The WriteArray method writes data to virtual serial port as a BYTE array of VARIANT type.

LONG WriteArray(

      VARIANT Buffer,     // data buffer



  • Buffer [in] : This is variable of VARIANT type that contains an array of Bytes (VT_ARRAY | VT_UI1).

Return Values : The WriteArray function returns the number of bytes written to virtual serial port.

Note: If virtual serial port was not created, the return value is 0 (zero). This method is identical to Write, however is specially created for VB6, C#, VB.Net development environments.

VB.NET example:

Dim Buff(3) As Byte


C# example:

byte[] Buff = new byte[10];