如何正确使用IOpenServiceManager::InstallService

Question

我正在尝试定义一个新的 IE 搜索引擎，但每当我尝试安装该服务时遇到麻烦。

我完成了以下 example 并且只更改了文件的名称

upload.xml:

 <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
   <ShortName>Web Search</ShortName>
   <Description>Use Example.com to search the Web.</Description>
   <Tags>example web</Tags>
   <Contact>admin@example.com</Contact>
   <Url type="application/rss+xml" 
        template="http://example.com/?q={searchTerms}&amp;pw={startPage?}&amp;format=rss"/>
 </OpenSearchDescription>

home.html

<html>
    <header>
        <link rel="search"
               type="application/opensearchdescription+xml" 
               href="http://somesite.com/upload.xml"
               title="Content search" />
    </header>
</html>

链接有效且有效。

c++:

ATL::CComPtr<IOpenServiceManager> spManager;
if (FAILED(hr = spManager.CoCreateInstance(CLSID_OpenServiceManager)))
    return false;

//URL-OF-SERVICE: See http://www.opensearch.org/Specifications/OpenSearch/1.1#OpenSearch_description_elements 
ATL::CComPtr<IOpenService> spService;
if (FAILED(hr = spManager->InstallService(L"http://somesite.com/home.html", &spService)))
    return 0;

if (FAILED(hr = spService->SetDefault(TRUE, nullptr)))
    return 0;

return 1;

每次我尝试安装我得到的服务时 (hr = 0xc00ce556 / E_INVALIDARG)

Answer 1

ActiveX/COM 使用来自 SysAllocString() family of functions (wrapped by the CComBSTR class) 的 BSTR 字符串。尝试通过 L"...":

使用它而不是编译时 WCHAR[] 文字

BSTR url = SysAllocString(L"http://somesite.com/home.html");
spManager->InstallService(url, &spService)
SysFreeString(url);

CComBSTR url(L"http://somesite.com/home.html");
spManager->InstallService((BSTR)url, &spService)

如何正确使用IOpenServiceManager::InstallService

How to properly use IOpenServiceManager::InstallService

c++

winapi

internet-explorer

opensearch