Different event types are identified by these event codes.

enum _PRL_EVENT_TYPE {
  PET_VM_INF_UNINITIALIZED_EVENT_CODE = 100000,
  PET_DSP_EVT_VM_STATE_CHANGED = 100001,
  PET_DSP_EVT_VM_CONFIG_CHANGED = 100002,
  PET_DSP_EVT_VM_DEV_STATE_CHANGED = 100003,
  PET_DSP_EVT_VM_CREATED = 100004,
  PET_DSP_EVT_VM_ADDED = 100005,
  PET_DSP_EVT_VM_DELETED = 100006,
  PET_DSP_EVT_VM_STARTED = 100007,
  PET_DSP_EVT_VM_STOPPED = 100008,
  PET_DSP_EVT_VM_ABORTED = 100009,
  PET_DSP_EVT_VM_RESETED = 100010,
  PET_DSP_EVT_VM_SUSPENDING = 100011,
  PET_DSP_EVT_VM_SUSPENDED = 100012,
  PET_DSP_EVT_VM_RESUMING = 100013,
  PET_DSP_EVT_VM_RESUMED = 100014,
  PET_DSP_EVT_VM_START_IO_FLOW = 100015,
  PET_DSP_EVT_VM_SNAPSHOTED = 100016,
  PET_DSP_EVT_VM_STATESAVED = PET_DSP_EVT_VM_SNAPSHOTED,
  PET_DSP_EVT_VM_RESTORED = 100017,
  PET_DSP_EVT_VM_STATERESTORED = PET_DSP_EVT_VM_RESTORED,
  PET_DSP_EVT_VM_NET_RECONNECTED = 100018,
  PET_DSP_EVT_VM_PAUSED = 100019,
  PET_DSP_EVT_VM_CONTINUED = 100020,
  PET_DSP_EVT_VM_CONFIG_APPLIED = 100021,
  PET_DSP_EVT_VM_STATISTICS_UPDATED = 100022,
  PET_DSP_EVT_VM_PROBLEM_REPORT_CREATED = 100023,
  PET_DSP_EVT_VM_ABOUT_TO_RESET = 100024,
  PET_DSP_EVT_VM_SECURITY_CHANGED = 100025,
  PET_DSP_EVT_VM_UNREGISTERED = 100026,
  PET_DSP_EVT_VM_REMOTE_DEV_READY_TO_START = 100027,
  PET_VM_EVT_VM_CONFIG_CHANGED = 100028,
  PET_VM_EVT_REQUEST_FILE_OPEN = 100029,
  PET_DSP_EVT_VM_MIGRATE_STARTED = 100030,
  PET_DSP_EVT_VM_MIGRATE_CANCELLED = 100031,
  PET_DSP_EVT_VM_MIGRATE_FINISHED = 100032,
  PET_DSP_EVT_VM_MIGRATE_PROGRESS_CHANGED = 100033,
  PET_DSP_EVT_VM_SNAPSHOTING = 100034,
  PET_DSP_EVT_VM_RESTORING = 100035,
  PET_DSP_EVT_VM_SNAPSHOTS_TREE_CHANGED = 100036,
  PET_DSP_EVT_VM_DELETING_STATE = 100037,
  PET_DSP_EVT_VM_STATE_DELETED = 100038,
  PET_DSP_EVT_VM_ABOUT_TO_START_DEINIT = 100039,
  PET_DSP_EVT_VM_ABOUT_TO_START_INIT = 100040,
  PET_DSP_EVT_VM_MEMORY_SWAPPING_STARTED = 100041,
  PET_DSP_EVT_VM_MEMORY_SWAPPING_FINISHED = 100042,
  PET_VM_EVT_UNMOUNT = 100043,
  PET_VM_EVT_MOUNT = 100044,
  PET_DSP_EVT_REBOOT_HOST = 100045,
  PET_DSP_EVT_REBOOT_HOST_MANUAL_TO_INIT_VTD_DEVICES = 100046,
  PET_DSP_EVT_BACKUP_STARTED = 100047,
  PET_DSP_EVT_BACKUP_CANCELLED = 100048,
  PET_DSP_EVT_CREATE_BACKUP_FINISHED = 100049,
  PET_DSP_EVT_BACKUP_PROGRESS_CHANGED = 100050,
  PET_DSP_EVT_JOB_PROGRESS_CHANGED = 100051,
