Python ctypes.wintypes.LPWSTR Examples

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).
        
        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).
        
        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def __init__(self, console_handle, fileno, stream_name, encoding):
    super(WinUnicodeConsoleOutput, self).__init__(
        fileno, '<Unicode console %s>' % stream_name, encoding)
    # Handle to use for WriteConsoleW
    self._console_handle = console_handle

    # Loads the necessary function.
    # These types are available on linux but not Mac.
    # pylint: disable=no-name-in-module,F0401
    from ctypes import byref, GetLastError, POINTER, windll, WINFUNCTYPE
    from ctypes.wintypes import BOOL, DWORD, HANDLE, LPWSTR
    from ctypes.wintypes import LPVOID  # pylint: disable=no-name-in-module

    self._DWORD = DWORD
    self._byref = byref

    # <http://msdn.microsoft.com/en-us/library/ms687401.aspx>
    self._WriteConsoleW = WINFUNCTYPE(
        BOOL, HANDLE, LPWSTR, DWORD, POINTER(DWORD), LPVOID)(
            ('WriteConsoleW', windll.kernel32))
    self._GetLastError = GetLastError 

def unicode_sys_argv():
    """Uses shell32.GetCommandLineArgvW to fix sys.argv as a list of
    unicode strings.
    """
    GetCommandLineW = ctypes.cdll.kernel32.GetCommandLineW
    GetCommandLineW.argtypes = []
    GetCommandLineW.restype = wintypes.LPCWSTR
    cmd_line = GetCommandLineW()

    CommandLineToArgvW = ctypes.windll.shell32.CommandLineToArgvW
    CommandLineToArgvW.argtypes = [wintypes.LPCWSTR,
                                   ctypes.POINTER(ctypes.c_int)]
    CommandLineToArgvW.restype = ctypes.POINTER(wintypes.LPWSTR)
    argc = ctypes.c_int(0)
    argv = CommandLineToArgvW(cmd_line, ctypes.byref(argc))

    if argc.value:
        rng = xrange(argc.value - len(sys.argv), argc.value)
        sys.argv = [argv[i] for i in rng] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        .. note::

            Offsets found in the registry are generally of the form
            ``@tzres.dll,-114``. The offset in this case is 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        .. note::

            Offsets found in the registry are generally of the form
            ``@tzres.dll,-114``. The offset in this case is 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        .. note::

            Offsets found in the registry are generally of the form
            ``@tzres.dll,-114``. The offset in this case is 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def get_short_path_name(path):
    from ctypes import windll, wintypes, create_unicode_buffer

    # Set the GetShortPathNameW prototype
    _GetShortPathNameW = windll.kernel32.GetShortPathNameW
    _GetShortPathNameW.argtypes = [wintypes.LPCWSTR,
                                   wintypes.LPWSTR,
                                   wintypes.DWORD]
    _GetShortPathNameW.restype = wintypes.DWORD

    output_buf_size = 0

    while True:
        output_buf = create_unicode_buffer(output_buf_size)
        needed = _GetShortPathNameW(path, output_buf, output_buf_size)
        if output_buf_size >= needed:
            return output_buf.value
        output_buf_size = needed


# A wrapper for subprocess.Popen that fixes quirks on Windows. 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        .. note::

            Offsets found in the registry are generally of the form
            ``@tzres.dll,-114``. The offset in this case is 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def check_aslr():
    # first check for a potentially rebased user32.dll
    from ctypes import windll
    from ctypes import wintypes
    check_dlls = ["user32.dll", "kernel32.dll", "ntdll.dll"]
    offsets = []
    is_aslr = False
    windll.kernel32.GetModuleHandleW.restype = wintypes.HMODULE
    windll.kernel32.GetModuleHandleW.argtypes = [wintypes.LPCWSTR]
    windll.kernel32.GetModuleFileNameW.restype = wintypes.DWORD
    windll.kernel32.GetModuleFileNameW.argtypes = [wintypes.HANDLE, wintypes.LPWSTR, wintypes.DWORD]
    for dll_name in check_dlls:
        h_module_base = windll.kernel32.GetModuleHandleW(dll_name)
        # next get the module's file path
        module_path = ctypes.create_unicode_buffer(255)
        windll.kernel32.GetModuleFileNameW(h_module_base, module_path, 255)
        # then the ImageBase from python.exe file
        pe = pefile.PE(module_path.value)
        pe_header_base_addr = pe.OPTIONAL_HEADER.ImageBase
        offsets.append(pe_header_base_addr - h_module_base)
    for dll_name, offset in zip(check_dlls, offsets):
        LOG.debug("Memory vs. File ImageBase offset (%s): 0x%x", dll_name, offset)
        is_aslr |= offset != 0
    return is_aslr 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        .. note::

