harmony 鸿蒙ArkWeb_WebMessageAPI
ArkWeb_WebMessageAPI
Overview
Defines a native API struct of the post message data. Before calling the API, you are advised to use ARKWEB_MEMBER_MISSING to check whether the function struct has the corresponding pointer to avoid crash caused by mismatch between the SDK and the device ROM.
Since: 12
Related module: Web
Summary
Member Variables
| Name | Description |
|---|---|
| size_t size | Size of the struct. |
| ArkWeb_WebMessagePtr(* createWebMessage )() | Pointer to the message to create. |
| void(* destroyWebMessage )(ArkWeb_WebMessagePtr *webMessage) | Pointer to the message to destroy. |
| void(* setType )(ArkWeb_WebMessagePtr webMessage, ArkWeb_WebMessageType type) | Pointer to the message type to set. |
| ArkWeb_WebMessageType(* getType )(ArkWeb_WebMessagePtr webMessage) | Pointer to the message type to obtain. |
| void(* setData )(ArkWeb_WebMessagePtr webMessage, void *data, size_t dataLength) | Pointer to the data to set. |
| void *(* getData )(ArkWeb_WebMessagePtr webMessage, size_t *dataLength) | Pointer to the data to obtain. |
Member Variable Description
createWebMessage
ArkWeb_WebMessagePtr(* ArkWeb_WebMessageAPI::createWebMessage) ()
Description
Pointer to the message to create.
Returns
Returns the message struct.
destroyWebMessage
void(* ArkWeb_WebMessageAPI::destroyWebMessage) (ArkWeb_WebMessagePtr *webMessage)
Description
Pointer to the message to destroy.
Parameters
| Name | Description |
|---|---|
| webMessage | Message to destroy. |
getData
void*(* ArkWeb_WebMessageAPI::getData) (ArkWeb_WebMessagePtr webMessage, size_t *dataLength)
Description
Pointer to the data to obtain.
Parameters
| Name | Description |
|---|---|
| webMessage | Pointer to the message struct. |
| dataLength | Data length, which is an output parameter. |
Returns
Returns the pointer to the data.
getType
ArkWeb_WebMessageType(* ArkWeb_WebMessageAPI::getType) (ArkWeb_WebMessagePtr webMessage)
Description
Pointer to the message type to obtain.
Parameters
| Name | Description |
|---|---|
| webMessage | Pointer to the message struct. |
Returns
Returns the message type.
setData
void(* ArkWeb_WebMessageAPI::setData) (ArkWeb_WebMessagePtr webMessage, void *data, size_t dataLength)
Description
Pointer to the data to set.
Parameters
| Name | Description |
|---|---|
| webMessage | Pointer to the message struct. |
| data | Pointer to the data. |
| dataLength | Data length. |
setType
void(* ArkWeb_WebMessageAPI::setType) (ArkWeb_WebMessagePtr webMessage, ArkWeb_WebMessageType type)
Description
Pointer to the message type to set.
Parameters
| Name | Description |
|---|---|
| webMessage | Pointer to the message struct. |
| type | Message type. |
size
size_t ArkWeb_WebMessageAPI::size
Description
Size of the struct.
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