[#BloombergLP-balb-ControlManager-hasDefaultHandler] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balb.adoc[balb]::xref:BloombergLP/balb/ControlManager.adoc[ControlManager]::hasDefaultHandler :relfileprefix: ../../../ :mrdocs: Return `true` if this control manager has a default message handler installed, and `false` otherwise. == Synopsis Declared in `<balb_controlmanager.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- bool hasDefaultHandler() const; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#