我正在开发一个使用IWebBrowser2嵌入式控件的winapi c ++程序。
我正在运行Windows 7 + IExplore 11所以当我打开IE11并打电话给我的服务器时，我得到了这个用户代理字符串：
Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko
当从IWebBrowser2发出请求时，我得到了这个UA字符串：
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/7.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; Tablet PC 2.0; InfoPath.3; .NET4.0E)
我已设法将此元标记附加到IWebBrowser2中加载的每个html页面（编辑，试图避免执行浏览器功能控制 - 请注意 - ）：
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
第一个问题：通过这样做，我是否为最新安装的IExplore版本启用功能？
第二个问题：我在Changing the user agent of the WebBrowser control中看到了如何更改IWebBrowser2中的UA字符串。
有没有办法在安全的用户权限下获取最新的IE版本UA字符串？ （所以即使是我可以实现的大多数权限限制用户帐户）。
我试过ObtainUserAgentString()没有运气，总是得到"Mozilla/4.0 ... MSIE 7.0 ..."
答案 0 :(得分：8)
最后，感谢Noseratio评论（+1），我实施了浏览器功能控制，因为这不需要管理员权限。我还将注册表中的密钥打开为volatile，以便在可能的卸载后不会使注册表变脏。
由于Noseratio链接的响应引用了C＃，如果有人需要它，并且解释每个功能正在做什么，我会留下C ++翻译：
static bool SetBrowserFeatureControlKey(wstring feature, wchar_t *appName, DWORD value) {
HKEY key;
bool success = true;
wstring featuresPath(L"Software\\Microsoft\\Internet Explorer\\Main\\FeatureControl\\");
wstring path(featuresPath + feature);
LONG nError = RegCreateKeyEx(HKEY_CURRENT_USER, path.c_str(), 0, NULL, REG_OPTION_VOLATILE, KEY_WRITE, NULL, &key, NULL);
if (nError != ERROR_SUCCESS) {
success = false;
} else {
nError = RegSetValueExW(key, appName, 0, REG_DWORD, (const BYTE*) &value, sizeof(value));
if (nError != ERROR_SUCCESS) {
success = false;
}
nError = RegCloseKey(key);
if (nError != ERROR_SUCCESS) {
success = false;
}
}
return success;
}
static void SetBrowserFeatureControl() {
// http://msdn.microsoft.com/en-us/library/ee330720(v=vs.85).aspx
DWORD emulationMode = GetBrowserEmulationMode();
if (emulationMode > 0) {
// FeatureControl settings are per-process
wchar_t fileName[MAX_PATH + 1];
ZeroMemory(fileName, (MAX_PATH + 1) * sizeof(wchar_t));
GetModuleFileNameW(NULL, fileName, 256);
vector<string> splittedFileName = split(WString2string(fileName), '\\');
ZeroMemory(fileName, (MAX_PATH + 1) * sizeof(wchar_t));
wstring exeName = String2wstring(splittedFileName.at(splittedFileName.size() - 1));
memcpy(fileName, exeName.c_str(), sizeof(wchar_t) * exeName.length());
// make the control is not running inside Visual Studio Designer
//if (String.Compare(fileName, "devenv.exe", true) == 0 || String.Compare(fileName, "XDesProc.exe", true) == 0) {
// return;
//}
// Windows Internet Explorer 8 and later. The FEATURE_BROWSER_EMULATION feature defines the default emulation mode for Internet
// Explorer and supports the following values.
// Webpages containing standards-based !DOCTYPE directives are displayed in IE10 Standards mode.
SetBrowserFeatureControlKey(L"FEATURE_BROWSER_EMULATION", fileName, emulationMode);
// Internet Explorer 8 or later. The FEATURE_AJAX_CONNECTIONEVENTS feature enables events that occur when the value of the online
// property of the navigator object changes, such as when the user chooses to work offline. For more information, see the ononline
// and onoffline events.
// Default: DISABLED
SetBrowserFeatureControlKey(L"FEATURE_AJAX_CONNECTIONEVENTS", fileName, 1);
// Internet Explorer 9. Internet Explorer 9 optimized the performance of window-drawing routines that involve clipping regions associated
// with child windows. This helped improve the performance of certain window drawing operations. However, certain applications hosting the
// WebBrowser Control rely on the previous behavior and do not function correctly when these optimizations are enabled. The
// FEATURE_ENABLE_CLIPCHILDREN_OPTIMIZATION feature can disable these optimizations.
