$FrontEndInitializationFunction is a function that you can assign to execute when the front end link is first established by ConnectToFrontEnd[].
$FrontEndLaunchCommand specifies the command line that will be used by ConnectToFrontEnd[] to launch the front end.
$JavaExceptionHandler allows you to control how exceptions thrown in Java are handled in Mathematica.
$RelaxedTypeChecking is a flag that can be set to True to speed up the validation performed in Mathematica (via pattern tests) on arrays of data being sent as arguments to ...
AbortQ
(Mathematica LibraryLink C Function) mint AbortQ () returns TRUE if Mathematica is in the process of an abort.
int MTensor_clone (MTensor f, MTensor *t) is a library callback function that puts a clone of f into *t.
void MTensor_disownAll (MTensor t) disowns all references to an MTensor that was passed between a library function and Mathematica using shared memory management.
void MTensor_disown (MTensor t) disowns a reference to an MTensor that was passed between a library function and Mathematica using shared memory management.
void MTensor_free () is a library callback function that frees an MTensor.
mint MTensor_getRank (MTensor t) gets the rank of an MTensor.