Function to get MonoReflectionMethod and unbox a MonoObject

Cheat Engine/MonoDataCollector/MonoDataCollector/PipeServer.cpp

@@ -505,6 +505,7 @@ void CPipeServer::InitMono()
 				mono_type_get_name = (MONO_TYPE_GET_NAME)GetProcAddress(hMono, "il2cpp_type_get_name");
 				mono_type_get_type = (MONO_TYPE_GET_TYPE)GetProcAddress(hMono, "il2cpp_type_get_type");
 				il2cpp_type_get_object = (IL2CPP_TYPE_GET_OBJECT)GetProcAddress(hMono, "il2cpp_type_get_object");
+				il2cpp_method_get_object = (IL2CPP_METHOD_GET_OBJECT)GetProcAddress(hMono, "il2cpp_method_get_object");
 				mono_type_get_name_full = (MONO_TYPE_GET_NAME_FULL)GetProcAddress(hMono, "il2cpp_type_get_name_full");
 
 				mono_method_get_name = (MONO_METHOD_GET_NAME)GetProcAddress(hMono, "il2cpp_method_get_name");
@@ -663,6 +664,7 @@ void CPipeServer::InitMono()
 				mono_type_get_name = (MONO_TYPE_GET_NAME)GetProcAddress(hMono, "mono_type_get_name");
 				mono_type_get_type = (MONO_TYPE_GET_TYPE)GetProcAddress(hMono, "mono_type_get_type");
 				mono_type_get_object = (MONO_TYPE_GET_OBJECT)GetProcAddress(hMono, "mono_type_get_object");
+				mono_method_get_object = (MONO_METHOD_GET_OBJECT)GetProcAddress(hMono, "mono_method_get_object");
 				mono_type_get_name_full = (MONO_TYPE_GET_NAME_FULL)GetProcAddress(hMono, "mono_type_get_name_full");
 
 				mono_method_get_name = (MONO_METHOD_GET_NAME)GetProcAddress(hMono, "mono_method_get_name");
@@ -1849,6 +1851,35 @@ void CPipeServer::GetReflectionTypeOfClassType()
 	}
 }
 
+void CPipeServer::GetReflectionMethodOfMethod()
+{
+	//returns MonoReflectionMethod* equavalent of MonoMethodInfo (C#)
+	void* method = (void*)ReadQword(); //MonoMethod*
+	void* klass = (void*)ReadQword(); //MonoClass*
+
+	try
+	{
+		if (il2cpp && il2cpp_method_get_object)
+			WriteQword((UINT64)il2cpp_method_get_object(method, klass));
+		else if (mono_method_get_object)
+			WriteQword((UINT64)mono_method_get_object(domain, method, klass));
+		else
+			WriteQword(0);
+	}
+	catch (...)
+	{
+		OutputDebugString("error at GetReflectionMethodOfMethod");
+		WriteQword(0);
+	}
+}
+
+void CPipeServer::UnBoxMonoObject()
+{
+	void* object = (void*)ReadQword();
+	WriteQword(object ? (UINT64)mono_object_unbox(object) : 0);
+	OutputDebugString("Unbox Object Called");
+}
+
 
 void CPipeServer::GetVTableFromClass(void)
 {
@@ -2988,7 +3019,14 @@ void CPipeServer::Start(void)
 				case MONOCMD_GETREFLECTIONTYPEOFCLASSTYPE:
 					GetReflectionTypeOfClassType();
 					break;
+
+				case MONOCMD_GETREFLECTIONMETHODOFMONOMETHOD:
+					GetReflectionMethodOfMethod();
+					break;
 
+				case MONOCMD_MONOOBJECTUNBOX:
+					UnBoxMonoObject();
+					break;
 
 				case MONOCMD_FREE:
 					FreeObject();

Cheat Engine/MonoDataCollector/MonoDataCollector/PipeServer.h

@@ -7,7 +7,7 @@
 
 
                                 //yyyymmdd
-#define MONO_DATACOLLECTORVERSION 20230409 
+#define MONO_DATACOLLECTORVERSION 20230512 
 
 #define MONO_TYPE_NAME_FORMAT_IL  0
 #define MONO_TYPE_NAME_FORMAT_REFLECTION  1
@@ -73,7 +73,9 @@
 #define MONOCMD_GETCLASSTYPE 55
 #define MONOCMD_GETCLASSOFTYPE 56
 #define MONOCMD_GETTYPEOFMONOTYPE 57
-#define MONOCMD_GETREFLECTIONTYPEOFCLASSTYPE 58					 
+#define MONOCMD_GETREFLECTIONTYPEOFCLASSTYPE 58
+#define MONOCMD_GETREFLECTIONMETHODOFMONOMETHOD 59
+#define MONOCMD_MONOOBJECTUNBOX 60
 
