快速提问:我正在使用Windows 7中的一些新任务栏API,并且已经在我的应用程序跳转列表中显示了最近的项目,但是我希望以不同于文件名的标题显示它们(大多数文件)我的应用程序将打开将具有非常相似的名称)。但是,我没有看到使用IShellItem接口的任何方法。我是否必须使用自定义类别和IShellLink来完成此任务?
作为参考,我目前的代码如下:
void AddRecentApp(const wchar_t* path, const wchar_t* title /* Can I even use this? */ ) {
HRESULT hres;
hres = CoInitialize(NULL);
IShellItem* recentItem;
hres = SHCreateItemFromParsingName(path, NULL, IID_PPV_ARGS(&recentItem));
if(SUCCEEDED(hres)) {
SHARDAPPIDINFO recentItemInfo;
recentItemInfo.pszAppID = MY_APP_USER_MODEL_ID;
recentItemInfo.psi = recentItem;
SHAddToRecentDocs(SHARD_APPIDINFO, &recentItemInfo);
recentItem->Release();
}
}
答案 0 :(得分:2)
想出来。 IShellItem只是文件的一种表示,因此它们只提供该文件的信息(没有自定义标题等).IShellLink本质上是一种快捷方式,在显示和启动时采取的操作方面更加灵活,因此更多适合这种情况。这是我的新代码:
void AddRecentApp(const wchar_t* path, const wchar_t* title) {
HRESULT hres;
hres = CoInitialize(NULL);
// Shell links give us more control over how the item is displayed and run
IShellLink* shell_link;
hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&shell_link));
if(SUCCEEDED(hres)) {
// Set up the basic link properties
shell_link->SetPath(path);
shell_link->SetArguments(L"--some-command-line-here"); // command line to execute when item is opened here!
shell_link->SetDescription(title); // This is what shows in the tooltip
shell_link->SetIconLocation(L"/path/to/desired/icon", 0); // can be an icon file or binary
// Open up the links property store and change the title
IPropertyStore* prop_store;
hres = shell_link->QueryInterface(IID_PPV_ARGS(&prop_store));
if(SUCCEEDED(hres)) {
PROPVARIANT pv;
InitPropVariantFromString(title, &pv);
// Set the title property.
prop_store->SetValue(PKEY_Title, pv); // THIS is where the displayed title is actually set
PropVariantClear(&pv);
// Save the changes we made to the property store
prop_store->Commit();
prop_store->Release();
}
// The link must persist in the file system somewhere, save it here.
IPersistFile* persist_file;
hres = shell_link->QueryInterface(IID_PPV_ARGS(&persist_file));
if(SUCCEEDED(hres)) {
hres = persist_file->Save(L"/link/save/directory", TRUE);
persist_file->Release();
}
// Add the link to the recent documents list
SHARDAPPIDINFOLINK app_id_info_link;
app_id_info_link.pszAppID = MY_APP_USER_MODEL_ID;
app_id_info_link.psl = shell_link;
SHAddToRecentDocs(SHARD_APPIDINFOLINK, &app_id_info_link);
shell_link->Release();
}
}