Added more code comments.

Added documentation for ICefResponseFilter, TCustomResponseFilter, TCefResponseFilterRef and TCefResponseFilterOwn

source/uCEFInterfaces.pas

@@ -6619,7 +6619,41 @@ type
   /// </remarks>
   ICefResponseFilter = interface(ICefBaseRefCounted)
     ['{5013BC3C-F1AE-407A-A571-A4C6B1D6831E}']
+    /// <summary>
+    /// Initialize the response filter. Will only be called a single time. The
+    /// filter will not be installed if this function returns false (0).
+    /// </summary>
     function InitFilter: Boolean;
+    /// <summary>
+    /// <para>Called to filter a chunk of data. Expected usage is as follows:</para>
+    /// <code>
+    ///  1. Read input data from |data_in| and set |data_in_read| to the number of
+    ///     bytes that were read up to a maximum of |data_in_size|. |data_in| will
+    ///     be NULL if |data_in_size| is zero.
+    ///  2. Write filtered output data to |data_out| and set |data_out_written| to
+    ///     the number of bytes that were written up to a maximum of
+    ///     |data_out_size|. If no output data was written then all data must be
+    ///     read from |data_in| (user must set |data_in_read| = |data_in_size|).
+    ///  3. Return RESPONSE_FILTER_DONE if all output data was written or
+    ///     RESPONSE_FILTER_NEED_MORE_DATA if output data is still pending.
+    /// </code>
+    /// <para>This function will be called repeatedly until the input buffer has been
+    /// fully read (user sets |data_in_read| = |data_in_size|) and there is no
+    /// more input data to filter (the resource response is complete). This
+    /// function may then be called an additional time with an NULL input buffer
+    /// if the user filled the output buffer (set |data_out_written| =
+    /// |data_out_size|) and returned RESPONSE_FILTER_NEED_MORE_DATA to indicate
+    /// that output data is still pending.</para>
+    /// <para>Calls to this function will stop when one of the following conditions is
+    /// met:</para>
+    /// <code>
+    ///  1. There is no more input data to filter (the resource response is
+    ///     complete) and the user sets |data_out_written| = 0 or returns
+    ///     RESPONSE_FILTER_DONE to indicate that all data has been written, or;
+    ///  2. The user returns RESPONSE_FILTER_ERROR to indicate an error.
+    /// </code>
+    /// <para>Do not keep a reference to the buffers passed to this function.</para>
+    /// </summary>
     function Filter(data_in: Pointer; data_in_size: NativeUInt; var data_in_read: NativeUInt; data_out: Pointer; data_out_size : NativeUInt; var data_out_written: NativeUInt): TCefResponseFilterStatus;
   end;