Python wintypes.BYTE屬性代碼示例

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def get_printer_names():
    names = []
    info = ctypes.POINTER(BYTE)()
    pcbNeeded = DWORD(0)
    pcReturned = DWORD(0)
    winspool.EnumPrintersW(PRINTER_ENUM_LOCAL, NAME, 1, ctypes.byref(info),
                           0, ctypes.byref(pcbNeeded), ctypes.byref(pcReturned))
    bufsize = pcbNeeded.value
    if bufsize:
        buff = msvcrt.malloc(bufsize)
        winspool.EnumPrintersW(PRINTER_ENUM_LOCAL, NAME, 1, buff, bufsize,
                               ctypes.byref(pcbNeeded),
                               ctypes.byref(pcReturned))
        info = ctypes.cast(buff, ctypes.POINTER(PRINTER_INFO_1))
        for i in range(pcReturned.value):
            names.append(info[i].pName)
        msvcrt.free(buff)
    return names 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def is_color_printer(prtname):
    ret = False
    if not prtname:
        prtname = get_default_printer()
    hptr = open_printer(prtname)
    info = ctypes.POINTER(BYTE)()
    cbBuf = DWORD(0)
    pcbNeeded = DWORD(0)
    winspool.GetPrinterA(hptr, 2, ctypes.byref(info),
                         cbBuf, ctypes.byref(pcbNeeded))
    bufsize = pcbNeeded.value
    if bufsize:
        buff = msvcrt.malloc(bufsize)
        winspool.GetPrinterA(hptr, 2, buff, bufsize, ctypes.byref(pcbNeeded))
        info = ctypes.cast(buff, ctypes.POINTER(PRINTER_INFO_2))
        ret = info.contents.pDevMode.contents.dmColor == 2
        msvcrt.free(buff)
    close_printer(hptr)
    return ret 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def encrypt(data, non_interactive=0):
    blobin = DATA_BLOB(
        cbData=len(data), pbData=cast(c_char_p(data), POINTER(wintypes.BYTE))
    )
    blobout = DATA_BLOB()

    if not CryptProtectData(
        byref(blobin),
        'python-keyring-lib.win32crypto',
        None,
        None,
        None,
        CRYPTPROTECT_UI_FORBIDDEN,
        byref(blobout),
    ):
        raise OSError("Can't encrypt")

    encrypted = create_string_buffer(blobout.cbData)
    memmove(encrypted, blobout.pbData, blobout.cbData)
    windll.kernel32.LocalFree(blobout.pbData)
    return encrypted.raw 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def decrypt(encrypted, non_interactive=0):
    blobin = DATA_BLOB(
        cbData=len(encrypted), pbData=cast(c_char_p(encrypted), POINTER(wintypes.BYTE))
    )
    blobout = DATA_BLOB()

    if not CryptUnprotectData(
        byref(blobin),
        'python-keyring-lib.win32crypto',
        None,
        None,
        None,
        CRYPTPROTECT_UI_FORBIDDEN,
        byref(blobout),
    ):
        raise OSError("Can't decrypt")

    data = create_string_buffer(blobout.cbData)
    memmove(data, blobout.pbData, blobout.cbData)
    windll.kernel32.LocalFree(blobout.pbData)
    return data.raw 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def _get_thumbprint_buffer(thumbprint_str):
        thumbprint_bytes = encoding.hex_to_bytes(thumbprint_str)
        return ctypes.cast(
            ctypes.create_string_buffer(thumbprint_bytes),
            ctypes.POINTER(wintypes.BYTE *
                           len(thumbprint_bytes))).contents 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def byte_buffer(length):
    """Get a buffer for a string"""
    return (BYTE*length)() 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def send_vcp_code(self, code: int, value: int) -> bool:
        """
        send vcp code to monitor.
        
        https://msdn.microsoft.com/en-us/library/dd692979(v=vs.85).aspx
        BOOL SetVCPFeature(
            _In_  HANDLE hMonitor,
            _In_  BYTE bVCPCode,
            _In_  DWORD dwNewValue
        );
        
