Provide complete information about the problem

1. Version of JNA and related jars: 5.13.0
2. Version and vendor of the java virtual machine: OpenJDK 17.0.8 LTS
3. Operating system: Windows
4. System architecture (CPU type, bitness of the JVM): x86-64, 64-Bit
5. Complete description of the problem: Win32 API functions SetPriorityClass() and SetThreadPriority() are missing from the com.sun.jna.platform.win32.Kernel32 class (from jna-platform-5.13.0.jar)
6. Steps to reproduce: Add jna-platform-5.13.0.jar to the class path and try to call the missing functions SetPriorityClass() or SetThreadPriority() from Kernel32.INSTANCE; they are not currently available 😞

Obviously, those functions, which have been available from Kernel32.DLL since (at least) Windows XP, have been forgotten in the implementation of com.sun.jna.platform.win32.Kernel32. Please consider adding the missing functions 😏

These functions are very useful to change the priority of a process and/or thread.

SetPriorityClass function

Sets the priority class for the specified process. This value together with the priority value of each thread of the process determines each thread's base priority level.

BOOL SetPriorityClass(
  [in] HANDLE hProcess,
  [in] DWORD  dwPriorityClass
);

Requirements

Minimum supported client: Windows XP
Minimum supported server: Windows Server 2003
Header: processthreadsapi.h
Library: Kernel32.lib
DLL: Kernel32.dll

Thanks!