There are two main methods for obtaining a handle of type PHT_SYSTEM_STATISTICS:

1. Using PrlSrv_GetStatistics (for host statistics) or PrlVm_GetStatistics (for virtual machine statistics).
2. Using PrlSrv_SubscribeToHostStatistics (for host statistics) or PrlVm_SubscribeToGuestStatistics (for virtual machine statistics) to receive statistics events, and PrlSrv_UnsubscribeFromHostStatistics or PrlVm_UnsubscribeFromGuestStatistics to stop receiving statistics events. A callback function (event handler) implementation is required to use subscriptions.

The PHT_SYSTEM_STATISTICS object provides methods for obtaining handles to objects containing the performance data of a specific type. It also provides methods for obtaining memory statistics directly from it. The steps in obtaining the performance data are as follows:

1. Obtain a handle of type PHT_SYSTEM_STATISTICS.
2. To obtain memory statistics, use the functions provided by the object.
3. For other statistics (CPU, disk, network, etc.), first use a corresponding function to obtain a handle of a particular type, and then use the functions of the received object to get the statistics.

Functions, Functions by Handle, Legend