  PET_DSP_EVT_RESTORE_PROGRESS_CHANGED = 100052,
  PET_DSP_EVT_DISK_RESIZE_STARTED = 100053,
  PET_DSP_EVT_DISK_RESIZE_FINISHED = 100054,
  PET_DSP_EVT_DISK_RESIZE_PROGRESS_CHANGED = 100055,
  PET_DSP_EVT_VM_ADDITION_STATE_CHANGED = 100056,
  PET_DSP_EVT_RESTORE_BACKUP_FINISHED = 100057,
  PET_DSP_EVT_REMOVE_BACKUP_FINISHED = 100058,
  PET_DSP_EVT_VM_MIGRATE_CANCELLED_DISP = 100059,
  PET_DSP_EVT_VM_MIGRATE_FINISHED_DISP = 100060,
  PET_DSP_EVT_TIME_MACHINE_BACKUP_IS_OVER = 100061,
  PET_DSP_EVT_CONVERSION_DISKS_PROGRESS_CHANGED = 100062,
  PET_DSP_EVT_CONVERSION_DISKS_PROGRESS_FINISHED = 100063,
  PET_DSP_EVT_CONVERT_THIRD_PARTY_PROGRESS_CHANGED = 100064,
  PET_DSP_EVT_CONNECTED_TO_PROXY = 100065,
  PET_DSP_EVT_DISCONNECTED_FROM_PROXY = 100066,
  PET_DSP_EVT_CONNECTING_TO_PROXY = 100067,
  PET_DSP_EVT_RECONFIG_VM_PROGRESS_CHANGED = 100068,
  PET_DSP_EVT_VM_MIGRATE_WAIT_REMOUNT = 100069,
  PET_DSP_EVT_VM_CONFIG_APPLY_FINISHED = 100070,
  PET_DSP_EVT_VM_IO_CLIENT_STATISTICTS = 100071,
  PET_DSP_EVT_VM_SET_HOST_TIME = 100072,
  PET_DSP_EVT_VM_LOW_HOST_MEMORY = 100073,
  PET_DSP_EVT_VM_MAC_OS_VER = 100074,
  PET_DSP_EVT_VM_PAUSED_BY_HOST_SLEEP = 100075,
  PET_DSP_EVT_VM_CONTINUED_BY_HOST_WAKEUP = 100076,
  PET_DSP_EVT_VM_FROZEN = 100077,
  PET_DSP_EVT_VM_UNFROZEN = 100078,
  PET_DSP_EVT_CONNECTION_CLIENT_INFO_WAS_SET = 100079,
  PET_DSP_EVT_CONNECTION_WAS_CLOSED = 100080,
  PET_DSP_EVT_OP_ACCEPTED = 100100,
  PET_DSP_EVT_OP_REJECTED = 100101,
  PET_DSP_EVT_OP_RESULT = 100102,
  PET_DSP_EVT_DIR_STATE_CHANGED = 100200,
  PET_DSP_EVT_HOST_STATISTICS_UPDATED = 100201,
  PET_DSP_EVT_HW_CONFIG_CHANGED = 100202,
  PET_DSP_EVT_CLIENT_CONNECTED = 100300,
  PET_DSP_EVT_CLIENT_DISCONNECTED = 100301,
  PET_DSP_EVT_CLIENT_REJECTED = 100302,
  PET_DSP_EVT_FOUND_LOST_VM_CONFIG = 100400,
  PET_DSP_EVT_HAS_EVENT = 100401,
  PET_DSP_EVT_RECONNECT = 100402,
  PET_DSP_EVT_DISP_CONNECTION_CLOSED = 100403,
  PET_DSP_EVT_DISP_SHUTDOWN = 100404,
  PET_DSP_EVT_USER_PROFILE_CHANGED = 100500,
  PET_DSP_EVT_COMMON_PREFS_CHANGED = 100501,
  PET_DSP_EVT_VM_MESSAGE = 100502,
  PET_DSP_EVT_VM_QUESTION = 100503,
  PET_JOB_DELETE_VM_PROGRESS_CHANGED = 100504,
  PET_VM_INF_START_FILE_COPYING = 100505,
  PET_VM_INF_END_FILE_COPYING = 100506,
  PET_DSP_EVT_ERROR_MESSAGE = 100507,
  PET_DSP_EVT_WARNING_MESSAGE = 100508,
  PET_JOB_HDD_CREATE_PROGRESS_CHANGED = 100509,
