Let us start here, from square one. No, from Zero!

hooks/powrprof.cpp

@@ -0,0 +1,49 @@
+#include "powrprof.h"
+
+#include <windows.h>
+#include <powrprof.h>
+
+#include "util/detour.h"
+#include "util/logging.h"
+
+/*
+ * These hooks are required because Sound Voltex Exceed Gear sets `GUID_PROCESSOR_IDLE_DISABLE` to
+ * minimize CPU idle downclocking. While this may be good for cab use, it causes unnecessary power
+ * usage, battery drain on laptops, and requires a manual `powercfg` command to fix later on, which
+ * is annoying.
+ */
+
+//static decltype(PowerGetActiveScheme) *PowerGetActiveScheme_orig = nullptr;
+//static decltype(PowerSetActiveScheme) *PowerSetActiveScheme_orig = nullptr;
+//static decltype(PowerWriteACValueIndex) *PowerWriteACValueIndex_orig = nullptr;
+
+static DWORD WINAPI PowerGetActiveScheme_hook(HKEY UserRootPowerKey, GUID **ActivePolicyGuid) {
+
+    // stubbed
+    return ERROR_SUCCESS;
+}
+
+static DWORD WINAPI PowerSetActiveScheme_hook(HKEY UserRootPowerKey, const GUID *SchemeGuid) {
+
+    // stubbed
+    return ERROR_SUCCESS;
+}
+
+static DWORD WINAPI PowerWriteACValueIndex_hook(
+        HKEY RootPowerKey,
+        const GUID *SchemeGuid,
+        const GUID *SubGroupOfPowerSettingsGuid,
+        const GUID *PowerSettingGuid,
+        DWORD AcValueIndex)
+{
+    // stubbed
+    return ERROR_SUCCESS;
+}
+
+void powrprof_hook_init(HMODULE module) {
+    log_info("powrprof", "initializing");
+
+    detour::iat_try("PowerGetActiveScheme", &PowerGetActiveScheme_hook, module);
+    detour::iat_try("PowerSetActiveScheme", &PowerSetActiveScheme_hook, module);
+    detour::iat_try("PowerWriteACValueIndex", &PowerWriteACValueIndex_hook, module);
+}