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Python win32.ClearCommError方法代碼示例

本文整理匯總了Python中serial.win32.ClearCommError方法的典型用法代碼示例。如果您正苦於以下問題：Python win32.ClearCommError方法的具體用法？Python win32.ClearCommError怎麽用？Python win32.ClearCommError使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類serial.win32的用法示例。


在下文中一共展示了win32.ClearCommError方法的14個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: read

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def read(self, size=1):
        """\
        Read size bytes from the serial port. If a timeout is set it may
        return less characters as requested. With no timeout it will block
        until the requested number of bytes is read.
        """
        if not self.is_open:
            raise portNotOpenError
        if size > 0:
            win32.ResetEvent(self._overlapped_read.hEvent)
            flags = win32.DWORD()
            comstat = win32.COMSTAT()
            if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
                raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
            n = min(comstat.cbInQue, size) if self.timeout == 0 else size
            if n > 0:
                buf = ctypes.create_string_buffer(n)
                rc = win32.DWORD()
                read_ok = win32.ReadFile(
                    self._port_handle,
                    buf,
                    n,
                    ctypes.byref(rc),
                    ctypes.byref(self._overlapped_read))
                if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
                    raise SerialException("ReadFile failed ({!r})".format(ctypes.WinError()))
                result_ok = win32.GetOverlappedResult(
                    self._port_handle,
                    ctypes.byref(self._overlapped_read),
                    ctypes.byref(rc),
                    True)
                if not result_ok:
                    if win32.GetLastError() != win32.ERROR_OPERATION_ABORTED:
                        raise SerialException("GetOverlappedResult failed ({!r})".format(ctypes.WinError()))
                read = buf.raw[:rc.value]
            else:
                read = bytes()
        else:
            read = bytes()
        return bytes(read)
開發者ID:arpruss，項目名稱:gcodeplot，代碼行數:42，代碼來源:serialwin32.py

示例2: in_waiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def in_waiting(self):
        """Return the number of bytes currently in the input buffer."""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException('call to ClearCommError failed')
        return comstat.cbInQue
開發者ID:sketchpunk，項目名稱:android3dblendermouse，代碼行數:9，代碼來源:serialwin32.py

示例3: read

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def read(self, size=1):
        """\
        Read size bytes from the serial port. If a timeout is set it may
        return less characters as requested. With no timeout it will block
        until the requested number of bytes is read."""
        if not self._port_handle:
            raise portNotOpenError
        if size > 0:
            win32.ResetEvent(self._overlapped_read.hEvent)
            flags = win32.DWORD()
            comstat = win32.COMSTAT()
            if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
                raise SerialException('call to ClearCommError failed')
            if self.timeout == 0:
                n = min(comstat.cbInQue, size)
                if n > 0:
                    buf = ctypes.create_string_buffer(n)
                    rc = win32.DWORD()
                    read_ok = win32.ReadFile(self._port_handle, buf, n, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
                    if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
                        raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                    win32.GetOverlappedResult(self._port_handle, ctypes.byref(self._overlapped_read), ctypes.byref(rc), True)
                    read = buf.raw[:rc.value]
                else:
                    read = bytes()
            else:
                buf = ctypes.create_string_buffer(size)
                rc = win32.DWORD()
                read_ok = win32.ReadFile(self._port_handle, buf, size, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
                if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
                    raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                win32.GetOverlappedResult(self._port_handle, ctypes.byref(self._overlapped_read), ctypes.byref(rc), True)
                read = buf.raw[:rc.value]
        else:
            read = bytes()
        return bytes(read)
開發者ID:sketchpunk，項目名稱:android3dblendermouse，代碼行數:38，代碼來源:serialwin32.py

示例4: out_waiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def out_waiting(self):
        """Return how many bytes the in the outgoing buffer"""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException('call to ClearCommError failed')
        return comstat.cbOutQue


# Nur Testfunktion!!
開發者ID:sketchpunk，項目名稱:android3dblendermouse，代碼行數:12，代碼來源:serialwin32.py

示例5: inWaiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def inWaiting(self):
        """Return the number of characters currently in the input buffer."""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException('call to ClearCommError failed')
        return comstat.cbInQue
開發者ID:whaleygeek，項目名稱:microbit-gateway，代碼行數:9，代碼來源:serialwin32.py

