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2025-04-01 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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This article mainly introduces how to use externalinterface, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.
External access interface provided by flashActionScript for Flash virtual machines to communicate with ActiveX container (ActiveXcontainer) applications or container applications (Containerapplication). The interface defines two methods, addCallback () and call (), and a property available.
Externalinterface usage:
Because the communication process between the Flash and the JavaScript container is described in detail in the Flash help, I will not repeat it here. Take the VS (VC) application with Flash controls as an example:
Container accesses the Flash control:
A:flash Code:
/ / Import
Importflash.external.ExternalInterface
/ / callback declaration
If (flash.external.ExternalInterface.available) {
ExternalInterface.addCallback ("flashDoSth", null,flashDoSth)
}
/ / callback definition
FunctionflashDoSth (param:TYPE): TYPE {
/ / dosthhere
/ / returnsth
}
B:VS (VC) code:
In the function code snippet that requires FLASH to execute the above definition, write
M_flash.CallFunction (strXML)
/ / description:
M_flash is the Flash control variable
StrXML is the data that the container sends to Flash, and it is a string of XML type. In JS web pages, the data is transferred directly, but in the control container such as VS (VC), the container and control data transfer way is: data (VS/VC)-XML data-data (Flash).
The general organization of externalinterface is:
The container passes the data to Flash as the string "STR", and the strXML should be written as:
"STR"
The data passed by the container to Flash is the number 222. StrXML should be written as:
"222"
The data passed by the container to Flash is Boolean, and strXML should be written as (one of the following ways):
"
"
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