  PET_JOB_FILE_COPY_PROGRESS_CHANGED = 100510,
  PET_JOB_SUSPEND_PROGRESS_CHANGED = 100511,
  PET_JOB_RESUME_PROGRESS_CHANGED = 100512,
  PET_DSP_EVT_ANSWER_TO_VM_WAS_DONE = 100513,
  PET_DSP_EVT_LICENSE_CHANGED = 100514,
  PET_JOB_CREATE_SNAPSHOT_PROGRESS_CHANGED = 100515,
  PET_JOB_SWITCH_TO_SNAPSHOT_PROGRESS_CHANGED = 100516,
  PET_JOB_DELETE_SNAPSHOT_PROGRESS_CHANGED = 100517,
  PET_JOB_COMMIT_UNFINISHED_DISK_OP_PROGRESS_CHANGED = 100518,
  PET_DSP_EVT_COMMIT_UNFINISHED_DISK_OP_STARTED = 100519,
  PET_DSP_EVT_COMMIT_UNFINISHED_DISK_OP_FINISHED = 100520,
  PET_DSP_EVT_VM_ENCRYPT_PROGRESS_CHANGED = 100521,
  PET_DSP_EVT_VM_DECRYPT_PROGRESS_CHANGED = 100522,
  PET_JOB_STAGE_PROGRESS_CHANGED = 100523,
  PET_VM_INF_START_BUNCH_COPYING = 100524,
  PET_VM_INF_END_BUNCH_COPYING = 100525,
  PET_DSP_EVT_SMC_USER_FORCE_DISCONNECTED = 100600,
  PET_DSP_EVT_SMC_CANCEL_USER_COMMAND = 100601,
  PET_DSP_EVT_SMC_DISPATCHER_SHUTDOWN = 100602,
  PET_IO_SCREEN_SIZE = 100700,
  PET_IO_SLIDING_MOUSE_FLAG = 100702,
  PET_IO_DEVICE_IS_IN_USE = 100703,
  PET_IO_KEYBOARD_LEDS = 100704,
  PET_IO_STATE = 100705,
  PET_IO_SCREEN_CAPTURED = 100706,
  PET_IO_BEFORE_SCREEN_SIZE = 100707,
  PET_IO_REMOTE_COMMAND = 100708,
  PET_IO_MOUSE_CURSOR_CHANGED = 100709,
  PET_IO_MOUSE_CURSOR_HID = 100710,
  PET_IO_MOUSE_CURSOR_SET = 100711,
  PET_IO_DYNRES_TOOL_STATUS = 100712,
  PET_IO_TOOLS_UTILITY_COMMAND = 100713,
  PET_IO_TOOLS_VM_SHUTDOWN = 100714,
  PET_IO_TOOLS_CLIPBOARD_DATA = 100715,
  PET_IO_SCREEN_SURFACE_DETACHED = 100716,
  PET_IO_TOOLS_SIA_DATA = 100717,
  PET_IO_TOOLS_VMCTG_COMMAND = 100718,
  PET_IO_TOOLS_DRAGDROP_DATA = 100719,
  PET_IO_TOOLS_GENERAL_COMMAND = 100720,
  PET_IO_TOOLS_DESKTOP_UTILITY_STATE = 100721,
  PET_IO_DISPLAY_SCREEN_SIZE = 100722,
  PET_IO_DISPLAY_BEFORE_SCREEN_SIZE = 100723,
  PET_IO_DISPLAY_SCREEN_CAPTURED = 100724,
  PET_IO_SWITCH_VESA_MODE = 100725,
  PET_IO_TOOLS_LANGUAGE_HOTKEY_CHANGED = 100726,
  PET_IO_AVAILABLE_DISPLAYS = 100727,
  PET_IO_SCREEN_SURFACE_ATTACHED = 100728,
  PET_IO_UIEMU_ELEMENT_AT_POS = 100729,
  PET_IO_AUDIO_OUTPUT_DATA = 100730,
  PET_IO_AUDIO_OUTPUT_ENCODING_SET = 100731,
  PET_IO_AUDIO_OUTPUT_STREAM_STARTED = 100732,
  PET_IO_AUDIO_OUTPUT_STOP = 100734,
  PET_IO_CVSRC_OPEN = 100735,
  PET_IO_CVSRC_CLOSE = 100736,
  PET_IO_SSO_GET_CREDENTIALS = 100737,
  PET_IO_MOUSE_CURSOR_MOVED = 100738,
