Retrieves the name of the process associated with the specified process ID (PID).
QString GetProcessName(int iProcessId);
This method retrieves the name of the process with the specified ProcessId (PID). If such a process currently exists, this method returns the fully-qualified name of its executable; otherwise, it returns empty string.
Note that the System process does not technically have a name; passing its PID to this method will cause empty string to be returned.
This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.