diff --git a/ComponentBasic/ComponentBasic.vcxproj b/ComponentBasic/ComponentBasic.vcxproj
index d8be6c4..a709a62 100644
--- a/ComponentBasic/ComponentBasic.vcxproj
+++ b/ComponentBasic/ComponentBasic.vcxproj
@@ -103,13 +103,13 @@
   <ItemGroup>
     <ClCompile Include="componentbasic.cpp" />
     <ClCompile Include="EntityDocks.cpp" />
-    <ClCompile Include="invisible_component.cpp" />
+    <ClCompile Include="InvisibleComponent.cpp" />
     <ClCompile Include="MapRoute.cpp" />
     <ClCompile Include="VisibleBox.cpp" />
     <ClInclude Include="componentbasic_global.h" />
     <ClInclude Include="componentbasic.h" />
     <QtMoc Include="EntityDocks.h" />
-    <ClInclude Include="invisible_component.h" />
+    <ClInclude Include="InvisibleComponent.h" />
     <ClInclude Include="MapRoute.h" />
     <ClInclude Include="VisibleBox.h" />
   </ItemGroup>
diff --git a/ComponentBasic/ComponentBasic.vcxproj.filters b/ComponentBasic/ComponentBasic.vcxproj.filters
index 111d8d7..b178bbb 100644
--- a/ComponentBasic/ComponentBasic.vcxproj.filters
+++ b/ComponentBasic/ComponentBasic.vcxproj.filters
@@ -35,7 +35,7 @@
     <ClInclude Include="MapRoute.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="invisible_component.h">
+    <ClInclude Include="InvisibleComponent.h">
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
@@ -52,7 +52,7 @@
     <ClCompile Include="componentbasic.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="invisible_component.cpp">
+    <ClCompile Include="InvisibleComponent.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
   </ItemGroup>
diff --git a/ComponentBasic/EntityDocks.cpp b/ComponentBasic/EntityDocks.cpp
index 04e52e9..c91a77f 100644
--- a/ComponentBasic/EntityDocks.cpp
+++ b/ComponentBasic/EntityDocks.cpp
@@ -44,7 +44,7 @@ void DeduceFramework::deduceBegin(std::shared_ptr<const DeduceRequest> ins)
 }
 
 #include <simsbasic.h>
-#include "invisible_component.h"
+#include "InvisibleComponent.h"
 DeduceFramework::DeduceFramework()
 	:_factory_ins(std::make_shared<ComponentFactory>()) {
 }
diff --git a/ComponentBasic/EntityDocks.h b/ComponentBasic/EntityDocks.h
index 9309f47..d01f44f 100644
--- a/ComponentBasic/EntityDocks.h
+++ b/ComponentBasic/EntityDocks.h
@@ -66,7 +66,7 @@ public:
 
 	DeduceFramework();
 
-	void init_backend();
+	void init_framework();
 
 	// ProcList interface =======================================================
 	std::shared_ptr<WsComponent> defaultNew() const override;
diff --git a/ComponentBasic/invisible_component.cpp b/ComponentBasic/InvisibleComponent.cpp
similarity index 80%
rename from ComponentBasic/invisible_component.cpp
rename to ComponentBasic/InvisibleComponent.cpp
index b4029e7..46889e2 100644
--- a/ComponentBasic/invisible_component.cpp
+++ b/ComponentBasic/InvisibleComponent.cpp
@@ -1,4 +1,4 @@
-#include "invisible_component.h"
+#include "InvisibleComponent.h"
 
 ComponentsInfoPull::ComponentsInfoPull() {}
 
@@ -40,10 +40,19 @@ void ComponentsInfoPull::execute(std::shared_ptr<Immediate> map,
 	out << rst;
 }
 
+#include <internal_impl.h>
 void ComponentsInfoPull::execute(std::shared_ptr<Immediate> map,
 	std::shared_ptr<const ProcedureSignatureQuery> in, QList<std::shared_ptr<ProcedureSignatureQueryResult>>& out)
 {
+	auto ent_ins = std::dynamic_pointer_cast<RtWsEntity>(this->_bind_entity.lock());
+	auto comps = ent_ins->components();
 
+	auto result = std::make_shared<ProcedureSignatureQueryResult>();
+	result->reset(in->targetEntity(), in->sourceEntity());
+	for (auto cp : comps) {
+		result->_signature_list.append(cp->signatureTypes());
+	}
+	out << result;
 }
 
 std::shared_ptr<WsComponent> ComponentsInfoPull::defaultNew() const
diff --git a/ComponentBasic/invisible_component.h b/ComponentBasic/InvisibleComponent.h
similarity index 100%
rename from ComponentBasic/invisible_component.h
rename to ComponentBasic/InvisibleComponent.h