save attached games and allow launching from textractor using locale emulator

GUI/extenwindow.cpp

@@ -7,7 +7,6 @@
 #include <shared_mutex>
 #include <QDragEnterEvent>
 #include <QDropEvent>
-#include <QFileDialog>
 #include <QMimeData>
 #include <QUrl>
 #include <QLabel>
@@ -30,15 +29,13 @@ namespace
 	{
 		if (extenName == ITH_DLL) return;
 		// Extension is dll and exports "OnNewSentence"
-		HMODULE module = GetModuleHandleW(S(extenName).c_str());
-		if (!module) module = LoadLibraryW(S(extenName).c_str());
-		if (!module) return;
-		FARPROC callback = GetProcAddress(module, "OnNewSentence");
-		if (!callback) return;
+		if (FARPROC callback = GetProcAddress(LoadLibraryOnce(S(extenName)), "OnNewSentence"))
+		{
 			std::scoped_lock writeLock(extenMutex);
 			extensions[extenName] = (wchar_t*(*)(const wchar_t*, const InfoForExtension*))callback;
 			extenNames.push_back(extenName);
 		}
+	}
 
 	void Unload(QString extenName)
 	{

GUI/main.cpp

@@ -2,7 +2,6 @@
 #include "misc.h"
 #include "host/util.h"
 #include <QApplication>
-#include <QDir>
 
 int main(int argc, char *argv[])
 {

GUI/mainwindow.cpp

@@ -11,6 +11,7 @@
 #include <QPushButton>
 #include <QSpinBox>
 #include <QInputDialog>
+#include <QFileDialog>
 
 MainWindow::MainWindow(QWidget *parent) :
 	QMainWindow(parent),
@@ -20,6 +21,7 @@ MainWindow::MainWindow(QWidget *parent) :
 	ui->setupUi(this);
 	for (auto[text, slot] : Array<std::tuple<QString, void(MainWindow::*)()>>{
 		{ ATTACH, &MainWindow::AttachProcess },
+		{ LAUNCH, &MainWindow::LaunchProcess },
 		{ DETACH, &MainWindow::DetachProcess },
 		{ ADD_HOOK, &MainWindow::AddHook },
 		{ SAVE_HOOKS, &MainWindow::SaveHooks },
@@ -90,6 +92,9 @@ void MainWindow::ProcessConnected(DWORD processId)
 	{
 		QString process = S(Util::GetModuleFilename(processId).value_or(L"???"));
 		ui->processCombo->addItem(QString::number(processId, 16).toUpper() + ": " + QFileInfo(process).fileName());
+		if (process == "???") return;
+
+		QTextFile(GAME_SAVE_FILE, QIODevice::WriteOnly | QIODevice::Append).write((process + "\n").toUtf8());
 
 		QStringList allProcesses = QString(QTextFile(HOOK_SAVE_FILE, QIODevice::ReadOnly).readAll()).split("\n", QString::SkipEmptyParts);
 		// Can't use QFileInfo::absoluteFilePath since hook save file has '\\' as path separator
@@ -198,13 +203,53 @@ void MainWindow::AttachProcess()
 
 	QStringList processList(allProcesses.uniqueKeys());
 	processList.sort(Qt::CaseInsensitive);
-	bool ok;
 	QString process = QInputDialog::getItem(this, SELECT_PROCESS, ATTACH_INFO, processList, 0, true, &ok, Qt::WindowCloseButtonHint);
 	if (!ok) return;
 	if (process.toInt(nullptr, 0)) Host::InjectProcess(process.toInt(nullptr, 0));
 	else for (auto processId : allProcesses.values(process)) Host::InjectProcess(processId);
 }
 
