Function BackendReadTargetPath

src/AutostartManager.cpp:162–207

	static const wchar_t *RUN_VALUE_NAME = L"aMule";

	wxString BackendReadTargetPath()
	{
		HKEY hKey;
		if (RegOpenKeyExW(HKEY_CURRENT_USER, RUN_KEY, 0, KEY_QUERY_VALUE, &hKey) != ERROR_SUCCESS) {
			return wxEmptyString;
		}

		// First call returns the required buffer size; second call
		// reads the value. Sized in bytes, includes the trailing NUL.
		DWORD type = 0;
		DWORD cb = 0;
		LSTATUS rc = RegQueryValueExW(hKey, RUN_VALUE_NAME, NULL, &type, NULL, &cb);
		if (rc != ERROR_SUCCESS || (type != REG_SZ && type != REG_EXPAND_SZ) || cb == 0) {
			RegCloseKey(hKey);
			return wxEmptyString;
		}

		// cb is in bytes; convert to wide-character count, rounding up.
		size_t wlen = (cb + sizeof(wchar_t) - 1) / sizeof(wchar_t);
		std::vector<wchar_t> buf(wlen + 1, L'\0');
		rc = RegQueryValueExW(hKey, RUN_VALUE_NAME, NULL, &type,
			reinterpret_cast<LPBYTE>(buf.data()), &cb);
		RegCloseKey(hKey);
		if (rc != ERROR_SUCCESS) {
			return wxEmptyString;
		}

		wxString raw(buf.data());

		// Windows stores Run entries either bare ("C:\Foo\bar.exe")
		// or quoted ('"C:\Foo\bar.exe" --some-flag'). Strip surrounding
		// quotes and discard any argument tail so the path comparison
		// in SelfHealOnStartup matches the unadorned canonical path.
		if (!raw.empty() && raw[0] == wxT('"')) {
			size_t closing = raw.find(wxT('"'), 1);
			if (closing != wxString::npos) {
				return raw.SubString(1, closing - 1);
			}
		}
		// Unquoted: take the leading non-whitespace run as the path.
		size_t sp = raw.find_first_of(wxT(" \t"));
		if (sp != wxString::npos) {
			return raw.SubString(0, sp - 1);
		}
		return raw;
	}

	bool BackendWrite(const wxString &executable)
	{