How to use ::TerminateProcess to terminate a process?

[fantasy1215]

I only know the HWND as an input, first I use GetWindowThreadProcessId to get the process ID. But then how can I convert the process ID as the first input parameter of TerminateProcess which is HANDLE?

DWORD dwProcessID = 0;
::GetWindowThreadProcessId(hWndGot, &dwProcessID);

Thanks in advance!