Call and interact with QT and flex SWF

 

1. Add config to the project file XXXX. Pro

   + = Qaxcontainer

2. Use the following code in the window to embed and play the flash
   <Br/> // Chinese encoding Settings <br/> qtextcodec: setcodecfortr (qtextcodec: codecforname ("GBK ")); <br/> // <br/> qstring applicationpath = qcoreapplication: applicationdirpath (); <br/> SWF = new qaxwidget (0, 0 ); <br/> // The Show method should be placed here. Otherwise, a problem occurs when the SWF is initialized and the size is incorrect. <br/> SWF-> show (); <br/> // <br/> SWF-> setcontrol (qstring: fromutf8 ("{d27cdb6e-ae6d-11cf-96b8-444553540000 }")); <br/> SWF-> dynamiccall ("loadmovie (INT, qstring)", 0, applicationpath + "/resources/main.swf "); <br/> SWF-> dynamiccall ("play ");

    

• Let the QT program call the method in SWF:

• Define a button in the main window of QT. The click event of the button is as follows:

• Void mainwindow: on_pushbutton_clicked () <br/>{< br/> // qmessagebox: Warning (null, "warning", "On click", qmessagebox :: yes | qmessagebox: No, qmessagebox: Yes); <br/> qstring funname = "callwithexe"; <br/> qstring Arg = qobject: TR ("Oh! I am the content sent from QT to flex "); <br/> qstring callmethod = "<invoke name =/" "+ funname +"/"returntype =/" XML/"> <arguments> <string>" + Arg +" </string> </arguments> </invoke> "; <br/> SWF-> dynamiccall ("callfunction (string)", callmethod); <br/>}
• The Interface Program defined in the flex as file is as follows:
  Private function Init (): void {<br/> // This is an external interface, so that C # Can call <br/> externalinterface. addcallback ("callwithexe", callwithexe); <br/>}

   

• Define the Program Implementation Method in the flex as file
  Public Function callwithexe (STR: string): void {<br/> alert. Show (STR, "the content is displayed"); <br/>}
• The above code snippet completes this scenario: There is a button in the main window of QT. After you click the button, an alert window is displayed in flex with the following content: Oh, I am the content that QT passes to flex.

• Let SWF call methods in QT:
  • Define a button in flex. Access the methods in QT and obtain a returned value.
    Protected function button#clickhandler (Event: mouseevent): void <br/>{< br/> // todo auto-generated method stub <br/> If (externalinterface. available) {<br/> // alert. show ("externalinterface available. You can call the shell method ") <br/> // call the external program sayhello method, and input the method parameter" Hunk "to output the result returned by the method <br/> var strreturn: string = externalinterface. call ("sayhello", "Hunk", "Roamer"); <br/> alert. show (strreturn); <br/>}else {<br/> alert. show ("externalinterface is unavailable. ") <Br/>}< br/>}

     

  • Define a slot in QT and connect to the signal generated by the method from Flex. When as3 is running, externalinterface. Call in flex generates a signal in the form of flashcall (

    Qstring

    Qstring is the parameter "Hunk" and "Roamer" in the flex method ".

  • Define a slot, which is defined in the header file.
    Public slots: void sayhello (qstring message );

     

  • Connect a slot in the QT code
    // Link a slot so that the slot is used after being called in SWF <br/> connect (SwF, signal (flashcall (qstring), this, slot (sayhello (const qstring &)));

  • Implementation Methods in slot
    Void mainwindow: sayhello (qstring message) <br/>{< br/> qmessagebox: Warning (null, qobject :: TR ("content passed by SWF"), message, qmessagebox: Yes | qmessagebox: No, qmessagebox: Yes); <br/> qstring rtnstring = qobject:: TR ("<string> oh yes! I am the content returned by QT </string> "); <br/> SWF-> dynamiccall (" setreturnvalue (string) ", rtnstring); <br/>}

    Note: The passed content in Flex is an XML containing the method name and parameter list. Similarly, if you want QT to return values to the flex code. The returned value must also be an XML string (

    "<String> oh, too! I am the content returned by QT </string>"

    ;

    ). Otherwise