National Instruments FOUNDATION NI-FBUS Hardware And Software User Manual page 112

Chapter 6 NI-FBUS Function Reference
Return Values
E_OK
E_INVALID_DESCRIPTOR
E_BUF_TOO_SMALL
E_RESOURCES
E_SERVER_CONNECTION_LOST
NI-FBUS Hardware and Software User Manual
The call was successful.
The descriptor is no longer valid.
The size of the data resulting from the read of all objects specified
in the list is larger than your buffer.
A system resource problem occurred. The resource problem is
usually a memory shortage.
The session established with the NI-FBUS Communications
Manager for this descriptor has been closed or lost.
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