fix: hook GetRawInputData to block mouse clicks from reaching game through menu (#959)

* fix: hook GetRawInputData to block mouse clicks from reaching game

* fix: only block raw mouse clicks when over ImGui menu

Blocks clicks using ImGui::GetIO().WantCaptureMouse instead of
blanket-blocking all clicks when menu is open. Lets clicks pass
through to the game for areas outside the menu.

* fix: remove redundant GUI::IsOpen() check

WantCaptureMouse already implies menu is visible.

src/core/hooking/Hooking.cpp

@@ -12,6 +12,8 @@ namespace YimMenu
 	{
 		BaseHook::Add<Hooks::Window::WndProc>(new DetourHook("WndProc", Pointers.WndProc, Hooks::Window::WndProc));
 
+		BaseHook::Add<Hooks::RawInput::GetRawInputData>(new DetourHook("GetRawInputData", reinterpret_cast<void*>(GetProcAddress(LoadLibraryA("user32.dll"), "GetRawInputData")), Hooks::RawInput::GetRawInputData));
+
 		auto swapchain_vft = *reinterpret_cast<void***>(*Pointers.SwapChain);
 		BaseHook::Add<Hooks::SwapChain::Present>(new DetourHook("Present", swapchain_vft[Hooks::SwapChain::VMTPresentIdx], Hooks::SwapChain::Present));
 		BaseHook::Add<Hooks::SwapChain::ResizeBuffers>(new DetourHook("ResizeBuffers", swapchain_vft[Hooks::SwapChain::VMTResizeBuffersIdx], Hooks::SwapChain::ResizeBuffers));

src/game/hooks/GUI/RawInput.cpp

@@ -0,0 +1,25 @@
+#include "core/hooking/DetourHook.hpp"
+#include "game/frontend/GUI.hpp"
+#include "game/hooks/Hooks.hpp"
+
+#include <imgui.h>
+
+namespace YimMenu::Hooks
+{
+	UINT RawInput::GetRawInputData(HRAWINPUT hRawInput, UINT uiCommand, LPVOID pData, PUINT pcbSize, UINT cbSizeHeader)
+	{
+		auto result = BaseHook::Get<RawInput::GetRawInputData, DetourHook<decltype(&RawInput::GetRawInputData)>>()->Original()(hRawInput, uiCommand, pData, pcbSize, cbSizeHeader);
+
+		if (result > 0 && pData && uiCommand == RID_INPUT && ImGui::GetIO().WantCaptureMouse)
+		{
+			auto& raw = *(RAWINPUT*)pData;
+			if (raw.header.dwType == RIM_TYPEMOUSE && raw.data.mouse.usButtonFlags)
+			{
+				// Zero out button flags to prevent game from seeing clicks while menu is open
+				raw.data.mouse.usButtonFlags = 0;
+			}
+		}
+
+		return result;
+	}
+}

src/game/hooks/Hooks.hpp

@@ -98,6 +98,11 @@ namespace YimMenu::Hooks
 		extern LRESULT WndProc(HWND hwnd, UINT umsg, WPARAM wparam, LPARAM lparam);
 	}
 
+	namespace RawInput
+	{
+		extern UINT GetRawInputData(HRAWINPUT hRawInput, UINT uiCommand, LPVOID pData, PUINT pcbSize, UINT cbSizeHeader);
+	}
+
 	namespace Misc
 	{
 		extern bool AssistedAimShouldReleaseEntity(__int64 a1);