1 files changed, 44 insertions, 0 deletions
diff --git a/NorthstarDLL/hookutils.cpp b/NorthstarDLL/hookutils.cpp
new file mode 100644
index 00000000..f5df3996
--- /dev/null
+++ b/NorthstarDLL/hookutils.cpp
@@ -0,0 +1,44 @@
+#include "pch.h"
+#include "hookutils.h"
+
+#include <iostream>
+
+void HookEnabler::CreateHook(LPVOID ppTarget, LPVOID ppDetour, LPVOID* ppOriginal, const char* targetName)
+{
+	// the macro for this uses ppTarget's name as targetName, and this typically starts with &
+	// targetname is used for debug stuff and debug output is nicer if we don't have this
+	if (*targetName == '&')
+		targetName++;
+
+	if (MH_CreateHook(ppTarget, ppDetour, ppOriginal) == MH_OK)
+	{
+		HookTarget* target = new HookTarget;
+		target->targetAddress = ppTarget;
+		target->targetName = (char*)targetName;
+
+		m_hookTargets.push_back(target);
+	}
+	else
+	{
+		if (targetName != nullptr)
+			spdlog::error("MH_CreateHook failed for function {}", targetName);
+		else
+			spdlog::error("MH_CreateHook failed for unknown function");
+	}
+}
+
+HookEnabler::~HookEnabler()
+{
+	for (auto& hook : m_hookTargets)
+	{
+		if (MH_EnableHook(hook->targetAddress) != MH_OK)
+		{
+			if (hook->targetName != nullptr)
+				spdlog::error("MH_EnableHook failed for function {}", hook->targetName);
+			else
+				spdlog::error("MH_EnableHook failed for unknown function");
+		}
+		else
+			spdlog::info("Enabling hook {}", hook->targetName);
+	}
+}
+\ No newline at end of file