  PET_IO_UIEMU_CARET_INFO = 100739,
  PET_IO_DISPLAY_GAMMA_CHANGED = 100740,
  PET_DSP_EVT_VM_TOOLS_STATE_CHANGED = 100800,
  PET_DSP_EVT_VM_COMPACT_PROCESSING = 100801,
  PET_DSP_EVT_VM_COMPACT_FINISHED = 100802,
  PET_DSP_EVT_VM_COMPRESSOR_FINISHED = 100803,
  PET_DSP_EVT_VM_COMPRESSOR_CONTINUED = 100804,
  PET_DSP_EVT_VM_SOFTWARE_INSTALLED = 100805,
  PET_DSP_EVT_VM_PIS_NOTIFICATION_ASK_TO_INSTALL = 100806,
  PET_DSP_EVT_VM_VIRTUAL_DEVICES_STATE_CHANGED = 100807,
  PET_DSP_EVT_PERFSTATS = 100900,
  PET_DSP_EVT_VM_PERFSTATS = 100901,
  PET_DSP_EVT_VM_UPGRADE_INIT = 101000,
  PET_DSP_EVT_VM_UPGRADE_INIT_TIMEOUT = 101001,
  PET_DSP_EVT_VM_UPGRADE_STAGE_1 = 101002,
  PET_DSP_EVT_VM_UPGRADE_STAGE_2 = 101003,
  PET_DSP_EVT_VM_UPGRADE_STAGE_3 = 101004,
  PET_DSP_EVT_VM_UPGRADE_COMPLETED = 101005,
  PET_DSP_EVT_VM_UPGRADE_UNKNOWN_ERROR = 101006,
  PET_DSP_EVT_VM_UPGRADE_INIT_VMW = 101007,
  PET_DSP_EVT_VM_UPGRADE_INIT_PHY = 101008,
  PET_IO_READY_TO_ACCEPT_STDIN_PKGS = 101100,
  PET_VM_READY_TO_BOOT = 101200,
  PET_VM_READY_TO_PRINT = 101201,
  PET_VM_DEFAULT_SOUND_RECONNECTED = 101202,
  PET_VM_EVT_UNMOUNT_USB_MEDIA = 101203,
  PET_VM_EVT_UNMOUNT_DVD_MEDIA = 101204,
  PET_DSP_EVT_APPLIANCE_DOWNLOAD_PROGRESS_CHANGED = 101300,
  PET_DSP_EVT_APPLIANCE_DOWNLOAD_FINISHED = 101301,
  PET_DSP_EVT_APPLIANCE_ARCHIVE_UNPACK_STARTED = 101302,
  PET_DSP_EVT_APPLIANCE_ARCHIVE_UNPACK_FINISHED = 101303,
  PET_DSP_EVT_APPLIANCE_REGISTER_VM_STARTED = 101304,
  PET_DSP_EVT_APPLIANCE_REGISTER_VM_FINISHED = 101305,
  PET_DSP_EVT_CEP_WRITE_STRING = 101400,
  PET_DSP_COHERENCE_FAKE_STUB_NOTIFICATION = 101401,
  PET_DSP_EVT_VM_WAS_ENCRYPTED = 101500,
  PET_DSP_EVT_VM_WAS_DECRYPTED = 101501,
  PET_DSP_EVT_ENCRYPTED_VM_PASSWORD_CHANGED = 101502,
  PET_DSP_EVT_ENCRYPTED_VM_NEED_AUTH_AGAIN = 101503,
  PET_DSP_EVT_VM_WAS_PROTECTED = 101504,
  PET_DSP_EVT_VM_WAS_UNPROTECTED = 101505,
  PET_VM_EVT_TIS_BACKUP_WRITE = 101600,
  PET_IO_EVT_DISCONNECT_WITH_REASON = 101700,
  PET_VIDEO_RECEIVER_FORMAT = 101800,
  PET_VIDEO_RECEIVER_FRAME = 101801,
  PET_VIDEO_RECEIVER_CLOSED = 101802,
  PET_VIDEO_CAPTURE_GEOMETRY = 101803,
  PET_VIDEO_RECEIVER_CONNECTION_STATE = 101804,
  PET_PTM_EVT_PROPERTY_CHANGED = 101900,
  PET_PTM_EVT_OBJECT_DELETED = 101901,
  PET_PTM_EVT_OBJECT_CREATED = 101902,
  PET_PTM_EVT_SUBSCRIBED = 101903,
  PET_PTM_EVT_RPC_COMPLETED = 101904
};