Using ActiveX controls and dumpcpp

[eli]

hello:
I get a activex controls (.OCX file) from manufacturer, this active controls can access a PCI card. I want to build a GUI to control this card. I use dumpcpp to create a "dospotpc.h" and "dospotpc.cpp" file:

dumpcpp {74676A0F-BB65-48A0-8044-F453692E9A8A} -o dospotpc

in file "dospotpc.h"

/****************************************************************************
**
** Namespace DOSPOTPCLib generated by dumpcpp from type library
** C:\Program Files\DoSpotPC.OCX\DoSpotPC.ocx
**
****************************************************************************/
 
#ifndef QAX_DUMPCPP_DOSPOTPCLIB_H
#define QAX_DUMPCPP_DOSPOTPCLIB_H
 
// Define this symbol to __declspec(dllexport) or __declspec(dllimport)
#ifndef DOSPOTPCLIB_EXPORT
#define DOSPOTPCLIB_EXPORT
#endif
 
#include <qaxobject.h>
#include <qaxwidget.h>
#include <qdatetime.h>
#include <qpixmap.h>
 
struct IDispatch;
 
 
// Referenced namespace
 
namespace DOSPOTPCLib {
 
 
class DOSPOTPCLIB_EXPORT _DDoSpotPC : public QAxObject
{
public:
    _DDoSpotPC(IDispatch *subobject = 0, QAxObject *parent = 0)
    : QAxObject((IUnknown*)subobject, parent)
    {
        internalRelease();
    }
 
    /*
    Method AboutBox
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void AboutBox();
 
    /*
    Method doGetDetectorsName
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDetectorsName(int numDev, QString& DetSN1, QString& DetSN2);
 
    /*
    Method doGetDeviceNumber
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDeviceNumber(int Hardware, int& numDev);
 
    /*
    Method doGetMeasureData
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureData(int numDev, QVariant& Xo, QVariant& Yo, QVariant& Po);
 
    /*
    Method doGetMeasureDataEx
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureDataEx(int numDev, double& Xo, double& Yo, double& Po);
 
    /*
    Method doGetQuadPower
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetQuadPower(int numDev, QVariant& PQ1, QVariant& PQ2);
 
    /*
    Method doSetHardware
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetHardware(int Hardware, int numDev);
 
    /*
    Method doSetSystemType
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void doSetSystemType(int AppName);
 
    /*
    Method doSetWavelength
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetWavelength(int numDev, int Channel, int Wave);
 
// meta object functions
    static const QMetaObject staticMetaObject;
    virtual const QMetaObject *metaObject() const { return &staticMetaObject; }
    virtual void *qt_metacast(const char *);
};
 
// skipping event interface _DDoSpotPCEvents
 
// Actual coclasses
class DOSPOTPCLIB_EXPORT DoSpotPC : public QAxWidget
{
public:
    DoSpotPC(QWidget *parent = 0, Qt::WindowFlags f = 0)
    : QAxWidget(parent, f)
    {
        setControl("{74676a0f-bb65-48a0-8044-f453692e9a8a}");
    }
 
    /*
    Method AboutBox
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void AboutBox();
 
    /*
    Method doGetDetectorsName
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDetectorsName(int numDev, QString& DetSN1, QString& DetSN2);
 
    /*
    Method doGetDeviceNumber
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDeviceNumber(int Hardware, int& numDev);
 
    /*
    Method doGetMeasureData
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureData(int numDev, QVariant& Xo, QVariant& Yo, QVariant& Po);
 
    /*
    Method doGetMeasureDataEx
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureDataEx(int numDev, double& Xo, double& Yo, double& Po);
 
    /*
    Method doGetQuadPower
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetQuadPower(int numDev, QVariant& PQ1, QVariant& PQ2);
 
    /*
    Method doSetHardware
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetHardware(int Hardware, int numDev);
 
    /*
    Method doSetSystemType
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void doSetSystemType(int AppName);
 
    /*
    Method doSetWavelength
 
    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetWavelength(int numDev, int Channel, int Wave);
 
// meta object functions
    static const QMetaObject staticMetaObject;
    virtual const QMetaObject *metaObject() const { return &staticMetaObject; }
    virtual void *qt_metacast(const char *);
};
...................................

