1  using System;               // STAThread
   2  using System.Windows.Forms; // Application and MessageBox objects
   3  using System.Drawing;       // Color
   4  using System.Threading;     // Mutex
   5  
   6  namespace standardApplications
   7  {
   8      static class Program
   9      {
  10  
  11          // the main entry point for the application
  12          // STA means single thread apartment
  13          [STAThread]
  14          static void Main()
  15          {
  16              bool ownsMutex;
  17              Mutex myMutex = null;
  18              try
  19              {
  20                  // Mutex constructor sets ownsMutex to false if mutex already exists,
  21                  //    or to true if a new mutex was just created
  22                  myMutex = new Mutex(false, Application.ProductName, out ownsMutex);
  23                  if (!ownsMutex)
  24                  {
  25                      MessageBox.Show
  26                          (
  27                             Application.ProductName + " is already running."
  28                          );
  29                      return; // do not allow this program to run twice
  30                  }
  31                  GC.KeepAlive(myMutex);
  32  
  33                  Application.EnableVisualStyles();
  34                  Application.Run(new Form1());
  35              }
  36              catch (Exception ex)
  37              {
  38                  MessageBox.Show(ex.Message.ToString() +
  39                      "\r\n\r\nThis application will close.");
  40                  foreach (Form frm in Application.OpenForms) frm.Close();
  41              }
  42              finally
  43              {
  44                  // be sure and release Mutex before program exits
  45                  if (myMutex != null) myMutex.Close();
  46                  Application.Exit();
  47              }
  48          }
  49  
  50  
  51  // ------------------- public properties ----------------
  52  
  53  
  54          // shortened product version for display in menus or window titles
  55          public static string VersionShort
  56          {
  57              get
  58              {
  59                  string stringMe = "Model.VersionShort: ";
  60                  try
  61                  {
  62                      string[] s = Application.ProductVersion.Split('.');
  63                      string myStr = s[0] + "." + s[1];
  64                      return myStr;
  65                  }
  66                  catch (Exception ex)
  67                  { 
  68                      throw new Exception(stringMe + ex.Message);
  69                  }
  70              }
  71              set { ; }
  72          }
  73  
  74  
  75          public static int Form1Height
  76          {
  77              get { return Properties.Settings.Default.Form1Height; }
  78              set
  79              {
  80                  Properties.Settings.Default.Form1Height = value;
  81                  Properties.Settings.Default.Save();
  82              }
  83          }
  84  
  85  
  86          public static int Form1Width
  87          {
  88              get { return Properties.Settings.Default.Form1Width; }
  89              set
  90              {
  91                  Properties.Settings.Default.Form1Width = value;
  92                  Properties.Settings.Default.Save();
  93              }
  94          }
  95  
  96  
  97          public static int Form1Top
  98          {
  99              get { return Properties.Settings.Default.Form1Top; }
 100              set
 101              {
 102                  Properties.Settings.Default.Form1Top = value;
 103                  Properties.Settings.Default.Save();
 104              }
 105          }
 106  
 107  
 108          public static int Form1Left
 109          {
 110              get { return Properties.Settings.Default.Form1Left; }
 111              set
 112              {
 113                  Properties.Settings.Default.Form1Left = value;
 114                  Properties.Settings.Default.Save();
 115              }
 116          }
 117  
 118  
 119          public static bool Form1Maximized
 120          {
 121              get { return Properties.Settings.Default.Form1Maximized; }
 122              set
 123              {
 124                  Properties.Settings.Default.Form1Maximized = value;
 125                  Properties.Settings.Default.Save();
 126              }
 127          }
 128  
 129  
 130          public static Color Form1Backcolor
 131          {
 132              get { return Properties.Settings.Default.Form1Backcolor; }
 133              set
 134              {
 135                  Properties.Settings.Default.Form1Backcolor = value;
 136                  Properties.Settings.Default.Save();
 137              }
 138          }
 139  
 140  
 141      }
 142  }