        :param code: VCP Code
        :param value: Data
        :return: Win32 API return
        """
        if code is None:
            _LOGGER.error('vcp code to send is None. ignored.')
            return False
        
        api_call = ctypes.windll.Dxva2.SetVCPFeature
        code = wintypes.BYTE(code)
        new_value = wintypes.DWORD(value)
        api_call.restype = ctypes.c_bool
        ret_ = api_call(self._phy_monitor_handle, code, new_value)
        if not ret_:
            _LOGGER.error('send vcp command failed: ' + hex(code))
            _LOGGER.error(ctypes.WinError())
        return ret_ 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def read_vcp_code(self, code: int) -> Tuple[int, int]:
        """
        send vcp code to monitor, get current value and max value.
        
        https://msdn.microsoft.com/en-us/library/dd692953(v=vs.85).aspx
        BOOL GetVCPFeatureAndVCPFeatureReply(
            _In_   HANDLE hMonitor,
            _In_   BYTE bVCPCode,
            _Out_  LPMC_VCP_CODE_TYPE pvct,
            _Out_  LPDWORD pdwCurrentValue,
            _Out_  LPDWORD pdwMaximumValue
        );
        
        :param code: VCP Code
        :return: current_value, max_value
        """
        if code is None:
            _LOGGER.error('vcp code to send is None. ignored.')
            return 0, 0
        
        api_call = ctypes.windll.Dxva2.GetVCPFeatureAndVCPFeatureReply
        api_in_vcp_code = wintypes.BYTE(code)
        api_out_current_value = wintypes.DWORD()
        api_out_max_value = wintypes.DWORD()
        
        if not api_call(self._phy_monitor_handle, api_in_vcp_code, None,
                        ctypes.byref(api_out_current_value), ctypes.byref(api_out_max_value)):
            _LOGGER.error('get vcp command failed: ' + hex(code))
            _LOGGER.error(ctypes.WinError())
        return api_out_current_value.value, api_out_max_value.value 

# 需要導入模塊: from ctypes import wintypes [as 別名]
# 或者: from ctypes.wintypes import BYTE [as 別名]
def import_pfx_certificate(self, pfx_data, pfx_password=None,
                               machine_keyset=True, store_name=STORE_NAME_MY):
        cert_context_p = None
        import_store_handle = None
        store_handle = None

        try:
            pfx_blob = cryptoapi.CRYPTOAPI_BLOB()
            pfx_blob.cbData = len(pfx_data)
            pfx_blob.pbData = ctypes.cast(
                pfx_data, ctypes.POINTER(wintypes.BYTE))

            import_store_handle = cryptoapi.PFXImportCertStore(
                ctypes.pointer(pfx_blob), pfx_password, 0)
            if not import_store_handle:
                raise cryptoapi.CryptoAPIException()

            cert_context_p = cryptoapi.CertFindCertificateInStore(
                import_store_handle,
                cryptoapi.X509_ASN_ENCODING | cryptoapi.PKCS_7_ASN_ENCODING,
                0, cryptoapi.CERT_FIND_ANY, None, None)
            if not cert_context_p:
                raise cryptoapi.CryptoAPIException()

            if machine_keyset:
                flags = cryptoapi.CERT_SYSTEM_STORE_LOCAL_MACHINE
            else:
                flags = cryptoapi.CERT_SYSTEM_STORE_CURRENT_USER

            store_handle = cryptoapi.CertOpenStore(
                cryptoapi.CERT_STORE_PROV_SYSTEM, 0, 0, flags,
                six.text_type(store_name))
            if not store_handle:
                raise cryptoapi.CryptoAPIException()

            if not cryptoapi.CertAddCertificateContextToStore(
                    store_handle, cert_context_p,
                    cryptoapi.CERT_STORE_ADD_REPLACE_EXISTING, None):
                raise cryptoapi.CryptoAPIException()

        finally:
            if import_store_handle:
                cryptoapi.CertCloseStore(import_store_handle, 0)
            if cert_context_p:
                cryptoapi.CertFreeCertificateContext(cert_context_p)
            if store_handle:
                cryptoapi.CertCloseStore(store_handle, 0)