本文介紹了如何在 windows (win32) 上獲取每個線程的 CPU 使用率的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！
問題描述
限時送ChatGPT賬號..
尋找 Win32 API 函數、C++ 或 Delphi 示例代碼，這些代碼告訴我線程(而不是進程的總數)的 CPU 使用率(百分比和/或總 CPU 時間).我有線程 ID.
Looking for Win32 API functions, C++ or Delphi sample code that tells me the CPU usage (percent and/or total CPU time) of a thread (not the total for a process). I have the thread ID.
我知道 Sysinternals Process Explorer 可以顯示此信息，但我的程序中需要此信息.
I know that Sysinternals Process Explorer can display this information, but I need this information inside my program.
推薦答案
在 RRUZ 上面的回答的幫助下，我終于為 Borland Delphi 想出了這個代碼:
With the help of RRUZ's answer above I finally came up with this code for Borland Delphi:
const
THREAD_TERMINATE = $0001;
THREAD_SUSPEND_RESUME = $0002;
THREAD_GET_CONTEXT = $0008;
THREAD_SET_CONTEXT = $0010;
THREAD_SET_INFORMATION = $0020;
THREAD_QUERY_INFORMATION = $0040;
THREAD_SET_THREAD_TOKEN = $0080;
THREAD_IMPERSONATE = $0100;
THREAD_DIRECT_IMPERSONATION = $0200;
THREAD_SET_LIMITED_INFORMATION = $0400;
THREAD_QUERY_LIMITED_INFORMATION = $0800;
THREAD_ALL_ACCESS = STANDARD_RIGHTS_REQUIRED or SYNCHRONIZE or $03FF;
function OpenThread(dwDesiredAccess: DWord;
bInheritHandle: Bool;
dwThreadId: DWord): DWord; stdcall; external 'kernel32.dll';
procedure TForm1.Button1Click(Sender: TObject);
var iii:integer;
handle:thandle;
creationtime,exittime,kerneltime,usertime:filetime;
begin
Handle:=OpenThread(THREAD_SET_INFORMATION or THREAD_QUERY_INFORMATION, False, windows.GetCurrentThreadId);
if handle<>0 then
begin
getthreadtimes(Handle,creationtime,exittime,kerneltime,usertime);
label1.caption:='Total time for Thread #'+inttostr(windows.GetCurrentThreadId)+': '+inttostr( (int64(kerneltime)+int64(usertime)) div 1000 )+' msec';
CloseHandle(Handle);
end;
end;
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