/****************************************************************************
**
** Namespace DOSPOTPCLib generated by dumpcpp from type library
** C:\Program Files\DoSpotPC.OCX\DoSpotPC.ocx
**
****************************************************************************/

#ifndef QAX_DUMPCPP_DOSPOTPCLIB_H
#define QAX_DUMPCPP_DOSPOTPCLIB_H

// Define this symbol to __declspec(dllexport) or __declspec(dllimport)
#ifndef DOSPOTPCLIB_EXPORT
#define DOSPOTPCLIB_EXPORT
#endif

#include <qaxobject.h>
#include <qaxwidget.h>
#include <qdatetime.h>
#include <qpixmap.h>

struct IDispatch;


// Referenced namespace

namespace DOSPOTPCLib {


class DOSPOTPCLIB_EXPORT _DDoSpotPC : public QAxObject
{
public:
    _DDoSpotPC(IDispatch *subobject = 0, QAxObject *parent = 0)
    : QAxObject((IUnknown*)subobject, parent)
    {
        internalRelease();
    }

    /*
    Method AboutBox

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void AboutBox();

    /*
    Method doGetDetectorsName

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDetectorsName(int numDev, QString& DetSN1, QString& DetSN2);

    /*
    Method doGetDeviceNumber

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDeviceNumber(int Hardware, int& numDev);

    /*
    Method doGetMeasureData

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureData(int numDev, QVariant& Xo, QVariant& Yo, QVariant& Po);

    /*
    Method doGetMeasureDataEx

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureDataEx(int numDev, double& Xo, double& Yo, double& Po);

    /*
    Method doGetQuadPower

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetQuadPower(int numDev, QVariant& PQ1, QVariant& PQ2);

    /*
    Method doSetHardware

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetHardware(int Hardware, int numDev);

    /*
    Method doSetSystemType

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void doSetSystemType(int AppName);

    /*
    Method doSetWavelength

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetWavelength(int numDev, int Channel, int Wave);

// meta object functions
    static const QMetaObject staticMetaObject;
    virtual const QMetaObject *metaObject() const { return &staticMetaObject; }
    virtual void *qt_metacast(const char *);
};

// skipping event interface _DDoSpotPCEvents

// Actual coclasses
class DOSPOTPCLIB_EXPORT DoSpotPC : public QAxWidget
{
public:
    DoSpotPC(QWidget *parent = 0, Qt::WindowFlags f = 0)
    : QAxWidget(parent, f)
    {
        setControl("{74676a0f-bb65-48a0-8044-f453692e9a8a}");
    }

    /*
    Method AboutBox

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void AboutBox();

    /*
    Method doGetDetectorsName

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDetectorsName(int numDev, QString& DetSN1, QString& DetSN2);

    /*
    Method doGetDeviceNumber

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetDeviceNumber(int Hardware, int& numDev);

    /*
    Method doGetMeasureData

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureData(int numDev, QVariant& Xo, QVariant& Yo, QVariant& Po);

    /*
    Method doGetMeasureDataEx

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetMeasureDataEx(int numDev, double& Xo, double& Yo, double& Po);

    /*
    Method doGetQuadPower

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doGetQuadPower(int numDev, QVariant& PQ1, QVariant& PQ2);

    /*
    Method doSetHardware

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetHardware(int Hardware, int numDev);

    /*
    Method doSetSystemType

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline void doSetSystemType(int AppName);

    /*
    Method doSetWavelength

    For more information, see help context 0 in C:\Program Files\DoSpotPC.OCX\DoSpotPC.hlp.
    */
    inline int doSetWavelength(int numDev, int Channel, int Wave);

// meta object functions
    static const QMetaObject staticMetaObject;
    virtual const QMetaObject *metaObject() const { return &staticMetaObject; }
    virtual void *qt_metacast(const char *);
};
...................................

