[Mwinapi-commits] SF.net SVN: mwinapi:[144] trunk/ManagedWinapi/Windows/SystemWindow.cs

[<zi...@us...>]

Revision: 144
          http://sourceforge.net/p/mwinapi/code/144
Author:   ziewer
Date:     2017-12-12 11:41:40 +0000 (Tue, 12 Dec 2017)
Log Message:
-----------
Error handling: Catch exception inside ClassName

Modified Paths:
--------------
    trunk/ManagedWinapi/Windows/SystemWindow.cs

Modified: trunk/ManagedWinapi/Windows/SystemWindow.cs
===================================================================
--- trunk/ManagedWinapi/Windows/SystemWindow.cs	2017-12-12 11:38:03 UTC (rev 143)
+++ trunk/ManagedWinapi/Windows/SystemWindow.cs	2017-12-12 11:41:40 UTC (rev 144)
@@ -543,17 +543,21 @@
         {
             get
             {
-                int length = 64;
-                while (true)
+                try
                 {
-                    StringBuilder sb = new StringBuilder(length);
-                    ApiHelper.FailIfZero(GetClassName(_hwnd, sb, sb.Capacity));
-                    if (sb.Length != length - 1)
+                    int length = 64;
+                    while (true)
                     {
-                        return sb.ToString();
+                        StringBuilder sb = new StringBuilder(length);
+                        ApiHelper.FailIfZero(GetClassName(_hwnd, sb, sb.Capacity));
+                        if (sb.Length != length - 1)
+                        {
+                            return sb.ToString();
+                        }
+                        length *= 2;
                     }
-                    length *= 2;
                 }
+                catch { return null; }
             }
         }
 

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