Packet.ReadBytes Method

Reads an array of bytes from the Packet object and points the internal iterator to the next data object in the packet.

Namespace:  Microsoft.SmartDevice.Connectivity
Assembly:  Microsoft.SmartDevice.Connectivity (in Microsoft.SmartDevice.Connectivity.dll)

Syntax

'Declaration
Public Function ReadBytes As Byte()

'Usage
Dim instance As Packet 
Dim returnValue As Byte()

returnValue = instance.ReadBytes()

public byte[] ReadBytes()

public:
array<unsigned char>^ ReadBytes()

public function ReadBytes() : byte[]

Return Value

Type: array<System.Byte[]
The array of bytes read from the packet.

Exceptions

Remarks

When the last data object in the packet is read, the method sets the packet's end-of-packet (EOP) flag to true and increments the iterator. The next call to the Read method throws an InvalidOperationException. Users should always check for EOP before calling Read.

Examples

' While stream is connected, try to read a packet. 
While ps.IsConnected()
    If ps.IsPacketAvailable() Then
        packet = ps.Read()
        While Not packet.IsEndOfPacket()
            Select Case packet.ReadDataType()
                Case DataType.BoolType
                    Dim boolValue As Boolean = packet.ReadBool()
                Case DataType.ByteArrayType
                    Dim buffer As Byte() = packet.ReadBytes()
                Case DataType.ByteType
                    Dim byteValue As Byte = packet.ReadByte()
                Case DataType.CharType
                    Dim charValue As Char = packet.ReadChar()
                Case DataType.Int32Type
                    Console.WriteLine("Int32Type:  " + packet.ReadInt32().ToString())
                Case DataType.StringType
                    Console.WriteLine("String:  " + packet.ReadString())
                Case Else 
            End Select 
        End While 
        Exit While 
    End If
    System.Threading.Thread.Sleep(1000)
End While
ps.Close()
device.Disconnect()

// While stream is connected, try to read a packet. 
while (ps.IsConnected())
{
    if (ps.IsPacketAvailable())
    {
        packet = ps.Read();
        while (!packet.IsEndOfPacket())
        {
            switch (packet.ReadDataType())
            {
                case DataType.BoolType:
                    bool boolValue = packet.ReadBool();
                    break;
                case DataType.ByteArrayType:
                    byte[] buffer = packet.ReadBytes();
                    break;
                case DataType.ByteType:
                    byte byteValue = packet.ReadByte();
                    break;
                case DataType.CharType:
                    char charValue = packet.ReadChar();
                    break;
                case DataType.Int32Type:
                    Console.WriteLine("Int32Type:  " + packet.ReadInt32().ToString());
                    break;
                case DataType.StringType:
                    Console.WriteLine("String:  " + packet.ReadString());
                    break;
                default:
                    break;
            }
        }
        break;
    }
    System.Threading.Thread.Sleep(1000);
}
ps.Close();
device.Disconnect();

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

Packet Class

Packet Members

Microsoft.SmartDevice.Connectivity Namespace