我们从Python开源项目中，提取了以下10个代码示例，用于说明如何使用win32api.ExpandEnvironmentStrings()。
def get_home_dir(self, username): """Return the user's profile directory, the closest thing to a user home directory we have on Windows. """ try: sid = win32security.ConvertSidToStringSid( win32security.LookupAccountName(None, username)[0]) except pywintypes.error as err: raise AuthorizerError(err) path = r"SOFTWARE\Microsoft\Windows NT" \ r"\CurrentVersion\ProfileList" + "\\" + sid try: key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, path) except WindowsError: raise AuthorizerError( "No profile directory defined for user %s" % username) value = winreg.QueryValueEx(key, "ProfileImagePath")[0] home = win32api.ExpandEnvironmentStrings(value) if not PY3 and not isinstance(home, unicode): home = home.decode('utf8') return home
def FormatMessage( eventLogRecord, logType="Application" ): """Given a tuple from ReadEventLog, and optionally where the event record came from, load the message, and process message inserts. Note that this function may raise win32api.error. See also the function SafeFormatMessage which will return None if the message can not be processed. """ # From the event log source name, we know the name of the registry # key to look under for the name of the message DLL that contains # the messages we need to extract with FormatMessage. So first get # the event log source name... keyName = "SYSTEM\\CurrentControlSet\\Services\\EventLog\\%s\\%s" % (logType, eventLogRecord.SourceName) # Now open this key and get the EventMessageFile value, which is # the name of the message DLL. handle = win32api.RegOpenKey(win32con.HKEY_LOCAL_MACHINE, keyName) try: dllNames = win32api.RegQueryValueEx(handle, "EventMessageFile")[0].split(";") # Win2k etc appear to allow multiple DLL names data = None for dllName in dllNames: try: # Expand environment variable strings in the message DLL path name, # in case any are there. dllName = win32api.ExpandEnvironmentStrings(dllName) dllHandle = win32api.LoadLibraryEx(dllName, 0, win32con.LOAD_LIBRARY_AS_DATAFILE) try: data = win32api.FormatMessageW(win32con.FORMAT_MESSAGE_FROM_HMODULE, dllHandle, eventLogRecord.EventID, langid, eventLogRecord.StringInserts) finally: win32api.FreeLibrary(dllHandle) except win32api.error: pass # Not in this DLL - try the next if data is not None: break finally: win32api.RegCloseKey(handle) return data or u'' # Don't want "None" ever being returned.
def FormatMessage( eventLogRecord, logType="Application" ): """Given a tuple from ReadEventLog, and optionally where the event record came from, load the message, and process message inserts. Note that this function may raise win32api.error. See also the function SafeFormatMessage which will return None if the message can not be processed. """ # From the event log source name, we know the name of the registry # key to look under for the name of the message DLL that contains # the messages we need to extract with FormatMessage. So first get # the event log source name... keyName = "SYSTEM\\CurrentControlSet\\Services\\EventLog\\%s\\%s" % (logType, eventLogRecord.SourceName) # Now open this key and get the EventMessageFile value, which is # the name of the message DLL. handle = win32api.RegOpenKey(win32con.HKEY_LOCAL_MACHINE, keyName) try: dllNames = win32api.RegQueryValueEx(handle, "EventMessageFile")[0].split(";") # Win2k etc appear to allow multiple DLL names data = None for dllName in dllNames: try: # Expand environment variable strings in the message DLL path name, # in case any are there. dllName = win32api.ExpandEnvironmentStrings(dllName) dllHandle = win32api.LoadLibraryEx(dllName, 0, win32con.LOAD_LIBRARY_AS_DATAFILE) try: data = win32api.FormatMessageW(win32con.FORMAT_MESSAGE_FROM_HMODULE, dllHandle, eventLogRecord.EventID, langid, eventLogRecord.StringInserts) finally: win32api.FreeLibrary(dllHandle) except win32api.error: pass # Not in this DLL - try the next if data is not None: break finally: win32api.RegCloseKey(handle) return data or '' # Don't want "None" ever being returned.
def EnumTlbs(excludeFlags = 0): """Return a list of TypelibSpec objects, one for each registered library. """ key = win32api.RegOpenKey(win32con.HKEY_CLASSES_ROOT, "Typelib") iids = EnumKeys(key) results = [] for iid, crap in iids: try: key2 = win32api.RegOpenKey(key, str(iid)) except win32api.error: # A few good reasons for this, including "access denied". continue for version, tlbdesc in EnumKeys(key2): major_minor = version.split('.', 1) if len(major_minor) < 2: major_minor.append('0') # For some reason, this code used to assume the values were hex. # This seems to not be true - particularly for CDO 1.21 # *sigh* - it appears there are no rules here at all, so when we need # to know the info, we must load the tlb by filename and request it. # The Resolve() method on the TypelibSpec does this. # For this reason, keep the version numbers as strings - that # way we can't be wrong! Let code that really needs an int to work # out what to do. FWIW, http://support.microsoft.com/kb/816970 is # pretty clear that they *should* be hex. major = major_minor[0] minor = major_minor[1] key3 = win32api.RegOpenKey(key2, str(version)) try: # The "FLAGS" are at this point flags = int(win32api.RegQueryValue(key3, "FLAGS")) except (win32api.error, ValueError): flags = 0 if flags & excludeFlags==0: for lcid, crap in EnumKeys(key3): try: lcid = int(lcid) except ValueError: # not an LCID entry continue # Only care about "{lcid}\win32" key - jump straight there. try: key4 = win32api.RegOpenKey(key3, "%s\\win32" % (lcid,)) except win32api.error: continue try: dll, typ = win32api.RegQueryValueEx(key4, None) if typ==win32con.REG_EXPAND_SZ: dll = win32api.ExpandEnvironmentStrings(dll) except win32api.error: dll = None spec = TypelibSpec(iid, lcid, major, minor, flags) spec.dll = dll spec.desc = tlbdesc spec.ver_desc = tlbdesc + " (" + version + ")" results.append(spec) return results
def get_extension_defn(moduleName, mapFileName, prefix): if win32api is None: return None os.environ['PYTHONPREFIX'] = prefix dsp = win32api.GetProfileVal(moduleName, "dsp", "", mapFileName) if dsp=="": return None # We allow environment variables in the file name dsp = win32api.ExpandEnvironmentStrings(dsp) # If the path to the .DSP file is not absolute, assume it is relative # to the description file. if not os.path.isabs(dsp): dsp = os.path.join( os.path.split(mapFileName)[0], dsp) # Parse it to extract the source files. sourceFiles = parse_dsp(dsp) if sourceFiles is None: return None module = CExtension(moduleName, sourceFiles) # Put the path to the DSP into the environment so entries can reference it. os.environ['dsp_path'] = os.path.split(dsp)[0] os.environ['ini_path'] = os.path.split(mapFileName)[0] cl_options = win32api.GetProfileVal(moduleName, "cl", "", mapFileName) if cl_options: module.AddCompilerOption(win32api.ExpandEnvironmentStrings(cl_options)) exclude = win32api.GetProfileVal(moduleName, "exclude", "", mapFileName) exclude = exclude.split() if win32api.GetProfileVal(moduleName, "Unicode", 0, mapFileName): module.AddCompilerOption('/D UNICODE /D _UNICODE') libs = win32api.GetProfileVal(moduleName, "libs", "", mapFileName).split() for lib in libs: module.AddLinkerLib(win32api.ExpandEnvironmentStrings(lib)) for exc in exclude: if exc in module.sourceFiles: module.sourceFiles.remove(exc) return module # Given an MSVC DSP file, locate C source files it uses # returns a list of source files.
