[#BloombergLP-ball-FileObserver-enableStdoutLoggingPrefix] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/FileObserver.adoc[FileObserver]::enableStdoutLoggingPrefix :relfileprefix: ../../../ :mrdocs: Enable this file observer to use the long output format when logging to `stdout`. Henceforth, this file observer will use the output format for `stdout` logging that was set by the most recent call to `setLogFormat`, or the default long output format ("n%d %p:%t %s %f:%l %c %m %un") if `setLogFormat` has not yet been called. This method has no effect if the long output format for `stdout` logging is already enabled. == Synopsis Declared in `<ball_fileobserver.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- void enableStdoutLoggingPrefix(); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#