--- a/src/dmgrowbuf.c	Tue Jun 05 12:56:23 2018 +0300
+++ b/src/dmgrowbuf.c	Tue Jun 05 15:02:56 2018 +0300
@@ -308,3 +308,23 @@
             !dmGrowBufPutU8(buf, val & 0xff);
     }
 }
+
+
+BOOL dmGrowBufGetU8(DMGrowBuf *buf, Uint8 *value)
+{
+    if (buf->backwards && buf->offs > 0)
+    {
+        *value = buf->data[buf->offs];
+        buf->offs--;
+        return TRUE;
+    }
+    else
+    if (!buf->backwards && buf->offs < buf->len)
+    {
+        *value = buf->data[buf->offs];
+        buf->offs++;
+        return TRUE;
+    }
+
+    return FALSE;
+}