+void MainWindow::LaunchProcess()
+{
+	QStringList savedProcesses = QString::fromUtf8(QTextFile(GAME_SAVE_FILE, QIODevice::ReadOnly).readAll()).split("\n", QString::SkipEmptyParts);
+	savedProcesses.removeDuplicates();
+	savedProcesses.sort(Qt::CaseInsensitive);
+	savedProcesses.push_back(SEARCH_GAME);
+	std::wstring process = S(QInputDialog::getItem(this, SELECT_PROCESS, "", savedProcesses, 0, true, &ok, Qt::WindowCloseButtonHint));
+	if (!ok) return;
+	if (S(process) == SEARCH_GAME) process = S(QDir::toNativeSeparators(QFileDialog::getOpenFileName(this, SELECT_PROCESS, "C:\\", PROCESSES)));
+	if (process.empty()) return;
+	std::wstring path = std::wstring(process).erase(process.rfind(L'\\'));
+	PROCESS_INFORMATION info = {};
+	if (HMODULE localeEmulator = LoadLibraryOnce(L"LoaderDll"))
+	{
+		// see https://github.com/xupefei/Locale-Emulator/blob/aa99dec3b25708e676c90acf5fed9beaac319160/LEProc/LoaderWrapper.cs#L252
+		struct
+		{
+			ULONG AnsiCodePage = Host::defaultCodepage;
+			ULONG OemCodePage = Host::defaultCodepage;
+			ULONG LocaleID = LANG_JAPANESE;
+			ULONG DefaultCharset = DEFAULT_CHARSET;
+			ULONG HookUiLanguageApi = FALSE;
+			WCHAR DefaultFaceName[LF_FACESIZE] = {};
+			TIME_ZONE_INFORMATION Timezone;
+			ULONG64 Unused = 0;
+		} LEB;
+		GetTimeZoneInformation(&LEB.Timezone);
+		((LONG(__stdcall*)(decltype(&LEB), LPCWSTR appName, LPWSTR commandLine, LPCWSTR currentDir, void*, void*, PROCESS_INFORMATION*, void*, void*, void*, void*))
+			GetProcAddress(localeEmulator, "LeCreateProcess"))(&LEB, process.c_str(), NULL, path.c_str(), NULL, NULL, &info, NULL, NULL, NULL, NULL);
+	}
+	if (info.hProcess == NULL)
+	{
+		STARTUPINFOW DUMMY = { sizeof(DUMMY) };
+		CreateProcessW(process.c_str(), NULL, nullptr, nullptr, FALSE, 0, nullptr, path.c_str(), &DUMMY, &info);
+	}
+	if (info.hProcess == NULL) return Host::AddConsoleOutput(LAUNCH_FAILED);
+	Host::InjectProcess(info.dwProcessId);
+	CloseHandle(info.hProcess);
+	CloseHandle(info.hThread);
+}
+
 void MainWindow::DetachProcess()
 {
 	Host::DetachProcess(GetSelectedProcessId());
@@ -212,7 +257,6 @@ void MainWindow::DetachProcess()
 
 void MainWindow::AddHook()
 {
-	bool ok;
 	QString hookCode = QInputDialog::getText(this, ADD_HOOK, CODE_INFODUMP, QLineEdit::Normal, "", &ok, Qt::WindowCloseButtonHint);
 	if (!ok) return;
 	if (auto hp = ParseCode(hookCode)) Host::InsertHook(GetSelectedProcessId(), hp.value());
@@ -233,7 +277,7 @@ void MainWindow::SaveHooks()
 				if (!(hp.type & HOOK_ENGINE)) hookCodes[tp.addr] = GenerateCode(hp, tp.processId);
 			}
 		}
-		QTextFile(HOOK_SAVE_FILE, QIODevice::Append).write((S(processName.value()) + " , " + QStringList(hookCodes.values()).join(" , ") + "\n").toUtf8());
+		QTextFile(HOOK_SAVE_FILE, QIODevice::WriteOnly | QIODevice::Append).write((S(processName.value()) + " , " + QStringList(hookCodes.values()).join(" , ") + "\n").toUtf8());
 	}
 }
 

