[英]Unable load CLR from Visual C++ project with /clr option
我正在嘗試創建具有以下配置的Visual C ++ Win32控制台應用程序:操作系統:Windows 7 Visuals Studio:VS 2012公共語言運行時支持:公共語言運行時支持(/ clr [項目屬性]。
我也創建了一個Visual C#WPF應用程序,並使用該dll從下面提到的c ++程序中使用它。
我按照此鏈接中的所有說明進行操作: https : //code.msdn.microsoft.com/CppHostCLR-e6581ee0
問題是我無法啟動CLR,即ICLRRunTimeHost:Start方法返回0x1而不是0x0。請幫助/指導我解決我的錯誤,如果我的代碼概念上錯誤,請同樣指導我。
請在下面找到我的代碼:
#include "stdafx.h"
#include <metahost.h>
#include <mscoree.h>
//#include <Windows.h>
//#using <WpfWithoutService.dll>
//using namespace System;
//using namespace System::Threading;
//using namespace WpfWithoutService;
#pragma comment(lib, "mscoree.lib")
/*ref class MainWinClass
{
public:
void MainForm()
{
MainWindow^ mainwin = gcnew MainWindow();
//mainwin->Activate();
//mainwin->InitializeComponent();
}
};*/
int _tmain(int argc, _TCHAR* argv[])
{
HRESULT hr;
//BOOL fLoadable;
ICLRMetaHost *pMetaHost = NULL;
LPCWSTR pwzVersion = (LPCWSTR)"v4.0.30319";
//hr = CLRCreateInstance(CLSID_CLRMetaHost, IID_ICLRMetaHost, (LPVOID*)&pMetaHost);
hr = CLRCreateInstance(CLSID_CLRMetaHost, IID_PPV_ARGS(&pMetaHost));
if (FAILED(hr))
{
wprintf(L"CLRCreateInstance failed w/hr 0x%08lx\n", hr);
}
ICLRRuntimeInfo *pRuntimeInfo = NULL;
// Get the ICLRRuntimeInfo corresponding to a particular CLR version.
//hr = pMetaHost->GetRuntime(L"v4.0.30319", IID_ICLRRuntimeInfo, (LPVOID *)&pRuntimeInfo);
hr = pMetaHost->GetRuntime(L"v4.0.30319", IID_PPV_ARGS(&pRuntimeInfo));
if (FAILED(hr))
{
wprintf(L"ICLRMetaHost::GetRuntime failed w/hr 0x%08lx\n", hr);
//goto Cleanup;
}
/*Check if the specified runtime can be loaded into the process. This
// method will take into account other runtimes that may already be
// loaded into the process and set pbLoadable to TRUE if this runtime can
// be loaded in an in-process side-by-side fashion.
hr = pRuntimeInfo->IsLoadable(&fLoadable);
if (FAILED(hr))
{
wprintf(L"ICLRRuntimeInfo::IsLoadable failed w/hr 0x%08lx\n", hr);
//goto Cleanup;
}
if (!fLoadable)
{
wprintf(L".NET runtime %s cannot be loaded\n", "4.0.30319.18063");
//goto Cleanup;
}*/
// Load the CLR into the current process and return a runtime interface pointer.
ICLRRuntimeHost *pClrRuntimeHost = NULL;
hr = pRuntimeInfo->GetInterface(CLSID_CLRRuntimeHost, IID_PPV_ARGS(&pClrRuntimeHost));
if (FAILED(hr))
{
wprintf(L"ICLRRuntimeInfo::GetInterface failed w/hr 0x%08lx\n", hr);
}
// Start the CLR.
if (hr == S_OK)
{
hr = pClrRuntimeHost->Start();
if (FAILED(hr))
{
wprintf(L"CLR failed to start w/hr 0x%08lx\n", hr);
//goto Cleanup;
}
}
//Load an assembly and call the required function
if (hr == S_OK) // if CLR is started successfully
{
DWORD dwRet;
hr = pClrRuntimeHost->ExecuteInDefaultAppDomain(L"WpfWithoutService.dll", L"WpfWithoutService.MainWindow", L"InitializeComponent", NULL, &dwRet);
if (FAILED(hr))
{
wprintf(L"CLR failed to start w/hr 0x%08lx\n", hr);
}
}
if (pMetaHost)
{
pMetaHost->Release();
pMetaHost = NULL;
}
if (pRuntimeInfo)
{
pRuntimeInfo->Release();
pRuntimeInfo = NULL;
}
if (pClrRuntimeHost)
{
// Please note that after a call to Stop, the CLR cannot be
// reinitialized into the same process. This step is usually not
// necessary. You can leave the .NET runtime loaded in your process.
//wprintf(L"Stop the .NET runtime\n");
pClrRuntimeHost->Stop()
pClrRuntimeHost->Release();
pClrRuntimeHost = NULL;
}
return 0;
}
ICLRRunTimeHost:Start方法返回0x1而不是0x0
即S_FALSE,在CLR已經運行時返回。 您不能啟動兩次。
具有以下配置...公共語言運行時支持
這是不合適的,它迫使CLR 在此代碼開始運行之前被加載和初始化。 您只能在未使用/ clr構建的本地C ++程序中編寫此類CLR托管代碼。
換句話說,您根本不需要編寫此代碼。 並沒有明顯的理由為什么要摘錄。 從Assembly :: Load()開始,您可以通過使用Reflection實現完全相同的功能。 或更簡單的是,通過添加對該程序集的引用。 實際意圖很難逆向工程。 如果實際上有一個,則只需將/ clr選項設置回“ No”。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.