You're reading the documentation for an older, but still supported version (1.33.4).
For information on the latest version, please have a look at 1.33.5.

get_system_version

This function returns the version information of each subsystem of the robot controller. It returns the teach pendant (SmartTP), controller, interpreter, inverter, safety board, JTS board and flange board versions together with the robot serial number and model through the SYSTEM_VERSION structure.

If the controller does not reply, get_system_version returns false.

Definition
DRFLEx.h within class CDRFLEx, public section

bool get_system_version(LPSYSTEM_VERSION pVersion) { return _get_system_version(_rbtCtrl, pVersion); };

Parameter

Parameter Name	Data Type	Default Value	Description
pVersion	SYSTEM_VERSION *		Pointer to a structure that stores the version information of each subsystem.

Return

Value	Type	Description
0	int	Error — failed to retrieve version information.
1	int	Success — version information successfully obtained.

Example

SYSTEM_VERSION tSysVerion = {};
drfl.get_system_version(&tSysVerion);
printf("version: %s\n", tSysVerion._szController);

This example retrieves detailed version information of the robot controller and prints the controller’s version string to the console.