 
 typedef struct {} MonoType;
@@ -146,6 +148,8 @@ typedef void* (__cdecl* MONO_TYPE_GET_CLASS)(void* type);
 typedef int (__cdecl *MONO_TYPE_GET_TYPE)(void *type);
 typedef void* (__cdecl *MONO_TYPE_GET_OBJECT)(void *domain, void *type);
 typedef void* (__cdecl *IL2CPP_TYPE_GET_OBJECT)(void *type);
+typedef void* (__cdecl *MONO_METHOD_GET_OBJECT)(void *domain, void *method, void* klass);
+typedef void* (__cdecl *IL2CPP_METHOD_GET_OBJECT)(void* method, void* klass);
 
 
 typedef char* (__cdecl *MONO_TYPE_GET_NAME_FULL)(void *type, int format);
@@ -321,6 +325,8 @@ class CPipeServer : Pipe
 	MONO_TYPE_GET_TYPE mono_type_get_type;
 	MONO_TYPE_GET_OBJECT mono_type_get_object; //return a ReflectionType* object
 	IL2CPP_TYPE_GET_OBJECT il2cpp_type_get_object;
+	MONO_METHOD_GET_OBJECT mono_method_get_object;
+	IL2CPP_METHOD_GET_OBJECT il2cpp_method_get_object;
 	MONO_TYPE_IS_STRUCT mono_type_is_struct;
 	MONO_TYPE_GET_CLASS mono_type_get_class;													  
 	MONO_TYPE_GET_NAME_FULL mono_type_get_name_full;
@@ -453,6 +459,8 @@ class CPipeServer : Pipe
 	void GetClassOfType();
 	void GetTypeOfMonoType();
 	void GetReflectionTypeOfClassType();
+	void GetReflectionMethodOfMethod();
+	void UnBoxMonoObject();
 	void GetVTableFromClass();
 	void GetStaticFieldAddressFromClass();
 	void GetTypeClass();

Cheat Engine/bin/autorun/monoscript.lua

@@ -21,7 +21,7 @@ local dpiscale=getScreenDPI()/96
 
 mono_timeout=0 --change to 0 to never timeout (meaning: 0 will freeze your face off if it breaks on a breakpoint, just saying ...)
 
-MONO_DATACOLLECTORVERSION=20230409
+MONO_DATACOLLECTORVERSION=20230512
 
 MONOCMD_INITMONO=0
 MONOCMD_OBJECT_GETCLASS=1
@@ -85,6 +85,8 @@ MONOCMD_GETCLASSTYPE = 55
 MONOCMD_GETCLASSOFTYPE = 56
 MONOCMD_GETTYPEOFMONOTYPE = 57
 MONOCMD_GETREFLECTIONTYPEOFCLASSTYPE = 58
+MONOCMD_GETREFLECTIONMETHODOFMONOMETHOD = 59
+MONOCMD_MONOOBJECTUNBOX = 60
 
 MONO_TYPE_END        = 0x00       -- End of List
 MONO_TYPE_VOID       = 0x01
@@ -146,6 +148,7 @@ monoTypeToVartypeLookup[MONO_TYPE_FNPTR]=vtPointer
 monoTypeToVartypeLookup[MONO_TYPE_GENERICINST]=vtPointer
 monoTypeToVartypeLookup[MONO_TYPE_ARRAY]=vtPointer
 monoTypeToVartypeLookup[MONO_TYPE_SZARRAY]=vtPointer
+monoTypeToVartypeLookup[MONO_TYPE_VALUETYPE]=vtPointer --needed for structs when returned by invoking a method( even though they are not qwords)
 
 monoTypeToCStringLookup={}
 monoTypeToCStringLookup[MONO_TYPE_END]='void'
@@ -1566,6 +1569,28 @@ function mono_classtype_get_reflectiontype(monotype)
   return retv
 end
 
+function mono_method_get_reflectiontype(method,klass)
+  assert(method,'Error: "method" was nil. It is supposed to be a MonoMethod*')
+  assert(klass,'Error: "klass" was nil. It is supposed to be a MonoClass*')
+  monopipe.lock()
+  monopipe.writeByte(MONOCMD_GETREFLECTIONMETHODOFMONOMETHOD)
+  monopipe.writeQword(method)
+  monopipe.writeQword(klass)
+  local retv = monopipe.readQword()
+  monopipe.unlock()
+  return retv
+end
+
+function mono_object_unbox(monoobject)
+  assert(monoobject,'Error: "monoobject" was nil. It is supposed to be a MonoObject*')
+  monopipe.lock()
+  monopipe.writeByte(MONOCMD_MONOOBJECTUNBOX)
+  monopipe.writeQword(monoobject)
+  local retv = monopipe.readQword()
+  monopipe.unlock()
+  return retv
+end
+
 function mono_class_getArrayElementClass(klass)
   --if debug_canBreak() then return nil end
 
@@ -2740,6 +2765,7 @@ end
 
 function mono_readObject()
   local vtype = monopipe.readByte()
+  --print(vtype)
   if vtype == MONO_TYPE_VOID then
     return monopipe.readQword()
   elseif vtype == MONO_TYPE_STRING then
@@ -3010,7 +3036,7 @@ function mono_invoke_method(domain, method, object, args)
   end
 
   local result=mono_readObject()
-
+  --print(type(result),result)
   if monopipe then
     monopipe.unlock()
     return result