示例6: read

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def read(self, size=1):
        """Read size bytes from the serial port. If a timeout is set it may
           return less characters as requested. With no timeout it will block
           until the requested number of bytes is read."""
        if not self.hComPort: raise portNotOpenError
        if size > 0:
            win32.ResetEvent(self._overlappedRead.hEvent)
            flags = win32.DWORD()
            comstat = win32.COMSTAT()
            if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
                raise SerialException('call to ClearCommError failed')
            if self.timeout == 0:
                n = min(comstat.cbInQue, size)
                if n > 0:
                    buf = ctypes.create_string_buffer(n)
                    rc = win32.DWORD()
                    err = win32.ReadFile(self.hComPort, buf, n, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
                    if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
                        raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                    err = win32.WaitForSingleObject(self._overlappedRead.hEvent, win32.INFINITE)
                    read = buf.raw[:rc.value]
                else:
                    read = bytes()
            else:
                buf = ctypes.create_string_buffer(size)
                rc = win32.DWORD()
                err = win32.ReadFile(self.hComPort, buf, size, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
                if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
                    raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                err = win32.GetOverlappedResult(self.hComPort, ctypes.byref(self._overlappedRead), ctypes.byref(rc), True)
                read = buf.raw[:rc.value]
        else:
            read = bytes()
        return bytes(read)
開發者ID:whaleygeek，項目名稱:microbit-gateway，代碼行數:36，代碼來源:serialwin32.py

示例7: outWaiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def outWaiting(self):
        """return how many characters the in the outgoing buffer"""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException('call to ClearCommError failed')
        return comstat.cbOutQue

    # functions useful for RS-485 adapters
開發者ID:whaleygeek，項目名稱:microbit-gateway，代碼行數:11，代碼來源:serialwin32.py

示例8: out_waiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def out_waiting(self):
        """Return how many bytes the in the outgoing buffer"""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException('call to ClearCommError failed')
        return comstat.cbOutQue
開發者ID:arpruss，項目名稱:gcodeplot，代碼行數:9，代碼來源:serialwin32.py

示例9: in_waiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def in_waiting(self):
        """Return the number of bytes currently in the input buffer."""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
        return comstat.cbInQue
開發者ID:whaleygeek，項目名稱:bitio，代碼行數:9，代碼來源:serialwin32.py

示例10: out_waiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def out_waiting(self):
        """Return how many bytes the in the outgoing buffer"""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException("ClearCommError failed ({!r})".format(ctypes.WinError()))
        return comstat.cbOutQue
開發者ID:whaleygeek，項目名稱:bitio，代碼行數:9，代碼來源:serialwin32.py

示例11: read

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def read(self, size=1):
        """\
        Read size bytes from the serial port. If a timeout is set it may
        return less characters as requested. With no timeout it will block
        until the requested number of bytes is read."""
        if not self._port_handle:
            raise portNotOpenError
        if size > 0:
            win32.ResetEvent(self._overlapped_read.hEvent)
            flags = win32.DWORD()
            comstat = win32.COMSTAT()
            if not win32.ClearCommError(self._port_handle, ctypes.byref(flags), ctypes.byref(comstat)):
                raise SerialException('call to ClearCommError failed')
            if self.timeout == 0:
                n = min(comstat.cbInQue, size)
                if n > 0:
                    buf = ctypes.create_string_buffer(n)
                    rc = win32.DWORD()
                    read_ok = win32.ReadFile(self._port_handle, buf, n, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
                    if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
                        raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                    win32.WaitForSingleObject(self._overlapped_read.hEvent, win32.INFINITE)
                    read = buf.raw[:rc.value]
                else:
                    read = bytes()
            else:
                buf = ctypes.create_string_buffer(size)
                rc = win32.DWORD()
                read_ok = win32.ReadFile(self._port_handle, buf, size, ctypes.byref(rc), ctypes.byref(self._overlapped_read))
                if not read_ok and win32.GetLastError() not in (win32.ERROR_SUCCESS, win32.ERROR_IO_PENDING):
                    raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                win32.GetOverlappedResult(self._port_handle, ctypes.byref(self._overlapped_read), ctypes.byref(rc), True)
                read = buf.raw[:rc.value]
        else:
            read = bytes()
        return bytes(read)
開發者ID:martinohanlon，項目名稱:microbit-serial，代碼行數:38，代碼來源:serialwin32.py

