超难问题：如何根据一个窗口句柄取得 ThreadId ( 积分: 100 )

api函数 GetWindowThreadProcessId 好像只能取的 ProcessId，请教取得 ThreadId 的方法

GetWindowThreadProcessId&nbsp;函数有两个作用，如果第er个参数为空，则取ThreadID<br>如果第二个参数是ThreadIDID，则取ProcessID<br><br>function&nbsp;GetWindowThreadProcessId(hWnd:&nbsp;HWND;&nbsp;lpdwProcessId:&nbsp;Pointer):&nbsp;DWORD;&nbsp;external&nbsp;user32&nbsp;name&nbsp;'GetWindowThreadProcessId';&nbsp;&nbsp;这个取<br>function&nbsp;GetWindowThreadProcessId(hWnd:&nbsp;HWND;&nbsp;var&nbsp;dwProcessId:&nbsp;DWORD):&nbsp;DWORD;&nbsp;external&nbsp;user32&nbsp;name&nbsp;'GetWindowThreadProcessId';<br><br><br><br>FThreadID&nbsp;:=&nbsp;GetWindowThreadProcessId(AOwnerWND,&nbsp;nil);<br>FProcessID&nbsp;:=&nbsp;GetWindowThreadProcessId(AOwnerWND,&nbsp;FThreadID);<br><br>给分吧