// Default: ENABLED
// SetBrowserFeatureControlKey(L"FEATURE_ENABLE_CLIPCHILDREN_OPTIMIZATION", fileName, 1);
// Internet Explorer 8 and later. By default, Internet Explorer reduces memory leaks caused by circular references between Internet Explorer
// and the Microsoft JScript engine, especially in scenarios where a webpage defines an expando and the page is refreshed. If a legacy
// application no longer functions with these changes, the FEATURE_MANAGE_SCRIPT_CIRCULAR_REFS feature can disable these improvements.
// Default: ENABLED
// SetBrowserFeatureControlKey(L"FEATURE_MANAGE_SCRIPT_CIRCULAR_REFS", fileName, 1);
// Windows Internet Explorer 8. When enabled, the FEATURE_DOMSTORAGE feature allows Internet Explorer and applications hosting the WebBrowser
// Control to use the Web Storage API. For more information, see Introduction to Web Storage.
// Default: ENABLED
// SetBrowserFeatureControlKey(L"FEATURE_DOMSTORAGE ", fileName, 1);
// Internet Explorer 9. The FEATURE_GPU_RENDERING feature enables Internet Explorer to use a graphics processing unit (GPU) to render content.
// This dramatically improves performance for webpages that are rich in graphics.
// Default: DISABLED
SetBrowserFeatureControlKey(L"FEATURE_GPU_RENDERING ", fileName, 1);
// Internet Explorer 9. By default, the WebBrowser Control uses Microsoft DirectX to render webpages, which might cause problems for
// applications that use the Draw method to create bitmaps from certain webpages. In Internet Explorer 9, this method returns a bitmap
// (in a Windows Graphics Device Interface (GDI) wrapper) instead of a GDI metafile representation of the webpage. When the
// FEATURE_IVIEWOBJECTDRAW_DMLT9_WITH_GDI feature is enabled, the following conditions cause the Draw method to use GDI instead of DirectX
// to create the resulting representation. The GDI representation will contain text records and vector data, but is not guaranteed to be
// similar to the same represenation returned in earlier versions of the browser:
// The device context passed to the Draw method points to an enhanced metafile.
// The webpage is not displayed in IE9 Standards mode.
// By default, this feature is ENABLED for applications hosting the WebBrowser Control. This feature is ignored by Internet Explorer and
// Windows Explorer. To enable this feature by using the registry, add the name of your executable file to the following setting.
SetBrowserFeatureControlKey(L"FEATURE_IVIEWOBJECTDRAW_DMLT9_WITH_GDI ", fileName, 0);
// Windows 8 introduces a new input model that is different from the Windows 7 input model. In order to provide the broadest compatibility
// for legacy applications, the WebBrowser Control for Windows 8 emulates the Windows 7 mouse, touch, and pen input model (also known as the
// legacy input model). When the legacy input model is in effect, the following conditions are true:
// Windows pointer messages are not processed by the Trident rendering engine (mshtml.dll).
// Document Object Model (DOM) pointer and gesture events do not fire.
// Mouse and touch messages are dispatched according to the Windows 7 input model.
// Touch selection follows the Windows 7 model ("drag to select") instead of the Windows 8 model ("tap to select").
// Hardware accelerated panning and zooming is disabled.
// The Zoom and Pan Cascading Style Sheets (CSS) properties are ignored.
// The FEATURE_NINPUT_LEGACYMODE feature control determines whether the legacy input model is enabled
// Default: ENABLED
SetBrowserFeatureControlKey(L"FEATURE_NINPUT_LEGACYMODE", fileName, 0);
// Internet Explorer 7 consolidated HTTP compression and data manipulation into a centralized component in order to improve performance and
// to provide greater consistency between transfer encodings (such as HTTP no-cache headers). For compatibility reasons, the original
// implementation was left in place. When the FEATURE_DISABLE_LEGACY_COMPRESSION feature is disabled, the original compression implementation
// is used.
// Default: ENABLED
// SetBrowserFeatureControlKey(L"FEATURE_DISABLE_LEGACY_COMPRESSION", fileName, 1);
// When the FEATURE_LOCALMACHINE_LOCKDOWN feature is enabled, Internet Explorer applies security restrictions on content loaded from the
// user's local machine, which helps prevent malicious behavior involving local files:
// Scripts, Microsoft ActiveX controls, and binary behaviors are not allowed to run.
// Object safety settings cannot be overridden.
// Cross-domain data actions require confirmation from the user.
