应用程序启动时的 EntryPointNotFoundException TaskDialog 但稍后运行良好

Posted 2023-03-14

【中文标题】应用程序启动时的 EntryPointNotFoundException TaskDialog 但稍后运行良好

【英文标题】：EntryPointNotFoundException TaskDialog at start of Application but runs fine later

【发布时间】：2012-09-28 03:42:39

【问题描述】：

我有直接来自 .NET 的 WindowsAPI 包（包装器）的 TaskDialog 源，但是每当我尝试直接在我的程序的静态 void Main() 区域中打开一个 TaskDialog 时，它都会抛出一个 EntryPointNotFoundException。但是，TaskDialog 稍后会在我的代码中生成并显示得非常好。这是为什么呢？

抛出 EntryPointNotFoundException 的代码是

/// <summary>
/// TaskDialogIndirect taken from commctl.h
/// </summary>
/// <param name="pTaskConfig">All the parameters about the Task Dialog to Show.</param>
/// <param name="pnButton">The push button pressed.</param>
/// <param name="pnRadioButton">The radio button that was selected.</param>
/// <param name="pfVerificationFlagChecked">The state of the verification checkbox on dismiss of the Task Dialog.</param>
[DllImport("ComCtl32", CharSet = CharSet.Unicode, PreserveSig = false)]
internal static extern void TaskDialogIndirect(
    [In] ref TASKDIALOGCONFIG pTaskConfig,
    [Out] out int pnButton,
    [Out] out int pnRadioButton,
    [Out] out bool pfVerificationFlagChecked);

但让我感到震惊的是，不同地方的相同代码可以工作一次，但不能在其他时间工作。这可能与程序没有加载引用或其他东西有关，但这让我大吃一惊。我的应用入口处的代码是

try

    var taskDialog = new TaskDialog();
    taskDialog.WindowTitle = ".NET Update Notification";
    taskDialog.MainInstruction = "";

    taskDialog.MainIcon = TaskDialogIcon.Error;

    taskDialog.EnableHyperlinks = true;
    taskDialog.Content =
        "Your .NET Framework Version is out-of-date.\nPlease see <a href=\"***********\">the forums</a> for more info.\n\nSorry, but I can't continue without it.\n\n If you had the correct install this message wouldn't appear.";

    taskDialog.Callback =
        new TaskDialogCallback((ActiveTaskDialog _taskDialog, TaskDialogNotificationArgs _args, object _callbackData) =>
            
                if (_args.Notification == TaskDialogNotification.HyperlinkClicked)
                
                    Process.Start(_args.Hyperlink);
                
                return false;
            );

    var doItButton = new TaskDialogButton();
    doItButton.ButtonId = 101;
    doItButton.ButtonText = "Quit";

    taskDialog.Buttons = new TaskDialogButton[]  doItButton ;

    int result = taskDialog.Show(null);
    Application.Exit();

/*
* Handles the error message regarding ComCtl32.dll not being found.
* In the event of the beautiful TaskDialog above (which uses ComCtl32.dll)
* cannot be opened, fall back to an ugly as **** MessageBox with a '?' Help
* button in the title bar -.-
*/
catch (EntryPointNotFoundException)

    MessageBox.Show(
        "Your .NET Framework Version is out-of-date.\nTo find out how to get .NET 4.0 simply visit the forums at *********.\n\nSorry, but I can't continue without it :(",
        ".NET Update Notification", MessageBoxButtons.OK, MessageBoxIcon.Error);

感谢您的宝贵时间:)

乔什

【参考方案1】：

从 MSDN 尝试这个解决方案 -

第 1 步：在解决方案资源管理器中右键单击您的项目

第 2 步：选择 -> 添加 -> 新项目

第 3 步：在 VS 2010 中添加应用程序清单文件，即 app.manifest

第 4 步：取消注释从依赖标记开始到 /dependency 的最后一个 xml 部分

代码应该看起来像这样 -

<dependency>
<dependentAssembly>
 <assemblyIdentity
  type="win32"
  name="Microsoft.Windows.Common-Controls"
  version="6.0.0.0"
  processorArchitecture="*"
  publicKeyToken="6595b64144ccf1df"
  language="*"
 />

【讨论】：

这会中断对 Windows XP 及更早版本的支持吗？

嗯...我真的不确定。试一试