Forms; 
using System.IO; 
using System.Timers; 
using System.Drawing; 
using System.Reflection; 

namespace MyProgram 
{ 
    /// <summary> 
    /// Class with program entry point. 
    /// </summary> 
    internal sealed class Program 
    { 
    /// <summary> 
    /// Program entry point. 
    /// </summary> 
    /// 

    public struct Config { 
     public int Guns; 
     public int RedGunMin; 
     public int RedGunMax; 
     public int X; 
     public int Y; 
     public double PointRatio; 
    } 

    public static Config TC; 

    public static int OffsetX = 0; 
    public static int OffsetY = 0; 
    public static int Offset = 0; 
    public static int FirstPass = 0; 

    public static int XC = 0; 
    public static int YC = 0; 

    public static int RedVal = 0; 
    public static int GreenVal = 0; 
    public static int BlueVal = 0; 

    //Set up the random number seed 
    public static Random rand = new Random(); 

    //Create a bitmap object (from the image in the resource file) 
    //***** The following line of code (70) generates the error: ***** 
    public static System.Drawing.Bitmap myBitMap = new Bitmap(MyProgram.Resource1.Black600x600,Screen.PrimaryScreen.Bounds.X, Screen.PrimaryScreen.Bounds.Y); 

    private static System.Timers.Timer myTimer; 

    [STAThread] 
    private static void Main(string[] args) 
    { 
     Application.EnableVisualStyles(); 
     Application.SetCompatibleTextRenderingDefault(false); 


     if (args.Length > 0) 
     { 
      string firstArgument = args[0].ToLower().Trim(); 

      if (firstArgument == "/c")   // Configuration mode 
      { 
       // TODO 
      } 
      else //(firstArgument == "/s")  Full-screen mode, and default mode 
      { 
       //Read the config file 
       string strDocFolder; 
       TileConfig TC = new TileConfig(); 

       strDocFolder = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments); 

       //Check to see if the INI file exists 
       if (File.Exists(strDocFolder + "\\TileConfig.ini")) 
       { 
        //Read the configuration out of the file 
        TextReader TR = new StreamReader(strDocFolder + "\\TileConfig.ini"); 

        TC.Guns = Convert.ToInt32(TR.ReadLine()); 
        TC.RedGunMin = Convert.ToInt32(TR.ReadLine()); 
        TC.RedGunMax = Convert.ToInt32(TR.ReadLine()); 
        TC.X = Convert.ToInt32(TR.ReadLine()); 
        TC.Y = Convert.ToInt32(TR.ReadLine()); 
        TC.PointRatio = Convert.ToDouble(TR.ReadLine()); 

        TR.Dispose(); 
       } 
       else 
       { 
        //File does not exist, assign default values 
        TC.Guns = 3; 
        TC.RedGunMin = 0; 
        TC.RedGunMax = 255; 
        TC.X = 4; 
        TC.Y = 3; 
        TC.PointRatio = 0.10; 
       } 

       //Choose initial color 
       RedVal = rand.Next(0, 255); 

       ShowScreen(); 

       myTimer.Start(); 

       Application.Run(); 
      } 
     } 

    } 

當我異常詳細信息複製到剪貼板，這是我所得到的：

System.TypeInitializationException was unhandled 
HResult=-2146233036 
Message=The type initializer for 'MyProgram.Program' threw an exception. 
Source=MyProgram 
TypeName=MyProgram.Program 
StackTrace: 
     at MyProgram.Program.Main(String[] args) 
     at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args) 
     at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args) 
     at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly() 
     at System.Threading.ThreadHelper.ThreadStart_Context(Object state) 
     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx) 
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) 
     at System.Threading.ThreadHelper.ThreadStart() 
InnerException: System.ArgumentException 
    HResult=-2147024809 
    Message=Parameter is not valid. 
    Source=System.Drawing 
    StackTrace: 
      at System.Drawing.Bitmap..ctor(Int32 width, Int32 height, PixelFormat format) 
      at System.Drawing.Bitmap..ctor(Image original, Int32 width, Int32 height) 
      at MyProgram.Program..cctor() in C:\Users\Randy\Documents\SharpDevelop Projects\MyProgram\MyProgram\Program.cs:line 70 
    InnerException: 

感謝您能提供任何援助。你們是最棒的，我真的很欣賞你們所有人的幫助！

Answer 1

明確異常詳細信息表明，要調用Bitmap構造函數，預計width和height，而你是通過座標 - Screen.PrimaryScreen.Bounds.X和Screen.PrimaryScreen.Bounds.Y，這極有可能是0，因此非有效大小。

如果您的目的是創建一個具有屏幕大小的位圖，請改爲使用Screen.PrimaryScreen.Bounds.Width和Screen.PrimaryScreen.Bounds.Height。或接受Size並通過Screen.PrimaryScreen.Bounds.Size的overload。