Get last error when LoadLibrary fails (dotnet#225)

yukiwongky · Sep 27, 2019 · d3f7577 · d3f7577
1 parent d8ccb74
commit d3f7577
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/Microsoft.Data.SqlClient/netfx/src/Microsoft/Data/Interop/SNINativeMethodWrapper.cs b/src/Microsoft.Data.SqlClient/netfx/src/Microsoft/Data/Interop/SNINativeMethodWrapper.cs
@@ -61,7 +61,8 @@ static SNINativeMethodWrapper()
             IntPtr pDll = LoadLibrary(localFolder + subfolder + SNI);
             if (pDll == IntPtr.Zero)
             {
-                throw new System.ComponentModel.Win32Exception("Failed to load " + localFolder + subfolder + SNI);
+                throw new System.ComponentModel.Win32Exception("Failed to load " + localFolder + subfolder + SNI,
+                    new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error()));
             }
         }
 
@@ -389,7 +390,7 @@ internal struct SNI_Error
         #endregion
 
         #region DLL Imports
-        [DllImport("kernel32.dll")]
+        [DllImport("kernel32.dll", SetLastError=true)]
         public static extern IntPtr LoadLibrary(string dllToLoad);
 
         [DllImport("secur32.dll", ExactSpelling = true, SetLastError = true)]