mirror of
https://github.com/Alia5/GlosSI.git
synced 2024-11-16 21:25:49 +00:00
131 lines
3.9 KiB
C++
131 lines
3.9 KiB
C++
/*
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Copyright 2021-2022 Peter Repukat - FlatspotSoftware
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/*
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There are two (known to me, at time of writing) ways to get a working overlay for UWP Apps
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1. Create an accessibility app
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Set UIAcces in manifest to true
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This however requires that the application is digitally signed
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and is run from a trusted directory (Program Files; System32)
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At this point UWP overlays are not a technical issue anymore, but a monetary
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I have no interest in spending ~100 bucks a year just to provide this functionality to users.
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You could also self-sign the application, but installing a trusted root CA is a security risk
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2. Use undocumented SetWindowBand function
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This function however is not freely callable from every process.
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Even when injected into explorer.exe, it doesn't seem to work when just calling normally...
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So let's hook the original function, and try to do "the magic" then
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This seemingly works ¯\_(ツ)_/¯
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"The magic":
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Hook SetWindowBand
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Once called, find GlosSI Window
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Set GlosSI Window to ZBID_SYSTEM_TOOLS (Doesn't seem to require any special stuff)
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Self-Eject
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**PROFIT!**
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*/
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#define WIN32_LEAN_AND_MEAN
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#include <Windows.h>
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#define SUBHOOK_STATIC
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#include <atomic>
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#include <subhook.h>
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enum ZBID
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{
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ZBID_DEFAULT = 0,
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ZBID_DESKTOP = 1,
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ZBID_UIACCESS = 2,
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ZBID_IMMERSIVE_IHM = 3,
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ZBID_IMMERSIVE_NOTIFICATION = 4,
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ZBID_IMMERSIVE_APPCHROME = 5,
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ZBID_IMMERSIVE_MOGO = 6,
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ZBID_IMMERSIVE_EDGY = 7,
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ZBID_IMMERSIVE_INACTIVEMOBODY = 8,
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ZBID_IMMERSIVE_INACTIVEDOCK = 9,
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ZBID_IMMERSIVE_ACTIVEMOBODY = 10,
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ZBID_IMMERSIVE_ACTIVEDOCK = 11,
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ZBID_IMMERSIVE_BACKGROUND = 12,
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ZBID_IMMERSIVE_SEARCH = 13,
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ZBID_GENUINE_WINDOWS = 14,
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ZBID_IMMERSIVE_RESTRICTED = 15,
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ZBID_SYSTEM_TOOLS = 16,
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ZBID_LOCK = 17,
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ZBID_ABOVELOCK_UX = 18,
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};
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typedef BOOL(WINAPI* fSetWindowBand)(HWND hWnd, HWND hwndInsertAfter, DWORD dwBand);
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subhook::Hook SetWindowBandHook;
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fSetWindowBand SetWindowBand;
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std::atomic<bool> allow_exit = false;
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BOOL WINAPI SetGlosSIWindowBand(HWND hWnd, HWND hwndInsertAfter, DWORD dwBand)
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{
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subhook::ScopedHookRemove remove(&SetWindowBandHook);
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const auto glossi_hwnd = FindWindowA(nullptr, "GlosSITarget");
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if (glossi_hwnd)
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{
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// Most window bands don't really seem to work.
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// However, notification and system_tools does!
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// use system tools, as that allows the steam overlay to be interacted with
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// without UWP apps minimizing
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SetWindowBand(glossi_hwnd, nullptr, ZBID_SYSTEM_TOOLS);
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allow_exit = true;
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}
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return SetWindowBand(hWnd, hwndInsertAfter, dwBand);
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}
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DWORD WINAPI WaitThread(HMODULE hModule)
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{
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while (!allow_exit)
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{
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Sleep(10);
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}
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if (SetWindowBandHook.IsInstalled())
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SetWindowBandHook.Remove();
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FreeLibraryAndExitThread(hModule, 0);
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}
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BOOL APIENTRY DllMain( HMODULE hModule,
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DWORD ul_reason_for_call,
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LPVOID lpReserved
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)
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{
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if (ul_reason_for_call == DLL_PROCESS_ATTACH)
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{
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const auto hpath = LoadLibrary(L"user32.dll");
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if (hpath)
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{
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SetWindowBand = reinterpret_cast<fSetWindowBand>(GetProcAddress(hpath, "SetWindowBand"));
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SetWindowBandHook.Install(GetProcAddress(hpath, "SetWindowBand"), &SetGlosSIWindowBand, subhook::HookFlags::HookFlag64BitOffset);
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CloseHandle(CreateThread(nullptr, 0, (LPTHREAD_START_ROUTINE)WaitThread, hModule, 0, nullptr));
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}
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}
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else if (ul_reason_for_call == DLL_PROCESS_DETACH) {
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if (SetWindowBandHook.IsInstalled())
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SetWindowBandHook.Remove();
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}
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return TRUE;
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}
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