FUNCTION FCommit( ptrHandle AS IntPtr ) AS LOGIC
public static bool FCommit( IntPtr ptrHandle )
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()
1LOCAL ptrFile AS PTR 2ptrFile := FOpen2("myfile.txt", F0_READWRITE + FO_SHARED) 3FWrite3(ptrFile, Space(550), 550) 4// Keep other users/tasks updated 5FCommit(ptrFile)