--- a/Plugins/Include/orthanc/OrthancCPlugin.h	Sat Dec 08 11:54:14 2018 +0100
+++ b/Plugins/Include/orthanc/OrthancCPlugin.h	Sat Dec 08 20:59:37 2018 +0100
@@ -423,7 +423,8 @@
     _OrthancPluginService_CallHttpClient2 = 27,
     _OrthancPluginService_GenerateUuid = 28,
     _OrthancPluginService_RegisterPrivateDictionaryTag = 29,
-
+    _OrthancPluginService_AutodetectMimeType = 30,
+    
     /* Registration of callbacks */
     _OrthancPluginService_RegisterRestCallback = 1000,
     _OrthancPluginService_RegisterOnStoredInstanceCallback = 1001,
@@ -6468,6 +6469,45 @@
 
 
 
+  typedef struct
+  {
+    const char** result;
+    const char*  argument;
+  } _OrthancPluginRetrieveStaticString;
+
+  /**
+   * @brief Detect the MIME type of a file.
+   *
+   * This function returns the MIME type of a file by inspecting its extension.
+   * 
+   * @param context The Orthanc plugin context, as received by OrthancPluginInitialize().
+   * @param path Path to the file.
+   * @return The MIME type. This is a statically-allocated
+   * string, do not free it.
+   * @ingroup Toolbox
+   **/
+  ORTHANC_PLUGIN_INLINE const char* OrthancPluginAutodetectMimeType(
+    OrthancPluginContext*  context,
+    const char*            path)
+  {
+    const char* result = NULL;
+
+    _OrthancPluginRetrieveStaticString params;
+    params.result = &result;
+    params.argument = path;
+
+    if (context->InvokeService(context, _OrthancPluginService_AutodetectMimeType, &params) != OrthancPluginErrorCode_Success)
+    {
+      /* Error */
+      return NULL;
+    }
+    else
+    {
+      return result;
+    }
+  }
+
+
 #ifdef  __cplusplus
 }
 #endif