From 5f8a454e3f45294194ea5f9627df11a75f52af7f Mon Sep 17 00:00:00 2001
From: Mr_Goldberg <gold@berg>
Date: Sat, 6 Feb 2021 22:38:51 -0500
Subject: [PATCH] Fixed mouse getting stuck in the middle of the overlay in
 some games.

---
 overlay_experimental/windows/Windows_Hook.cpp | 16 +++++++++++++++-
 overlay_experimental/windows/Windows_Hook.h   |  2 ++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/overlay_experimental/windows/Windows_Hook.cpp b/overlay_experimental/windows/Windows_Hook.cpp
index f273c5e7..4127aeca 100644
--- a/overlay_experimental/windows/Windows_Hook.cpp
+++ b/overlay_experimental/windows/Windows_Hook.cpp
@@ -18,13 +18,15 @@ bool Windows_Hook::start_hook()
     {
         GetRawInputBuffer = ::GetRawInputBuffer;
         GetRawInputData = ::GetRawInputData;
+        SetCursorPos = ::SetCursorPos;
 
         PRINT_DEBUG("Hooked Windows\n");
 
         BeginHook();
         HookFuncs(
             std::make_pair<void**, void*>(&(PVOID&)GetRawInputBuffer, &Windows_Hook::MyGetRawInputBuffer),
-            std::make_pair<void**, void*>(&(PVOID&)GetRawInputData  , &Windows_Hook::MyGetRawInputData)
+            std::make_pair<void**, void*>(&(PVOID&)GetRawInputData  , &Windows_Hook::MyGetRawInputData),
+            std::make_pair<void**, void*>(&(PVOID&)SetCursorPos  , &Windows_Hook::MySetCursorPos)
         );
         EndHook();
 
@@ -169,6 +171,18 @@ UINT WINAPI Windows_Hook::MyGetRawInputData(HRAWINPUT hRawInput, UINT uiCommand,
 
     return 0;
 }
+
+BOOL WINAPI Windows_Hook::MySetCursorPos(int x, int y)
+{
+    if (get_steam_client()->steam_overlay->ShowOverlay()) {
+        POINT p;
+        GetCursorPos(&p);
+        x = p.x;
+        y = p.y;
+    }
+
+    return Windows_Hook::Inst()->SetCursorPos(x, y);
+}
 /////////////////////////////////////////////////////////////////////////////////////
 
 Windows_Hook::Windows_Hook() :
diff --git a/overlay_experimental/windows/Windows_Hook.h b/overlay_experimental/windows/Windows_Hook.h
index 631edf30..0547dfc3 100644
--- a/overlay_experimental/windows/Windows_Hook.h
+++ b/overlay_experimental/windows/Windows_Hook.h
@@ -26,11 +26,13 @@ private:
     // Hook to Windows window messages
     decltype(GetRawInputBuffer)* GetRawInputBuffer;
     decltype(GetRawInputData)* GetRawInputData;
+    decltype(SetCursorPos)* SetCursorPos;
 
     static LRESULT CALLBACK HookWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
     static UINT WINAPI MyGetRawInputBuffer(PRAWINPUT pData, PUINT pcbSize, UINT cbSizeHeader);
     static UINT WINAPI MyGetRawInputData(HRAWINPUT hRawInput, UINT uiCommand, LPVOID pData, PUINT pcbSize, UINT cbSizeHeader);
 
+    static BOOL WINAPI MySetCursorPos(int x, int y);
 public:
     virtual ~Windows_Hook();