--- a/Plugins/Engine/OrthancPlugins.h	Tue May 12 07:50:38 2020 +0200
+++ b/Plugins/Engine/OrthancPlugins.h	Tue May 12 14:58:24 2020 +0200
@@ -56,6 +56,7 @@
 #include "../../Core/DicomNetworking/IFindRequestHandlerFactory.h"
 #include "../../Core/DicomNetworking/IMoveRequestHandlerFactory.h"
 #include "../../Core/DicomNetworking/IWorklistRequestHandlerFactory.h"
+#include "../../Core/DicomParsing/MemoryBufferTranscoder.h"
 #include "../../Core/FileStorage/IStorageArea.h"
 #include "../../Core/HttpServer/IHttpHandler.h"
 #include "../../Core/HttpServer/IIncomingHttpRequestFilter.h"
@@ -82,7 +83,8 @@
     public IIncomingHttpRequestFilter,
     public IFindRequestHandlerFactory,
     public IMoveRequestHandlerFactory,
-    public IStorageCommitmentFactory
+    public IStorageCommitmentFactory,
+    public MemoryBufferTranscoder
   {
   private:
     class PImpl;
@@ -94,6 +96,10 @@
     class HttpClientChunkedRequest;
     class HttpClientChunkedAnswer;
     class HttpServerChunkedReader;
+    class IDicomInstance;
+    class DicomInstanceFromCallback;
+    class DicomInstanceFromBuffer;
+    class DicomInstanceFromTranscoded;
     
     void RegisterRestCallback(const void* parameters,
                               bool lock);
@@ -155,6 +161,12 @@
     void LookupResource(_OrthancPluginService service,
                         const void* parameters);
 
+    void AccessDicomInstance(_OrthancPluginService service,
+                             const void* parameters);
+    
+    void AccessDicomInstance2(_OrthancPluginService service,
+                              const void* parameters);
+    
     void SendHttpStatusCode(const void* parameters);
 
     void SendHttpStatus(const void* parameters);
@@ -223,6 +235,17 @@
                                 _OrthancPluginService service,
                                 const void* parameters);
 
+  protected:
+    // From "MemoryBufferTranscoder"
+    virtual bool Transcode(std::string& target,
+                           DicomTransferSyntax& sourceSyntax /* out */,
+                           DicomTransferSyntax& targetSyntax /* out */,
+                           bool& hasSopInstanceUidChanged /* out */,
+                           const void* buffer,
+                           size_t size,
+                           const std::set<DicomTransferSyntax>& allowedSyntaxes,
+                           bool allowNewSopInstanceUid) ORTHANC_OVERRIDE;
+    
   public:
     OrthancPlugins();
 
@@ -250,7 +273,7 @@
     virtual void SignalChange(const ServerIndexChange& change) ORTHANC_OVERRIDE;
     
     virtual void SignalStoredInstance(const std::string& instanceId,
-                                      DicomInstanceToStore& instance,
+                                      const DicomInstanceToStore& instance,
                                       const Json::Value& simplifiedTags) ORTHANC_OVERRIDE;
 
     virtual bool FilterIncomingInstance(const DicomInstanceToStore& instance,