howto do [in,out] struct, without automation

Hi ,
    Could you please put your Java code here for this call ?

thanks,
best regards,
Vikram

Hi Vikram

Thanks for the response, this is the javacode attemting to do the call :

callReadRaw(long startSeverTime,long endpServerTime, Integer[] serverHandles) throws JIException {
    ...

    //[in, out] tagOPCHDA_TIME* htStartTime
    callObject.addInParamAsPointer(new JIPointer(start.getStruct()), JIFlags.FLAG_NULL);
    //[in, out] tagOPCHDA_TIME* htEndTime,
    callObject.addInParamAsPointer(new JIPointer(end.getStruct()), JIFlags.FLAG_NULL);
    //should it be added out as well?
    //callObject.addOutParamAsObject(new JIPointer(OPCHDATime.getEmptyStruct()), JIFlags.FLAG_NULL);
    //callObject.addOutParamAsObject(new JIPointer(OPCHDATime.getEmptyStruct()), JIFlags.FLAG_NULL);
       
    // [in] unsigned long dwNumValues
    callObject.addInParamAsInt(10, JIFlags.FLAG_NULL);
   
    // [in] long bBounds,
    callObject.addInParamAsInt(0, JIFlags.FLAG_NULL);
    // callObject.addInParamAsBoolean(false, JIFlags.FLAG_NULL);//short or bool instead?
       
    // [in] unsigned long dwNumItems,
    callObject.addInParamAsInt(serverHandles.length, JIFlags.FLAG_NULL);

    JIArray tagsInput = new JIArray(serverHandles, true);
    // [in] unsigned long* phServer
    callObject.addInParamAsArray(tagsInput, JIFlags.FLAG_NULL);
    JIArray okResult = new JIArray(OPCHDAItem.getEmptyStruct(), null, 1,true);

    // [out] tagOPCHDA_ITEM** ppItemValues
    callObject.addOutParamAsObject(new JIPointer(okResult),JIFlags.FLAG_NULL);

    // [out] HRESULT** ppErrors
    JIArray errout = new JIArray(Integer.class, null, 1, true);
    callObject.addOutParamAsObject(new JIPointer(errout), JIFlags.FLAG_NULL);

    ...

JIStruct getStruct() throws JIException{
    JIStruct retur= new JIStruct();
    retur.addMember(new Integer((useStringbasedTime?1:0)));
    //retur.addMember(new Boolean(useStringbasedTime));//short or bool instead?
   
    String time="";
    if(useStringbasedTime){
        time=szTime;
    }
    JIString szTimeToAdd=new JIString ( time , JIFlags.FLAG_REPRESENTATION_STRING_LPWSTR );
       
    //retur.addMember(new JIPointer(szTimeToAdd));
    retur.addMember(szTimeToAdd);
    if(useStringbasedTime){
        absHigh=0;
        absLow=0;
    }
    //retur.addMember(new JIPointer(getFileTimeStruct()));
    retur.addMember(getFileTimeStruct());
    return retur;
}

JIStruct getFileTimeStruct() throws JIException {
    JIStruct fileTime= new JIStruct();
    fileTime.addMember(new Integer(absLow));
    fileTime.addMember(new Integer(absHigh));
    return fileTime;
}

Left in some commented out code (things I changed back and to trying and failing;) ). Hope you see an obvious mistake in my code, thanks again for the help.

Best regard
Erlend

Hi again

Just letting you know that I found what I did wrong, basically I just had to set the isReferenceTypePtr flag to true on the pointers marked as [in, out] and add an empty struct as out object.

Keep up the good work, best regards
-erlend

Follow the source code in its current form. I've tried many different ways, but always get the error that I'm passing incorrect parameters. I'm using J-interop 2.05. Are the (in, out) parameters being passed the right way?

    /*
    HRESULT ReadProcessed (
    [in, out] OPCHDA_TIME *htStartTime,
    [in, out] OPCHDA_TIME *htEndTime,
    [in] FILETIME ftResampleInterval,
    [in] DWORD dwNumItems,
    [in, size_is(dwNumItems)] OPCHANDLE * phServer,
    [in, size_is(dwNumItems)] DWORD* haAggregate,
    [out, size_is(,dwNumItems)] OPCHDA_ITEM ** ppItemValues,
    [out, size_is(,dwNumItems)] HRESULT ** ppErrors
    );
*/
    public void readProcessed(OPCHDATIME p_StartDate, OPCHDATIME p_EndDate, FILETIME p_Sample, Integer[] p_ServerHandles, Integer[] p_Aggregates) throws JIException
    {
        JICallBuilder v_BuilderObj = new JICallBuilder(true);
        v_BuilderObj.reInit();
        v_BuilderObj.setOpnum(1);

        JIArray p_ServerArray = new JIArray(p_ServerHandles, true);
        JIArray p_AggregateArray = new JIArray(p_Aggregates, true);
        JIArray v_OKResult = new JIArray(OPCHDAITEM.GetStruct(), null, 1,true);
        JIArray v_Errors = new JIArray(Integer.class, null, 1, true);

        v_BuilderObj.addInParamAsPointer(new JIPointer(p_StartDate.getStruct(), true), JIFlags.FLAG_NULL);
        v_BuilderObj.addInParamAsPointer(new JIPointer(p_EndDate.getStruct(), true), JIFlags.FLAG_NULL);
        v_BuilderObj.addOutParamAsObject(new JIPointer(OPCHDATIME.GetStruct()), JIFlags.FLAG_NULL);
        v_BuilderObj.addOutParamAsObject(new JIPointer(OPCHDATIME.GetStruct()), JIFlags.FLAG_NULL);
        v_BuilderObj.addInParamAsStruct(p_Sample.getValue(), JIFlags.FLAG_NULL);
        v_BuilderObj.addInParamAsInt(p_ServerHandles.length, JIFlags.FLAG_NULL);
        v_BuilderObj.addInParamAsArray(p_ServerArray, JIFlags.FLAG_NULL);
        v_BuilderObj.addInParamAsArray(p_AggregateArray, JIFlags.FLAG_NULL);
        v_BuilderObj.addOutParamAsObject(new JIPointer(v_OKResult),JIFlags.FLAG_NULL);
        v_BuilderObj.addOutParamAsObject(new JIPointer(v_Errors), JIFlags.FLAG_NULL);

        Object v_Result[] = getCOMObject().call(v_BuilderObj);

//(...)

    }