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我正在尝试在 C# 中为 Windows Mobile 创建一个 DLL,当我尝试在 VC++ 中访问 DLL 时出现错误。

是否可以在 C# 中创建一个 DLL 并使用 Windows Mobile 在 VC++ 中访问它?

我正在使用 Windows Mobile 6 SDK。
以下代码在桌面上运行良好。

C#代码:

using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Runtime.InteropServices; 
namespace HttpLibrary 
{ 
    [ComVisible(true)] 
    [StructLayout(LayoutKind.Sequential)] 
    public struct StorageGroup 
    { 
        public int count; 
        public string[] Name; 
        public string[] sgdName; 
        public string[] logfolder; 
        public string[] systemfolder; 
    } 
    [ComVisible(true)] 
    public struct MyResult 
    { 
        public string Name; 
    } 
    [ComVisible(true)] 
    [Guid("F55EDB71-E3FC-4FC2-A25B-6E09C49B3E93")] 
    public interface IMyClass1 
    { 
        int helloWorld(); 
        StorageGroup getStorageGroup(); 
    } 
    [ClassInterface(ClassInterfaceType.None)] 
    [Guid("7B0D798D-DD45-41E1-A0D4-2FC453B36CED")] 
    [ComVisible(true)] 
    public class Class1 : IMyClass1 
    { 
        public Class1() 
        { 
            //constructor.. create object.. 
        } 
        public int helloWorld() 
        { 
            //don't do anything just return 10 so that client can get the return value.. 
            return 10; 
        } 
        public MyResult helloWorld(int i) 
        { 
            MyResult result = new MyResult(); 
            result.Name = "jigar"; 
            return result; 
        } 
        public StorageGroup getStorageGroup() 
        { 
            //Put code here.. 
            StorageGroup sg = new StorageGroup(); 
            int count = 3; 
            sg.Name = new string[count]; 
            sg.sgdName = new string[count]; 
            sg.logfolder = new string[count]; 
            sg.systemfolder = new string[count]; 
            sg.count = count; 
            for (int i = 0; i < count; i++) 
            { 
                sg.Name[i] = (i * 100).ToString(); 
                sg.sgdName[i] = i.ToString(); 
                sg.logfolder[i] = i.ToString(); 
                sg.systemfolder[i] = i.ToString(); 
            } 
            return sg; 
        } 
    } 
} 

C++ 代码:

#import "c:\\pocket\\HTTP_POST_CS\\HttpLibrary\\HttpLibrary\\bin\\Debug 
\\HttpLibrary.tlb" 
BOOL CHttpLibraryTestDlg::OnInitDialog() 
{ 
        CDialog::OnInitDialog(); 
        // Set the icon for this dialog.  The framework does this 
automatically 
        //  when the application's main window is not a dialog 
        SetIcon(m_hIcon, TRUE);                 // Set big icon 
        SetIcon(m_hIcon, FALSE);                // Set small icon 
        CoInitializeEx(NULL, 0); 
        HttpLibrary::IMyClass1Ptr pIMyClass1(__uuidof(HttpLibrary::Class1)); 
//--->This line gives me a Raise Exception 
        int i=-1; 
        i = (int)pIMyClass1->helloWorld(); 
        return TRUE;  // return TRUE  unless you set the focus to a control 
}
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1 回答 1

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您不能在 Compact Framework 中执行此操作,因为它缺少CLR 托管功能。本机应用程序无法在其自己的进程中启动执行引擎,因此它无法加载托管代码。这意味着您自己的本机应用程序无法加载托管 DLL,设备浏览器也无法加载。

于 2010-08-25T12:30:56.987 回答