示例12: read

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def read(self, size=1):
        """\
        Read size bytes from the serial port. If a timeout is set it may
        return less characters as requested. With no timeout it will block
        until the requested number of bytes is read."""
        if not self.hComPort: raise portNotOpenError
        if size > 0:
            win32.ResetEvent(self._overlappedRead.hEvent)
            flags = win32.DWORD()
            comstat = win32.COMSTAT()
            if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
                raise SerialException('call to ClearCommError failed')
            if self.timeout == 0:
                n = min(comstat.cbInQue, size)
                if n > 0:
                    buf = ctypes.create_string_buffer(n)
                    rc = win32.DWORD()
                    err = win32.ReadFile(self.hComPort, buf, n, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
                    if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
                        raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                    err = win32.WaitForSingleObject(self._overlappedRead.hEvent, win32.INFINITE)
                    read = buf.raw[:rc.value]
                else:
                    read = bytes()
            else:
                buf = ctypes.create_string_buffer(size)
                rc = win32.DWORD()
                err = win32.ReadFile(self.hComPort, buf, size, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
                if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
                    raise SerialException("ReadFile failed (%r)" % ctypes.WinError())
                err = win32.GetOverlappedResult(self.hComPort, ctypes.byref(self._overlappedRead), ctypes.byref(rc), True)
                read = buf.raw[:rc.value]
        else:
            read = bytes()
        return bytes(read)
開發者ID:nortd，項目名稱:driveboardapp，代碼行數:37，代碼來源:serialwin32.py

示例13: outWaiting

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def outWaiting(self):
        """Return how many characters the in the outgoing buffer"""
        flags = win32.DWORD()
        comstat = win32.COMSTAT()
        if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
            raise SerialException('call to ClearCommError failed')
        return comstat.cbOutQue

    # functions useful for RS-485 adapters
開發者ID:nortd，項目名稱:driveboardapp，代碼行數:11，代碼來源:serialwin32.py

示例14: read

# 需要導入模塊: from serial import win32 [as 別名]
# 或者: from serial.win32 import ClearCommError [as 別名]
def read(self, size=1):
        """Read size bytes from the serial port. If a timeout is set it may
           return less characters as requested. With no timeout it will block
           until the requested number of bytes is read."""
        if not self.hComPort: raise portNotOpenError
        if size > 0:
            win32.ResetEvent(self._overlappedRead.hEvent)
            flags = win32.DWORD()
            comstat = win32.COMSTAT()
            if not win32.ClearCommError(self.hComPort, ctypes.byref(flags), ctypes.byref(comstat)):
                raise SerialException('call to ClearCommError failed')
            if self.timeout == 0:
                n = min(comstat.cbInQue, size)
                if n > 0:
                    buf = ctypes.create_string_buffer(n)
                    rc = win32.DWORD()
                    err = win32.ReadFile(self.hComPort, buf, n, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
                    if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
                        raise SerialException("ReadFile failed (%s)" % ctypes.WinError())
                    err = win32.WaitForSingleObject(self._overlappedRead.hEvent, win32.INFINITE)
                    read = buf.raw[:rc.value]
                else:
                    read = bytes()
            else:
                buf = ctypes.create_string_buffer(size)
                rc = win32.DWORD()
                err = win32.ReadFile(self.hComPort, buf, size, ctypes.byref(rc), ctypes.byref(self._overlappedRead))
                if not err and win32.GetLastError() != win32.ERROR_IO_PENDING:
                    raise SerialException("ReadFile failed (%s)" % ctypes.WinError())
                err = win32.GetOverlappedResult(self.hComPort, ctypes.byref(self._overlappedRead), ctypes.byref(rc), True)
                read = buf.raw[:rc.value]
        else:
            read = bytes()
        return bytes(read)
開發者ID:respeaker，項目名稱:get_started_with_respeaker，代碼行數:36，代碼來源:serialwin32.py


注：本文中的serial.win32.ClearCommError方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。