Function wWinMain

updater/Windows/WindowsUpdater.cpp:418–516

}

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nShowCmd)
{
	Win32ProgressCallback progress;

	wil::unique_couninitialize_call uninit = wil::CoInitializeEx_failfast(COINIT_MULTITHREADED);

	int argc = 0;
	wil::unique_hlocal_ptr<LPWSTR[]> argv(CommandLineToArgvW(GetCommandLineW(), &argc));
	if (!argv || argc <= 0)
	{
		progress.ModalError("Failed to parse command line.");
		return 1;
	}
	if (argc != 5)
	{
		progress.ModalError("Expected 4 arguments: parent process id, output directory, update zip, program to "
							"launch.\n\nThis program is not intended to be run manually, please use the main PCSX2 application and "
							"click Help->Check for Updates.");
		return 1;
	}

	const int parent_process_id = StringUtil::FromChars<int>(StringUtil::WideStringToUTF8String(argv[1])).value_or(0);
	const std::string destination_directory = StringUtil::WideStringToUTF8String(argv[2]);
	const std::string zip_path = StringUtil::WideStringToUTF8String(argv[3]);
	const std::wstring program_to_launch(argv[4]);
	argv.reset();

	if (parent_process_id <= 0 || destination_directory.empty() || zip_path.empty() || program_to_launch.empty())
	{
		progress.ModalError("One or more parameters is empty.");
		return 1;
	}

	Updater::SetupLogging(&progress, destination_directory);
	Updater updater(&progress);

	progress.SetFormattedStatusText("Waiting for parent process %d to exit...", parent_process_id);
	progress.SetProgressState(ProgressCallback::ProgressState::Indeterminate);
	WaitForProcessToExit(parent_process_id);

	if (!updater.Initialize(destination_directory))
	{
		progress.ModalError("Failed to initialize updater.");
		return 1;
	}

	if (!updater.OpenUpdateZip(zip_path.c_str()))
	{
		progress.DisplayFormattedModalError("Could not open update zip '%s'. Update not installed.", zip_path.c_str());
		return 1;
	}

	if (!updater.PrepareStagingDirectory())
	{
		progress.ModalError("Failed to prepare staging directory. Update not installed.");
		return 1;
	}