// Default: DISABLED
// SetBrowserFeatureControlKey(L"FEATURE_LOCALMACHINE_LOCKDOWN", fileName, 0);
// Internet Explorer 7 and later. When enabled, the FEATURE_BLOCK_LMZ_??? feature allows ??? stored in the Local Machine zone to be
// loaded only by webpages loaded from the Local Machine zone or by webpages hosted by sites in the Trusted Sites list. For more information,
// see Security and Compatibility in Internet Explorer 7.
// Default: DISABLED
// FEATURE_BLOCK_LMZ_IMG can block images that try to load from the user's local file system. To opt in, add your process name and set
// the value to 0x00000001.
// FEATURE_BLOCK_LMZ_OBJECT can block objects that try to load from the user's local file system. To opt in, add your process name and
// set the value to 0x00000001.
// FEATURE_BLOCK_LMZ_SCRIPT can block script access from the user's local file system. To opt in, add your process name and set the value
// to 0x00000001.
// SetBrowserFeatureControlKey(L"FEATURE_BLOCK_LMZ_OBJECT", fileName, 0);
// SetBrowserFeatureControlKey(L"FEATURE_BLOCK_LMZ_OBJECT", fileName, 0);
// SetBrowserFeatureControlKey(L"FEATURE_BLOCK_LMZ_SCRIPT", fileName, 0);
// Internet Explorer 8 and later. When enabled, the FEATURE_DISABLE_NAVIGATION_SOUNDS feature disables the sounds played when you open a
// link in a webpage.
// Default: DISABLED
SetBrowserFeatureControlKey(L"FEATURE_DISABLE_NAVIGATION_SOUNDS", fileName, 1);
// Windows Internet Explorer 7 and later. Prior to Internet Explorer 7, href attributes of a objects supported the javascript prototcol;
// this allowed webpages to execute script when the user clicked a link. For security reasons, this support was disabled in Internet
// Explorer 7. For more information, see Event 1034 - Cross-Domain Barrier and Script URL Mitigation.
// When enabled, the FEATURE_SCRIPTURL_MITIGATION feature allows the href attribute of a objects to support the javascript prototcol.
// Default: DISABLED
SetBrowserFeatureControlKey(L"FEATURE_SCRIPTURL_MITIGATION", fileName, 1);
// For Windows 8 and later, the FEATURE_SPELLCHECKING feature controls this behavior for Internet Explorer and for applications hosting
// the web browser control (WebOC). When fully enabled, this feature automatically corrects grammar issues and identifies misspelled words
// for the conditions described earlier.
// (DWORD) 00000000 - Features are disabled.
// (DWORD) 00000001 - Features are enabled for the conditions described earlier. (This is the default value.)
// (DWORD) 00000002 - Features are enabled, but only for elements that specifically set the spellcheck attribute to true.
SetBrowserFeatureControlKey(L"FEATURE_SPELLCHECKING", fileName, 0);
// When enabled, the FEATURE_STATUS_BAR_THROTTLING feature limits the frequency of status bar updates to one update every 200 milliseconds.
// Default: DISABLED
SetBrowserFeatureControlKey(L"FEATURE_STATUS_BAR_THROTTLING", fileName, 1);
// Internet Explorer 7 or later. When enabled, the FEATURE_TABBED_BROWSING feature enables tabbed browsing navigation shortcuts and
// notifications. For more information, see Tabbed Browsing for Developers.
// Default: DISABLED
// SetBrowserFeatureControlKey(L"FEATURE_TABBED_BROWSING", fileName, 1);
// When enabled, the FEATURE_VALIDATE_NAVIGATE_URL feature control prevents Windows Internet Explorer from navigating to a badly formed URL.
// Default: DISABLED
SetBrowserFeatureControlKey(L"FEATURE_VALIDATE_NAVIGATE_URL", fileName, 1);
// When enabled,the FEATURE_WEBOC_DOCUMENT_ZOOM feature allows HTML dialog boxes to inherit the zoom state of the parent window.
// Default: DISABLED
SetBrowserFeatureControlKey(L"FEATURE_WEBOC_DOCUMENT_ZOOM", fileName, 1);
// The FEATURE_WEBOC_POPUPMANAGEMENT feature allows applications hosting the WebBrowser Control to receive the default Internet Explorer
// pop-up window management behavior.
// Default: ENABLED
SetBrowserFeatureControlKey(L"FEATURE_WEBOC_POPUPMANAGEMENT", fileName, 0);
// Applications hosting the WebBrowser Control should ensure that window resizing and movement events are handled appropriately for the
// needs of the application. By default, these events are ignored if the WebBrowser Control is not hosted in a proper container. When enabled,
// the FEATURE_WEBOC_MOVESIZECHILD feature allows these events to affect the parent window of the application hosting the WebBrowser Control.
