Read Method
Reads data from the port.
Syntax
Visual Basic .NET | Function Read(ByRef DataBuffer As IntPtr, ByVal BytesToRead As UInt32) As UInt32 |
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Visual C# | UInt32 Read(IntPtr DataBuffer, UInt32 BytesToRead); |
Parameters
DataBuffer
[in, out] The buffer that receives the data.
BytesToRead
[in] Variable that receives the number of bytes read from port.
Return
Number of bytes read.
Errors
The method may throw exception. Use GetLastError method to get the error code.
ftvspcErrorFailed | 1 | The operation has not been completed. |
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ftvspcErrorInvalidParameter | 2 | Invalid parameter. |