- moved all files to a "source" subdirectory to tidy up the GitHub project page

- started to write a readme.md

source/ChanSort/InfoBox.cs

@@ -0,0 +1,37 @@
+using System.Windows.Forms;
+using DevExpress.XtraEditors;
+
+namespace ChanSort.Ui
+{
+  public partial class InfoBox : XtraForm
+  {
+    public InfoBox()
+    {
+      InitializeComponent();
+      this.ActiveControl = this.simpleButton1;
+    }
+
+    public static void Show(IWin32Window owner, string message, string caption)
+    {
+      if (string.IsNullOrEmpty(message))
+        return;
+      var box = new InfoBox();
+      box.Text = caption;
+      box.txtMessage.Text = message;
+      box.txtMessage.Properties.ReadOnly = true;
+      box.txtMessage.SelectionStart = 0;
+      box.txtMessage.SelectionLength = 0;
+      box.ShowDialog(owner);
+    }
+
+    protected override bool ProcessDialogKey(Keys keyData)
+    {
+      if (keyData == Keys.Escape)
+      {
+        this.DialogResult = DialogResult.Cancel;
+        return true;
+      }
+      return base.ProcessDialogKey(keyData);
+    }
+  }
+}