def find_available_vc_vers(self):
"""
Find all available Microsoft Visual C++ versions.
"""
vckeys = (self.ri.vc, self.ri.vc_for_python)
vc_vers = []
for hkey in self.ri.HKEYS:
for key in vckeys:
try:
bkey = winreg.OpenKey(hkey, key, 0, winreg.KEY_READ)
except (OSError, IOError):
continue
subkeys, values, _ = winreg.QueryInfoKey(bkey)
for i in range(values):
try:
ver = float(winreg.EnumValue(bkey, i)[0])
if ver not in vc_vers:
vc_vers.append(ver)
except ValueError:
pass
for i in range(subkeys):
try:
ver = float(winreg.EnumKey(bkey, i))
if ver not in vc_vers:
vc_vers.append(ver)
except ValueError:
pass
return sorted(vc_vers)
def valuestodict(key):
"""Convert a registry key's values to a dictionary."""
dout = {}
size = winreg.QueryInfoKey(key)[1]
tz_res = None
for i in range(size):
key_name, value, dtype = winreg.EnumValue(key, i)
if (dtype == winreg.REG_DWORD
or dtype == winreg.REG_DWORD_LITTLE_ENDIAN):
# If it's a DWORD (32-bit integer), it's stored as unsigned - convert
# that to a proper signed integer
if value & (1 << 31):
value = value - (1 << 32)
elif dtype == winreg.REG_SZ:
# If it's a reference to the tzres DLL, load the actual string
if value.startswith("@tzres"):
tz_res = tz_res or tzres()
value = tz_res.name_from_string(value)
value = value.rstrip("\x00") # Remove trailing nulls
dout[key_name] = value
return dout
def valuestodict(key):
"""Convert a registry key's values to a dictionary."""
dict = {}
size = winreg.QueryInfoKey(key)[1]
for i in range(size):
data = winreg.EnumValue(key, i)
dict[data[0]] = data[1]
return dict
def win32InstalledFonts(directory=None, fontext='ttf'):
"""
Search for fonts in the specified font directory, or use the
system directories if none given. A list of TrueType font
filenames are returned by default, or AFM fonts if *fontext* ==
'afm'.
"""
from six.moves import winreg
if directory is None:
directory = win32FontDirectory()
fontext = get_fontext_synonyms(fontext)
key, items = None, set()
for fontdir in MSFontDirectories:
try:
local = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, fontdir)
except OSError:
continue
if not local:
return list_fonts(directory, fontext)
try:
for j in range(winreg.QueryInfoKey(local)[1]):
try:
key, direc, tp = winreg.EnumValue(local, j)
if not isinstance(direc, six.string_types):
continue
# Work around for https://bugs.python.org/issue25778, which
# is fixed in Py>=3.6.1.
direc = direc.split("\0", 1)[0]
if not os.path.dirname(direc):
direc = os.path.join(directory, direc)
direc = os.path.abspath(direc).lower()
if os.path.splitext(direc)[1][1:] in fontext:
items.add(direc)
except EnvironmentError:
continue
except WindowsError:
continue
except MemoryError:
continue
return list(items)
finally:
winreg.CloseKey(local)
return None
def win32InstalledFonts(directory=None, fontext='ttf'):
"""
Search for fonts in the specified font directory, or use the
system directories if none given. A list of TrueType font
filenames are returned by default, or AFM fonts if *fontext* ==
'afm'.
"""
from six.moves import winreg
if directory is None:
directory = win32FontDirectory()
fontext = get_fontext_synonyms(fontext)
key, items = None, {}
for fontdir in MSFontDirectories:
try:
local = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, fontdir)
except OSError:
continue
if not local:
return list_fonts(directory, fontext)
try:
for j in range(winreg.QueryInfoKey(local)[1]):
try:
key, direc, any = winreg.EnumValue(local, j)
if not is_string_like(direc):
continue
if not os.path.dirname(direc):
direc = os.path.join(directory, direc)
direc = os.path.abspath(direc).lower()
if os.path.splitext(direc)[1][1:] in fontext:
items[direc] = 1
except EnvironmentError:
continue
except WindowsError:
continue
except MemoryError:
continue
return list(six.iterkeys(items))
finally:
winreg.CloseKey(local)
return None
def _delete_key_if_empty(self, service):
key_name = self._key_for_service(service)
key = winreg.OpenKey(
winreg.HKEY_CURRENT_USER, key_name, 0,
winreg.KEY_ALL_ACCESS)
try:
winreg.EnumValue(key, 0)
return
except WindowsError:
pass
winreg.CloseKey(key)
# it's empty; delete everything
while key_name != 'Software':
parent, sep, base = key_name.rpartition('\\')
key = winreg.OpenKey(
winreg.HKEY_CURRENT_USER, parent, 0,
winreg.KEY_ALL_ACCESS)
winreg.DeleteKey(key, base)
winreg.CloseKey(key)
key_name = parent
def _get_serial_ports_windows():
'''
Uses the Win32 registry to return a iterator of serial (COM) ports existing
on this computer.
See http://stackoverflow.com/questions/1205383/listing-serial-com-ports-on-windows
'''
import six.moves.winreg as winreg
reg_path = 'HARDWARE\\DEVICEMAP\\SERIALCOMM'
try:
key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, reg_path)
except WindowsError:
# No serial ports. Return empty generator.
return
for i in itertools.count():
try:
val = winreg.EnumValue(key, i)
yield str(val[1])
except EnvironmentError:
break
