Trait webview2_sys::ICoreWebView2WebMessageReceivedEventArgs

pub trait ICoreWebView2WebMessageReceivedEventArgs: IUnknown {
    unsafe fn get_source(&self, source: *mut LPWSTR) -> HRESULT;
    unsafe fn get_web_message_as_json(
        &self, 
        web_message_as_json: *mut LPWSTR
    ) -> HRESULT;
    unsafe fn try_get_web_message_as_string(
        &self, 
        web_message_as_string: *mut LPWSTR
    ) -> HRESULT;
}

Event args for the WebMessageReceived event.

Required methods

unsafe fn get_source(&self, source: *mut LPWSTR) -> HRESULT

The URI of the document that sent this web message.

unsafe fn get_web_message_as_json(
    &self,
    web_message_as_json: *mut LPWSTR
) -> HRESULT

The message posted from the WebView content to the host converted to a JSON string. Use this to communicate via JavaScript objects.

For example the following postMessage calls result in the following WebMessageAsJson values:

   postMessage({'a': 'b'})      L"{\"a\": \"b\"}"
   postMessage(1.2)             L"1.2"
   postMessage('example')       L"\"example\""

unsafe fn try_get_web_message_as_string(
    &self,
    web_message_as_string: *mut LPWSTR
) -> HRESULT

If the message posted from the WebView content to the host is a string type, this method will return the value of that string. If the message posted is some other kind of JavaScript type this method will fail with E_INVALIDARG. Use this to communicate via simple strings.

For example the following postMessage calls result in the following WebMessageAsString values:

   postMessage({'a': 'b'})      E_INVALIDARG
   postMessage(1.2)             E_INVALIDARG
   postMessage('example')       L"example"

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Trait Implementations

impl ComInterface for dyn ICoreWebView2WebMessageReceivedEventArgs

type VTable = ICoreWebView2WebMessageReceivedEventArgsVTable

A COM compatible V-Table

type Super = dyn IUnknown

The interface that this interface inherits from

const IID: IID

The associated id for this interface

fn is_iid_in_inheritance_chain(riid: &GUID) -> bool

Check whether a given IID is in the inheritance hierarchy of this interface

impl<C: ICoreWebView2WebMessageReceivedEventArgs> ProductionComInterface<C> for dyn ICoreWebView2WebMessageReceivedEventArgs

fn vtable<O: Offset>() -> Self::VTable

Get the vtable for a particular COM interface

Implementations on Foreign Types

impl<T: ICoreWebView2WebMessageReceivedEventArgs + ComInterface + ?Sized> ICoreWebView2WebMessageReceivedEventArgs for ComRc<T>

unsafe fn get_source(&self, source: *mut LPWSTR) -> HRESULT

unsafe fn get_web_message_as_json(
    &self,
    web_message_as_json: *mut LPWSTR
) -> HRESULT

unsafe fn try_get_web_message_as_string(
    &self,
    web_message_as_string: *mut LPWSTR
) -> HRESULT

impl<T: ICoreWebView2WebMessageReceivedEventArgs + ComInterface + ?Sized> ICoreWebView2WebMessageReceivedEventArgs for ComPtr<T>

unsafe fn get_source(&self, source: *mut LPWSTR) -> HRESULT

unsafe fn get_web_message_as_json(
    &self,
    web_message_as_json: *mut LPWSTR
) -> HRESULT

unsafe fn try_get_web_message_as_string(
    &self,
    web_message_as_string: *mut LPWSTR
) -> HRESULT

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Implementors

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