From e767d690d104bf83b8efe28e338768aec3406bfc Mon Sep 17 00:00:00 2001
From: George Hazan <george.hazan@gmail.com>
Date: Thu, 7 Dec 2023 12:22:10 +0300
Subject: EventExists: a helper to check the hookable event's presence

---
 include/m_core.h                |   1 +
 libs/win32/mir_core.lib         | Bin 493794 -> 493990 bytes
 libs/win64/mir_core.lib         | Bin 499060 -> 499242 bytes
 src/mir_core/src/mir_core.def   |   1 +
 src/mir_core/src/mir_core64.def |   1 +
 src/mir_core/src/modules.cpp    |   9 +++++++++
 6 files changed, 12 insertions(+)

diff --git a/include/m_core.h b/include/m_core.h
index 6f2b88f631..d4fd0f197a 100644
--- a/include/m_core.h
+++ b/include/m_core.h
@@ -109,6 +109,7 @@ typedef INT_PTR (*MIRANDASERVICEOBJPARAM)(void*, WPARAM, LPARAM, LPARAM);
 
 MIR_CORE_DLL(HANDLE)  CreateHookableEvent(const char *name);
 MIR_CORE_DLL(int)     DestroyHookableEvent(HANDLE hEvent);
+MIR_CORE_DLL(bool)    EventExists(const char *name);
 MIR_CORE_DLL(int)     SetHookDefaultForHookableEvent(HANDLE hEvent, MIRANDAHOOK pfnHook);
 MIR_CORE_DLL(int)     CallPluginEventHook(HINSTANCE hInst, const char *pszEvent, WPARAM wParam = 0, LPARAM lParam = 0);
 MIR_CORE_DLL(int)     CallObjectEventHook(void *pObject, HANDLE hEvent, WPARAM wParam = 0, LPARAM lParam = 0);
diff --git a/libs/win32/mir_core.lib b/libs/win32/mir_core.lib
index f8e046d131..6adf3dddb9 100644
Binary files a/libs/win32/mir_core.lib and b/libs/win32/mir_core.lib differ
diff --git a/libs/win64/mir_core.lib b/libs/win64/mir_core.lib
index 16cfc1e6f1..d0a67b237e 100644
Binary files a/libs/win64/mir_core.lib and b/libs/win64/mir_core.lib differ
diff --git a/src/mir_core/src/mir_core.def b/src/mir_core/src/mir_core.def
index 1b934ef47f..0d7894a5c5 100644
--- a/src/mir_core/src/mir_core.def
+++ b/src/mir_core/src/mir_core.def
@@ -1560,3 +1560,4 @@ db_event_updateId @1772
 ?GetPlugin@CDlgBase@@QBEPBVCMPluginBase@@XZ @1784 NONAME
 _TranslateW_UUID@8 @1785 NONAME
 ?Langpack_GetDefaultLocaleName@@YGPADXZ @1786 NONAME
+_EventExists@4 @1787 NONAME
diff --git a/src/mir_core/src/mir_core64.def b/src/mir_core/src/mir_core64.def
index 8007570bba..db7faf95a8 100644
--- a/src/mir_core/src/mir_core64.def
+++ b/src/mir_core/src/mir_core64.def
@@ -1560,3 +1560,4 @@ db_event_updateId @1772
 ?GetPlugin@CDlgBase@@QEBAPEBVCMPluginBase@@XZ @1784 NONAME
 TranslateW_UUID @1785 NONAME
 ?Langpack_GetDefaultLocaleName@@YAPEADXZ @1786 NONAME
+EventExists @1787 NONAME
diff --git a/src/mir_core/src/modules.cpp b/src/mir_core/src/modules.cpp
index 0d471c8c6c..e62f72a4be 100644
--- a/src/mir_core/src/modules.cpp
+++ b/src/mir_core/src/modules.cpp
@@ -102,6 +102,15 @@ static int QueueMainThread(PAPCFUNC pFunc, void* pParam, HANDLE hDoneEvent)
 ///////////////////////////////////////////////////////////////////////////////
 // HOOKS
 
+MIR_CORE_DLL(bool) EventExists(const char *name)
+{
+	if (name == nullptr)
+		return false;
+
+	mir_cslock lck(csHooks);
+	return hooks.getIndex((THook *)name) != -1;
+}
+
 MIR_CORE_DLL(HANDLE) CreateHookableEvent(const char *name)
 {
 	if (name == nullptr)
-- 
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