FUNCTION FWrite( pFile AS USUAL, c AS USUAL, nCount AS USUAL ) AS DWORD
public static uint FWrite( [DefaultParameterValueAttribute(0, 1)] USUAL pFile, [DefaultParameterValueAttribute(0, 1)] USUAL c, [DefaultParameterValueAttribute(0, 1)] USUAL nCount )
The low level File IO functions in the X# runtime are using .Net filestreams in the background. |
That means that the file handles returned by FOpen() and FCreate() are not 'normal' file handles, but unique identifiers that are used to find the underlying stream object in a collection of streams in the runtime.
That also means that you can't use file handles for functions such as FRead() and FWrite() that were not created in the X# runtime.
If you want to access the underlying FileStream, then you should call the function FGetStream()