无法在WPF C＃应用程序中加载DLL [英] Unable to load DLL in WPF C# application

问题描述

无法加载DLLVCECLB，我在C＃WPF应用程序中运行时遇到以下错误消息（VS2010） dll'：找不到指定的模块（来自HRESULT的异常：0x8007007E）

发生此错误的代码是参见hDevEnum）：

 命名空间Imperx.FLExGrabber 
 {
 public class枚举器：IEnumerator 
 {
 private IntPtr hDevEnum; 
 
 VCECLB_EnumData枚举数据; 
 ///默认构造函数
 
 public Enumerator（）
 {
 enumData.cbSize =（UInt32）Marshal.SizeOf（enumData）; 
 
 //打开枚举器句柄
 hDevEnum = NativeFunctions.VCECLB_EnumInit（）; < --- ---这里错误讯息！ 
} 
 
 ///析构函数
〜枚举器（）
 {
 NativeFunctions.VCECLB_EnumClose（hDevEnum）; 
} 
 
} 
} 
  

从现有的项目，它使用Windows窗体应用程序，它运行完美。现在我需要将此解决方案转移到WPF应用程序中。因此，我使用与同一台VS2010相同的机器（Win7 / 64ibt）。平台目标是X64。

问题：我需要将VCECLB.dll文件添加到我的项目中？我不能在引用下添加它，因此我把它放入文件夹... \bin\x64\Release - 但没有成功。

当我检查VCECLB.dll与依赖性walker我得到以下：

问号是否意味着这些DLL丢失？如果是这样，为什么我可以使用相同的VCECLB.dll运行Windows窗体项目？

有没有人知道我如何解决这个问题？
提前感谢

解决方案

这种错误有两个常见原因：

1. 您所指的DLL不在DLL搜索路径上，或者


2. 找到您要引用的DLL ，但是它的依赖关系是无法找到的。

通过将DLL放在与可执行文件相同的目录中解决问题1。通过确保安装所有依赖关系来解决问题2。通常这涉及部署DLL所依赖的MSVC运行时。

I get following error message (VS2010) when running in debug mode my C# WPF appliction:

"Unable to load DLL 'VCECLB.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)"

The code where this error occurs is (see hDevEnum):

namespace Imperx.FLExGrabber
{
public class Enumerator:IEnumerator
 {
    private IntPtr hDevEnum;

    VCECLB_EnumData enumData;
    /// Default constructor

    public Enumerator()
    {
        enumData.cbSize = (UInt32)Marshal.SizeOf(enumData);

        // Open enumerator handle
        hDevEnum = NativeFunctions.VCECLB_EnumInit();  <<--- Error message here!!!
    }

    /// Destructor
    ~Enumerator()
    {
        NativeFunctions.VCECLB_EnumClose(hDevEnum);
    }

 }
}

From the existing project, which uses a windows form application, it runs perfectly. Now I need to transfer this solution into a WPF-application. Therefore I am using the same machine (Win7/64ibt) with the same VS2010. The platform target is X64.

Question: Where I need to add the VCECLB.dll file into my project? I can not add it under references and therefore I put it into the folder "...\bin\x64\Release" - but no success.

When I check the VCECLB.dll with dependency walker I get following:

Does the question marks means that those dll's are missing? If so, why I can run the windows form project with the same VCECLB.dll?

Does anybody know how I can solve this issue? Thanks in advance

解决方案

There are two common causes for such an error:

1. The DLL that you are referring to is not on the DLL search path, or
2. The DLL that you are referring to is found, but its dependencies cannot be found.

Resolve problem 1 by putting the DLL in the same directory as the executable. Resolve problem 2 by making sure that all dependencies are installed. Typically this involves deploying the MSVC runtime that the DLL depends upon.

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