            Offsets found in the registry are generally of the form
            ``@tzres.dll,-114``. The offset in this case is 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        .. note::

            Offsets found in the registry are generally of the form
            ``@tzres.dll,-114``. The offset in this case is 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).
        
        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        ..note:
            Offsets found in the registry are generally of the form
            `@tzres.dll,-114`. The offset in this case if 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def load_name(self, offset):
        """
        Load a timezone name from a DLL offset (integer).

        >>> from dateutil.tzwin import tzres
        >>> tzr = tzres()
        >>> print(tzr.load_name(112))
        'Eastern Standard Time'

        :param offset:
            A positive integer value referring to a string from the tzres dll.

        .. note::

            Offsets found in the registry are generally of the form
            ``@tzres.dll,-114``. The offset in this case is 114, not -114.

        """
        resource = self.p_wchar()
        lpBuffer = ctypes.cast(ctypes.byref(resource), wintypes.LPWSTR)
        nchar = self.LoadStringW(self._tzres._handle, offset, lpBuffer, 0)
        return resource[:nchar] 

def win32_utf8_argv():
    """Uses shell32.GetCommandLineArgvW to get sys.argv as a list of Unicode
    strings.

    Versions 2.x of Python don't support Unicode in sys.argv on
    Windows, with the underlying Windows API instead replacing multi-byte
    characters with '?'.
    """

    from ctypes import POINTER, byref, cdll, c_int, windll
    from ctypes.wintypes import LPCWSTR, LPWSTR

    GetCommandLineW = cdll.kernel32.GetCommandLineW
    GetCommandLineW.argtypes = []
    GetCommandLineW.restype = LPCWSTR

    CommandLineToArgvW = windll.shell32.CommandLineToArgvW
    CommandLineToArgvW.argtypes = [LPCWSTR, POINTER(c_int)]
    CommandLineToArgvW.restype = POINTER(LPWSTR)

    cmd = GetCommandLineW()
    argc = c_int(0)
    argv = CommandLineToArgvW(cmd, byref(argc))
    argnum = argc.value
    sysnum = len(sys.argv)
    result = []
    if argnum > 0:
        # Remove Python executable and commands if present
        start = argnum - sysnum
        for i in range(start, argnum):
            result.append(argv[i].encode('utf-8'))
    return result


# enable unicode output to windows console
# https://stackoverflow.com/questions/878972/windows-cmd-encoding-change-causes-python-crash 

def __str_to_winustr__(self, in_str_u):
		"""
		In: Python unicode string
		Out: UNICODE_STRING
		"""

		in_ustr = UNICODE_STRING()
		in_ustr.Length = len(in_str_u)
		in_ustr.MaximumLength = len(in_str_u) + 2
		in_ustr.Buffer = wintypes.LPWSTR(in_str_u)

		return in_ustr 

def __init__(self, tzres_loc='tzres.dll'):
        # Load the user32 DLL so we can load strings from tzres
        user32 = ctypes.WinDLL('user32')

        # Specify the LoadStringW function
        user32.LoadStringW.argtypes = (wintypes.HINSTANCE,
                                       wintypes.UINT,
                                       wintypes.LPWSTR,
                                       ctypes.c_int)

        self.LoadStringW = user32.LoadStringW
        self._tzres = ctypes.WinDLL(tzres_loc)
        self.tzres_loc = tzres_loc