// Because this can lead to unpredictable results, it is not considered desirable behavior.
// Default: DISABLED
// SetBrowserFeatureControlKey(L"FEATURE_WEBOC_MOVESIZECHILD", fileName, 0);
// The FEATURE_ADDON_MANAGEMENT feature enables applications hosting the WebBrowser Control
// to respect add-on management selections made using the Add-on Manager feature of Internet Explorer.
// Add-ons disabled by the user or by administrative group policy will also be disabled in applications that enable this feature.
SetBrowserFeatureControlKey(L"FEATURE_ADDON_MANAGEMENT", fileName, 0);
// Internet Explorer 10. When enabled, the FEATURE_WEBSOCKET feature allows script to create and use WebSocket objects.
// The WebSocketobject allows websites to request data across domains from your browser by using the WebSocket protocol.
// Default: ENABLED
SetBrowserFeatureControlKey(L"FEATURE_WEBSOCKET", fileName, 1);
// When enabled, the FEATURE_WINDOW_RESTRICTIONS feature adds several restrictions to the size and behavior of popup windows:
// Popup windows must appear in the visible display area.
// Popup windows are forced to have status and address bars.
// Popup windows must have minimum sizes.
// Popup windows cannot cover important areas of the parent window.
// When enabled, this feature can be configured differently for each security zone by using the URLACTION_FEATURE_WINDOW_RESTRICTIONS URL
// action flag.
// Default: ENABLED
SetBrowserFeatureControlKey(L"FEATURE_WINDOW_RESTRICTIONS", fileName, 0);
// Internet Explorer 7 and later. The FEATURE_XMLHTTP feature enables or disables the native XMLHttpRequest object.
// Default: ENABLED
// SetBrowserFeatureControlKey(L"FEATURE_XMLHTTP", fileName, 1);
}
}
static LONG GetDWORDRegKey(HKEY hKey, const std::wstring &strValueName, DWORD &nValue, DWORD nDefaultValue) {
nValue = nDefaultValue;
DWORD dwBufferSize(sizeof(DWORD));
DWORD nResult(0);
LONG nError = ::RegQueryValueExW(hKey, strValueName.c_str(), 0, NULL, reinterpret_cast<LPBYTE>(&nResult), &dwBufferSize);
if (ERROR_SUCCESS == nError) {
nValue = nResult;
}
return nError;
}
static LONG GetStringRegKey(HKEY hKey, const std::wstring &strValueName, std::wstring &strValue, const std::wstring &strDefaultValue) {
strValue = strDefaultValue;
WCHAR szBuffer[512];
DWORD dwBufferSize = sizeof(szBuffer);
ULONG nError;
nError = RegQueryValueExW(hKey, strValueName.c_str(), 0, NULL, (LPBYTE)szBuffer, &dwBufferSize);
if (ERROR_SUCCESS == nError) {
strValue = szBuffer;
}
return nError;
}
static DWORD GetBrowserEmulationMode() {
int browserVersion = 7;
wstring sBrowserVersion;
HKEY key;
bool success = true;
BYTE data[256];
wstring path(L"SOFTWARE\\Microsoft\\Internet Explorer");
LONG nError = RegOpenKeyExW(HKEY_LOCAL_MACHINE, path.c_str(), 0, KEY_QUERY_VALUE, &key);
DWORD mode = 10000; // Internet Explorer 10. Webpages containing standards-based !DOCTYPE directives are displayed in IE10 Standards mode. Default value for Internet Explorer 10.
if (nError != ERROR_SUCCESS) {
success = false;
} else {
nError = GetStringRegKey(key, L"svcVersion", sBrowserVersion, L"7");
if (nError != ERROR_SUCCESS) {
nError = GetStringRegKey(key, L"version", sBrowserVersion, L"7");
if (nError != ERROR_SUCCESS) {
success = false;
}
}
if (RegCloseKey(key) != ERROR_SUCCESS) {
success = false;
}
}
if (success) {
browserVersion = std::atoi(split(WString2string(sBrowserVersion), '.').at(0).c_str()); // convert base 16 number in s to int
switch (browserVersion) {
case 7:
mode = 7000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE7 Standards mode. Default value for applications hosting the WebBrowser Control.
break;
case 8:
mode = 8000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE8 mode. Default value for Internet Explorer 8
break;
case 9:
mode = 9000; // Internet Explorer 9. Webpages containing standards-based !DOCTYPE directives are displayed in IE9 mode. Default value for Internet Explorer 9.
break;
default:
// use IE10 mode by default
break;
}
} else {
mode = -1;
}
return mode;
}