id()

int32 xtd::diagnostics::process::id

(

)

const

Gets the unique identifier for the associated process.

Returns

The system-generated unique identifier of the process that is referenced by this process instance.

Exceptions

xtd::invalid_operation_exception

The process's Id property has not been set.

Remarks

The process xtd::diagnostics::process::id is not valid if the associated process is not running. Therefore, you should ensure that the process is running before attempting to retrieve the xtd::diagnostics::process::id property. Until the process terminates, the process identifier uniquely identifies the process throughout the system.

You can connect a process that is running on a local or remote computer to a new xtd::diagnostics::process instance by passing the process identifier to the xtd::diagnostics::process::get_process_by_id method. xtd::diagnostics::process::get_process_by_id is a static method that creates a new component and sets the xtd::diagnostics::process::id property for the new xtd::diagnostics::process instance automatically.

Process identifiers can be reused by the system. The xtd::diagnostics::process::id property value is unique only while the associated process is running. After the process has terminated, the system can reuse the xtd::diagnostics::process::id property value for an unrelated process.

Because the identifier is unique on the system, you can pass it to other threads as an alternative to passing a xtd::diagnostics::process instance. This action can save system resources yet guarantee that the process is correctly identified.