IEGetWriteableFolderPath未在Window 7中实现？ [英] IEGetWriteableFolderPath not implemented in Window 7?

问题描述

我有 一个IE插件，我想写一个简单的日志文件到磁盘。在XP中我写到AppData，但在Vista中使用IE7保护模式我不能，所以我使用ieframe.dll方法获取缓存目录的路径 - 如下所示：

 static HRESULT GetIECacheDir（CString& csPath）
 {
 typedef HRESULT（WINAPI * PFNIEGETWRITEABLEFOLDERPATH）（REFGUID clsidFolderID，LPWSTR * lppwstrPath）; 
 
 PFNIEGETWRITEABLEFOLDERPATH pfnIEGetWritableFolderPath = NULL; 
 HRESULT hr = S_OK; 
 HINSTANCE hInstance = NULL; 
 LPWSTR wszPath = NULL; 
 csPath.Empty（）; 
 
 hInstance = LoadLibrary（_T（&ieframe.dll"））; 
 if（NULL == hInstance）返回E_FAIL; 
 
 pfnIEGetWritableFolderPath =（PFNIEGETWRITEABLEFOLDERPATH）GetProcAddress 
（
 hInstance，
" IEGetWriteableFolderPath" 
）; 
 if（NULL == pfnIEGetWritableFolderPath）
 {
 FreeLibrary（hInstance）; 
返回E_FAIL; 
} 
 
 hr = pfnIEGetWritableFolderPath（FOLDERID_InternetCache，& wszPath）; 
 if（SUCCEEDED（hr）&& NULL！= wszPath）
 {
 CComBSTR bstrPath（wszPath）; 
 csPath = bstrPath.Detach（）; 
 CoTaskMemFree（wszPath）; 
} 
 
 FreeLibrary（hInstance）; 
返回S_OK; 
} 

当我在带有IE8的Windows 7机箱中测试此代码时，我得到了这个方法的E_NOTIMPL。

我做错了什么？

解决方案

我在Windows 7上得到完全相同的结果IE8  - >    E_NOTIMPL

您的代码没有问题

其他人是否可以在Windows 7上调用IEGetWritableFolderPath？



THX

I hav e an IE plugin, and I want to write a simple log file to disk. In XP i write to AppData, but in Vista with IE7 Protected Mode I can't, so I'm using ieframe.dll methods to get the path to the cache directory - like so:

	static HRESULT GetIECacheDir( CString & csPath )
	{
		typedef HRESULT ( WINAPI *PFNIEGETWRITEABLEFOLDERPATH )( REFGUID clsidFolderID, LPWSTR *lppwstrPath );
		
		PFNIEGETWRITEABLEFOLDERPATH pfnIEGetWritableFolderPath = NULL;
		HRESULT hr = S_OK;
		HINSTANCE hInstance = NULL;
		LPWSTR wszPath = NULL;
		csPath.Empty();

		hInstance = LoadLibrary( _T("ieframe.dll") );
		if ( NULL == hInstance ) return E_FAIL;

		pfnIEGetWritableFolderPath = (PFNIEGETWRITEABLEFOLDERPATH) GetProcAddress
			(
			hInstance,
			"IEGetWriteableFolderPath"
			);
		if ( NULL == pfnIEGetWritableFolderPath )
		{
			FreeLibrary( hInstance );
			return E_FAIL;
		}

		hr = pfnIEGetWritableFolderPath( FOLDERID_InternetCache, &wszPath );
		if ( SUCCEEDED( hr ) && NULL != wszPath )
		{
			CComBSTR bstrPath( wszPath );
			csPath = bstrPath.Detach();
			CoTaskMemFree( wszPath );
		}

		FreeLibrary( hInstance );
		return S_OK;
	}

When I tested this code in a Windows 7 box with IE8, I got a E_NOTIMPL for this method.

Am I doing something wrong?

解决方案

I get the exact same result on windows 7 IE8  -->    E_NOTIMPL

there is nothing wrong with your code

are other people able to call IEGetWritableFolderPath on windows 7 ?



thx

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