3

我正在尝试在这样的地铁模式下实现类似睡眠（毫秒）的行为

void win8_metro_mode_sleep(unsigned long long ms)
{
    HANDLE hEvent;
    DWORD ret;
    DWORD err;
    DWORD msec = ms;
    print_on_text_box("\nMSEC: ");
    print_on_text_box(((DWORD)ms).ToString());
    hEvent =CreateEventEx(NULL,L"sleep_event",NULL,EVENT_MODIFY_STATE);
     /*OpenEvent(NULL, TRUE, L"sleep_event");
    if(hEvent == NULL){
        print_on_text_box(">>>OpenEvent failed<<<\n");
    }*/
    /*if(ResetEvent(hEvent) == 0){
        print_on_text_box(">>>ResetEvent failed!<<<\n");
    }*/
    ret = WaitForSingleObjectEx(hEvent, msec, true);
    if(ret == WAIT_TIMEOUT) {
        print_on_text_box("Sleep Success!\n");
    }
    else if(ret == WAIT_OBJECT_0){
        print_on_text_box("WaitForSingleObjectEx, failed ...Err: The state of the specified object is signaled.\n");
    }
    else if(ret == WAIT_IO_COMPLETION){
        print_on_text_box("WaitForSingleObjectEx, failed ...Err: WAIT_IO_COMPLETION.\n");
    }
    else if(ret == WAIT_FAILED){
        print_on_text_box(" WaitForSingleObjectEx, failed ...Err: WAIT_FAILED: -->> ");
        err = GetLastError();
        //FormatMessage(
        //  FORMAT_MESSAGE_ALLOCATE_BUFFER | 
        //  FORMAT_MESSAGE_FROM_SYSTEM |
        //  FORMAT_MESSAGE_IGNORE_INSERTS,
        //  NULL,
        //  err,
        //  MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
        //  (LPTSTR) &lpMsgBuf,
        //  0, NULL );
        textbox_test_result->Text = textbox_test_result->Text + err.ToString() +" <<< \n";
    }
    CloseHandle(hEvent);
}

它打印：WaitForSingleObjectEx, failed ...Err: WAIT_FAILED: -->> 0 Windows 文档说GetLastError也支持 Metro 模式，但系统错误代码说只有桌面模式……这很奇怪！和 0 表示Success但它没有！任何人都可以帮助我至少GetLastError..我知道这是简单的实现，我也为桌面模式做了类似的事情..想知道有什么问题！

>>>>>>>>> 编辑 <<<<<<<<

不确定 GetLastError，但只需实现一种Sleep, 与 

WaitForSingleObjectEx(GetCurrentThread(), ms, FALSE);
4

1 回答 1

4

您可以使用在 WinStore 应用程序中工作的C++ sleep_for

#include <thread>
#include <chrono>

std::this_thread::sleep_for(std::chrono::milliseconds(1000));
于 2012-09-27T12:38:12.963 回答