GUI/mainwindow.h

@@ -15,6 +15,8 @@ public:
 	~MainWindow();
 
 private:
+	inline static thread_local bool ok = false;
+
 	void closeEvent(QCloseEvent*) override;
 	void ProcessConnected(DWORD processId);
 	void ProcessDisconnected(DWORD processId);
@@ -26,6 +28,7 @@ private:
 	DWORD GetSelectedProcessId();
 	std::unordered_map<const char*, int64_t> GetMiscInfo(TextThread* thread);
 	void AttachProcess();
+	void LaunchProcess();
 	void DetachProcess();
 	void AddHook();
 	void SaveHooks();

GUI/misc.cpp

@@ -265,6 +265,13 @@ QString GenerateCode(HookParam hp, DWORD processId)
 	else return GenerateHCode(hp, processId);
 }
 
+HMODULE LoadLibraryOnce(std::wstring fileName)
+{
+	HMODULE module = GetModuleHandleW(fileName.c_str());
+	if (!module) module = LoadLibraryW(fileName.c_str());
+	return module;
+}
+
 TEST(
 	assert(ParseCode("/HQN936#-c*C:C*1C@4AA:gdi.dll:GetTextOutA")),
 	assert(ParseCode("HB4@0")),

GUI/misc.h

@@ -13,3 +13,4 @@ inline std::wstring S(const QString& S) { return { S.toStdWString() }; }
 inline QString S(const std::wstring& S) { return QString::fromStdWString(S); }
 std::optional<HookParam> ParseCode(QString HCode);
 QString GenerateCode(HookParam hp, DWORD processId);
+HMODULE LoadLibraryOnce(std::wstring fileName);

GUI/qtcommon.h

@@ -8,5 +8,6 @@
 #include <QDialog>
 #include <QFile>
 #include <QFileInfo>
+#include <QDir>
 #include <QRegularExpression>
 #include <QSettings>

include/defs.h

@@ -23,6 +23,7 @@ constexpr auto ITH_HOOKMAN_MUTEX_ = L"VNR_HOOKMAN_"; // ITH_HOOKMAN_%d
 constexpr auto ITH_DLL = L"vnrhook"; // .dll but LoadLibrary automatically adds that
 constexpr auto CONFIG_FILE = u8"Textractor.ini";
 constexpr auto HOOK_SAVE_FILE = u8"SavedHooks.txt";
+constexpr auto GAME_SAVE_FILE = u8"Games.txt";
 constexpr auto EXTEN_SAVE_FILE = u8"Extensions.txt";
 
 // Functions

include/text.h

@@ -5,6 +5,7 @@
 
 #ifdef ENGLISH
 constexpr auto ATTACH = u8"Attach to game";
+constexpr auto LAUNCH = u8"Launch game";
 constexpr auto DETACH = u8"Detach from game";
 constexpr auto ADD_HOOK = u8"Add hook";
 constexpr auto SAVE_HOOKS = u8"Save hook(s)";
@@ -13,6 +14,8 @@ constexpr auto EXTENSIONS = u8"Extensions";
 constexpr auto SELECT_PROCESS = u8"Select Process";
 constexpr auto ATTACH_INFO = u8R"(If you don't see the process you want to attach, try running with admin rights
 You can also type in the process id)";
+constexpr auto SEARCH_GAME = u8"Select from computer";
+constexpr auto PROCESSES = u8"Processes (*.exe)";
 constexpr auto CODE_INFODUMP = u8R"(Search for text
 S[codepage#]text
 OR
@@ -49,6 +52,7 @@ constexpr auto UPDATE_AVAILABLE = L"Update available: download it from https://g
 constexpr auto ALREADY_INJECTED = L"Textractor: already injected";
 constexpr auto ARCHITECTURE_MISMATCH = L"Textractor: architecture mismatch: try 32 bit Textractor instead";
 constexpr auto INJECT_FAILED = L"Textractor: couldn't inject";
+constexpr auto LAUNCH_FAILED = L"Textractor: couldn't launch";
 constexpr auto INVALID_CODE = L"Textractor: invalid code";
 constexpr auto INVALID_CODEPAGE = L"Textractor: couldn't convert text (invalid codepage?)";
 constexpr auto PIPE_CONNECTED = u8"Textractor: pipe connected";