SetTempPath.diff

diff --git a/src/SQLite.cs b/src/SQLite.cs
index be550e8..164e313 100644
--- a/src/SQLite.cs
+++ b/src/SQLite.cs
@@ -2417,6 +2417,9 @@ namespace SQLite
 
 		[DllImport("sqlite3", EntryPoint = "sqlite3_config", CallingConvention=CallingConvention.Cdecl)]
 		public static extern Result Config (ConfigOption option);
+		
+		[DllImport("sqlite3", EntryPoint = "sqlite3_win32_set_directory", CallingConvention=CallingConvention.Cdecl, CharSet=CharSet.Unicode)]
+		public static extern int SetDirectory (uint directoryType, string directoryPath);
 
 		[DllImport("sqlite3", EntryPoint = "sqlite3_busy_timeout", CallingConvention=CallingConvention.Cdecl)]
 		public static extern Result BusyTimeout (IntPtr db, int milliseconds);