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85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
/*
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Copyright 2021-2023 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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#include "SteamOverlayDetector.h"
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#include <spdlog/spdlog.h>
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#include "..\common\Settings.h"
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#ifdef _WIN32
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#define NOMINMAX
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#include <Windows.h>
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#endif
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SteamOverlayDetector::SteamOverlayDetector(std::function<void(bool)> overlay_changed)
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: overlay_changed_(std::move(overlay_changed))
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{
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}
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void SteamOverlayDetector::update()
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{
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#ifdef _WIN32
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// Steam hooks into Windows messages
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// as long as the overlay is open, every msg (except for input messages?)
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// get's the message field set to `0`
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// to detect the overlay, just exploit this.
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// if the message is 0 3 frames consecutively -> overlay is open
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// not -> closed
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//
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// i'm guessing something very similar is done on linux
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// however
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// reversing on linux SUUUUUUUCKS!
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MSG msg;
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// okey to use nullptr as hwnd. get EVERY message
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if (PeekMessage(&msg, nullptr, 0, 0, PM_NOREMOVE)) {
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// filter out some messages as not all get altered by steam...
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if (Settings::common.extendedLogging && msg.message != 512 && msg.message != 5374) {
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spdlog::trace("PeekMessage: Window msg: {}", msg.message);
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}
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if (msg.message < 1000 && msg.message > 0) {
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return;
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}
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if (msg.message == 0 && !overlay_open_) {
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msg_count_++;
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if (msg_count_ >= 3) {
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msg_count_ = 0;
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overlay_open_ = true;
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spdlog::debug("Overlay opened");
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overlay_changed_(overlay_open_);
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}
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}
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if (msg.message != 0 && overlay_open_) {
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msg_count_++;
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if (msg_count_ >= 3) {
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msg_count_ = 0;
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overlay_open_ = false;
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spdlog::debug("Overlay closed");
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overlay_changed_(overlay_open_);
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}
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}
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}
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#endif
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}
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bool SteamOverlayDetector::IsSteamInjected()
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{
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#ifdef _WIN32
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return GetModuleHandle(L"GameOverlayRenderer64.dll") != nullptr;
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#endif
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}
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