interface ICoreWebView2ExperimentalController2

Note

This reference is no longer being maintained. For the latest API reference, see WebView2 API Reference.

Note

This an experimental API that is shipped with our prerelease SDK. See WebView2 release notes.

interface ICoreWebView2ExperimentalController2
  : public IUnknown

This is the ICoreWebView2ExperimentalController2 interface.

Summary

Members	Descriptions
get_AllowExternalDrop	Gets the AllowExternalDrop property which is used to configure the capability that dragging objects from outside the bounds of webview2 and dropping into webview2 is allowed or disallowed.
put_AllowExternalDrop	Sets the AllowExternalDrop property which is used to configure the capability that dragging objects from outside the bounds of webview2 and dropping into webview2 is allowed or disallowed.

The ICoreWebView2ExperimentalController2 provides interface to enable/disable external drop.

Applies to

Product	Introduced
WebView2 Win32	N/A
WebView2 Win32 Prerelease	1.0.1010

Members

get_AllowExternalDrop

Gets the AllowExternalDrop property which is used to configure the capability that dragging objects from outside the bounds of webview2 and dropping into webview2 is allowed or disallowed.

public HRESULT get_AllowExternalDrop(BOOL * value)

The default value is TRUE.

            wil::com_ptr<ICoreWebView2Controller> controller =
                m_appWindow->GetWebViewController();
            wil::com_ptr<ICoreWebView2ExperimentalController2> controllerExperimental =
                controller.try_query<ICoreWebView2ExperimentalController2>();
            if (controllerExperimental)
            {
                BOOL allowExternalDrop;
                CHECK_FAILURE(
                    controllerExperimental->get_AllowExternalDrop(&allowExternalDrop));
                if (allowExternalDrop)
                {
                    CHECK_FAILURE(controllerExperimental->put_AllowExternalDrop(FALSE));
                    MessageBox(
                        nullptr, L"WebView disallows dropping files now.",
                        L"WebView AllowDrop property changed", MB_OK);
                }
                else
                {
                    CHECK_FAILURE(controllerExperimental->put_AllowExternalDrop(TRUE));
                    MessageBox(
                        nullptr, L"WebView allows dropping files now.",
                        L"WebView AllowDrop property changed", MB_OK);
                }
            }

put_AllowExternalDrop

Sets the AllowExternalDrop property which is used to configure the capability that dragging objects from outside the bounds of webview2 and dropping into webview2 is allowed or disallowed.

public HRESULT put_AllowExternalDrop(BOOL value)

            wil::com_ptr<ICoreWebView2Controller> controller =
                m_appWindow->GetWebViewController();
            wil::com_ptr<ICoreWebView2ExperimentalController2> controllerExperimental =
                controller.try_query<ICoreWebView2ExperimentalController2>();
            if (controllerExperimental)
            {
                BOOL allowExternalDrop;
                CHECK_FAILURE(
                    controllerExperimental->get_AllowExternalDrop(&allowExternalDrop));
                if (allowExternalDrop)
                {
                    CHECK_FAILURE(controllerExperimental->put_AllowExternalDrop(FALSE));
                    MessageBox(
                        nullptr, L"WebView disallows dropping files now.",
                        L"WebView AllowDrop property changed", MB_OK);
                }
                else
                {
                    CHECK_FAILURE(controllerExperimental->put_AllowExternalDrop(TRUE));
                    MessageBox(
                        nullptr, L"WebView allows dropping files now.",
                        L"WebView AllowDrop property changed", MB_OK);
                }
            }