1 files changed, 10 insertions, 2 deletions

diff --git a/source/StringCompression.h b/source/StringCompression.h
index 5afd4c37f..8afdf59e0 100644
--- a/source/StringCompression.h
+++ b/source/StringCompression.h
@@ -3,15 +3,23 @@
 
 // Interfaces to the wrapping functions for compression and decompression using AString as their data
 
+#include "zlib.h"  // Needed for the Z_XXX return values
 
 
 
-/// Compresses a_Data into a_Compressed; return Z_XXX error constants same as zlib's compress2()
+
+
+/// Compresses a_Data into a_Compressed using ZLIB; returns Z_XXX error constants same as zlib's compress2()
 extern int CompressString(const char * a_Data, int a_Length, AString & a_Compressed);
 
-/// Uncompresses a_Data into a_Decompressed; returns Z_XXX error constants same as zlib's decompress()
+/// Uncompresses a_Data into a_Uncompressed; returns Z_XXX error constants same as zlib's decompress()
 extern int UncompressString(const char * a_Data, int a_Length, AString & a_Uncompressed, int a_UncompressedSize);
 
+/// Compresses a_Data into a_Compressed using GZIP; returns Z_OK for success or Z_XXX error constants same as zlib
+extern int CompressStringGZIP(const char * a_Data, int a_Length, AString & a_Compressed);
+
+/// Uncompresses a_Data into a_Uncompressed using GZIP; returns Z_OK for success or Z_XXX error constants same as zlib
+extern int UncompressStringGZIP(const char * a_Data, int a_Length, AString & a_Uncompressed);