# HG changeset patch
# User moel.mich
# Date 1286394610 0
# Node ID b5b076457b686f00e824ed3b9a858b8a37468493
# Parent  79e9a77f6a71840647f7837c2bff763d5dff30e1
Added more error checking to the T-Balancer enumeration code. This hopefully fixes an IndexOutOfRangeException in the TBalancerGroup constructor.

diff -r 79e9a77f6a71 -r b5b076457b68 Hardware/TBalancer/TBalancerGroup.cs
--- a/Hardware/TBalancer/TBalancerGroup.cs	Wed Oct 06 19:18:07 2010 +0000
+++ b/Hardware/TBalancer/TBalancerGroup.cs	Wed Oct 06 19:50:10 2010 +0000
@@ -51,14 +51,25 @@
 
       uint numDevices;
       try {
-        FTD2XX.FT_CreateDeviceInfoList(out numDevices);
+        if (FTD2XX.FT_CreateDeviceInfoList(out numDevices) != FT_STATUS.FT_OK) {
+          report.AppendLine("Status: FT_CreateDeviceInfoList failed");
+          return;
+        }
       } catch (DllNotFoundException) { return; } 
         catch (ArgumentNullException) { return; }
         catch (EntryPointNotFoundException) { return; }
         catch (BadImageFormatException) { return; }
      
       FT_DEVICE_INFO_NODE[] info = new FT_DEVICE_INFO_NODE[numDevices];
-      FTD2XX.FT_GetDeviceInfoList(info, ref numDevices);
+      if (FTD2XX.FT_GetDeviceInfoList(info, ref numDevices) != FT_STATUS.FT_OK) 
+      {
+        report.AppendLine("Status: FT_GetDeviceInfoList failed");        
+        return;
+      }
+
+      // make sure numDevices is not larger than the info array
+      if (numDevices > info.Length)
+        numDevices = (uint)info.Length;
 
       for (int i = 0; i < numDevices; i++) {
         report.Append("Device Index: ");