Windows 10 移动企业应用程序中找不到 Coredll 错误

Question

我们正在开发一款适用于 Windows 10 家移动企业的移动应用程序。现在有将系统时间更改为特定值的需求。我们尝试了以下

[DllImport("coredll.dll", SetLastError = true)]
    public static extern bool SetSystemTime(ref SYSTEMTIME st);



[StructLayout(LayoutKind.Sequential)]
            public struct SYSTEMTIME
            {
                public short wYear;
                public short wMonth;
                public short wDayOfWeek;
                public short wDay;
                public short wHour;
                public short wMinute;
                public short wSecond;
                public short wMilliseconds;
            }
      SYSTEMTIME st = new SYSTEMTIME();
            st.wYear = 2018; // must be short
            st.wMonth = 6;
            st.wDay = 21;
            st.wHour = 0;
            st.wMinute = 0;
            st.wSecond = 0;
 SetSystemTime(ref st);

但它抛出找不到 coredll。我们使用 uwp 和 C# 作为语言。

Answer 1

在 UWP 应用程序中使用 DllImport 调用 Win32 API 是一种 hack。

我找到了 and this blog post。

首先，您只能调用一组选定的API。 SetSystemTime 不在 list 中。设置系统时间是一个受限制的权限，我的猜测是系统没有给应用程序这样的权限。

其次，根据链接的答案，DllImport API 的签名是从 api-ms-win-core-sysinfo-l1-2-0.dll 之类的东西导入的，很奇怪，对吧？

Answer 2

您无法在UWP 应用程序中设置系统时间，并且DateTimeSettings API only available in IoT device. I found you want to import coredll.dll static method. Unfortunately, it is not available in UWP . For setting system time within UWP app, there are many roundabout way. For example, you could launch system date setting 页面然后设置时间。

var uriDateSetting = new Uri(@"ms-settings:dateandtime");

// Set the option to show a warning
var promptOptions = new Windows.System.LauncherOptions();
promptOptions.TreatAsUntrusted = true;

// Launch the URI
var success = await Windows.System.Launcher.LaunchUriAsync(uriDateSetting, promptOptions);

Windows 10 移动企业应用程序中找不到 Coredll 错误

Coredll not found error in Windows 10 mobile enterprise application

c#

dllimport

uwp