The FLUSH procedure causes all buffered output on the specified file units to be written. IDL uses buffered output for reasons of efficiency. This buffering leads to rare occasions where a program needs to be certain that output data are not waiting in a buffer, but have actually been output.
Syntax
FLUSH, Unit1, ..., Unitn
Arguments
Uniti
The file units (logical unit numbers) to flush.
Version History
See Also
CLOSE, EXIT