GetForegroundWindow获取系统最前端的窗口

1、GetActiveWindow返回线程的活动窗口，而不是系统的活动窗口。如果要得到用户正在激活的窗口，应该使用 GetForegroundWindow，如可以用GetForegroundWindow判断当前lol是否在玩。

2、例如：

#include <IOSTREAM.H>#include <Windows.h>bool execwait(char *cmdline,char *cmd,int timeout);void main(){for (int i = 0;i < 2;i++){HANDLE hCurrentCursor = GetForegroundWindow ();cout<<hCurrentCursor<<endl;execwait(NULL,"cmd.exe /c  notepad.exe D:\\1.txt",0);Sleep(2000);}}bool execwait(char *cmdline,char *cmd,int timeout)  {      PROCESS_INFORMATION   pi;      STARTUPINFO si;      ZeroMemory( &pi, sizeof(pi) );      ZeroMemory( &si, sizeof(si) );      si.cb = sizeof(si);      si.dwFlags   =   STARTF_USESHOWWINDOW;      si.wShowWindow   =   SW_HIDE;      CreateProcess(cmdline,cmd,NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);      WaitForSingleObject(pi.hProcess ,timeout);      CloseHandle( pi.hProcess );      CloseHandle( pi.hThread );      return true;  }