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in class "DoSpotPC", this member function prototype:

inline int doGetDeviceNumber(int Hardware, int& numDev);

inline int doGetDeviceNumber(int Hardware, int& numDev);

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is not correct, according to the manual, this member function prototype should be

short doGetDeviceNumber(short Hardware, short* numDev);

short doGetDeviceNumber(short Hardware, short* numDev);

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I get stuck at here, the parameter 1 type should be a pointer. if I use this function like this:

int devNum;
s->doGetDeviceNumber(1, devNum);

int devNum;
s->doGetDeviceNumber(1, devNum);

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I will get following error:
"Error calling IDispatch member: Type mismatch in parameter 1"

please give me some help, thx.

[high_flyer]

How is this related to Qt?
If I understand correctly, your problems have to do with OCX interface, not with the QAxObject...

[eli]

hello:
I try to use "dynamicCall" function, too, like following code:

QAxWidget *doSpot;
    doSpot = new QAxWidget(this);
    doSpot->setControl("{74676A0F-BB65-48A0-8044-F453692E9A8A}");
 
    QString str1 = "doSetSystemType(int)";
    QList<QVariant> vars1;
    QVariant res1;
    vars1 << 0;
    res1 = doSpot->dynamicCall(str1.toLatin1(), vars1);
    qDebug() << res1 << vars1[0];
 
    QString str2 = "doGetDeviceNumber(int, int&)";
    QList<QVariant> vars2;
    QVariant res2;
    vars2 << 1 << "";
    res2 = doSpot->dynamicCall(str2.toLatin1(), vars2);
    qDebug() << res2 << vars2[0] << vars2[1];
 
    QString str3 = "doSetHardware(int, int)";
    QList<QVariant> vars3;
    QVariant res3;
    vars3 << 1 << 2;
    res3 = doSpot->dynamicCall(str3.toLatin1(), vars3);
    qDebug() << res3 << vars3[0] << vars3[1];
 
    QString str4 = "doSetWavelength(int, int, int)";
    QList<QVariant> vars4;
    QVariant res4;
    vars4 << 1 << 1 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];
    vars4.clear();
    vars4 << 1 << 2 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];
    vars4.clear();
    vars4 << 2 << 1 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];
    vars4.clear();
    vars4 << 2 << 2 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];

QAxWidget *doSpot;
    doSpot = new QAxWidget(this);
    doSpot->setControl("{74676A0F-BB65-48A0-8044-F453692E9A8A}");

    QString str1 = "doSetSystemType(int)";
    QList<QVariant> vars1;
    QVariant res1;
    vars1 << 0;
    res1 = doSpot->dynamicCall(str1.toLatin1(), vars1);
    qDebug() << res1 << vars1[0];

    QString str2 = "doGetDeviceNumber(int, int&)";
    QList<QVariant> vars2;
    QVariant res2;
    vars2 << 1 << "";
    res2 = doSpot->dynamicCall(str2.toLatin1(), vars2);
    qDebug() << res2 << vars2[0] << vars2[1];

    QString str3 = "doSetHardware(int, int)";
    QList<QVariant> vars3;
    QVariant res3;
    vars3 << 1 << 2;
    res3 = doSpot->dynamicCall(str3.toLatin1(), vars3);
    qDebug() << res3 << vars3[0] << vars3[1];

    QString str4 = "doSetWavelength(int, int, int)";
    QList<QVariant> vars4;
    QVariant res4;
    vars4 << 1 << 1 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];
    vars4.clear();
    vars4 << 1 << 2 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];
    vars4.clear();
    vars4 << 2 << 1 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];
    vars4.clear();
    vars4 << 2 << 2 << 633;
    res4 = doSpot->dynamicCall(str4.toLatin1(), vars4);
    qDebug() << res4 << vars4[0] << vars4[1] << vars4[2];

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it is fine. then, I want to get some values through function "doGetMeasureDataEx", I have a problem. following code and mention is this function prototype describe in manual:

short doGetMeasureDataEx(float* measuredData);

short doGetMeasureDataEx(float* measuredData);

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my problem is on argument "measuredData", the argument is a array of two element returned, ie, I can get 2 measured data at array "measuredData". . then I use dynamicCall as following code:

QString str5 = "doGetMeasureDataEx(double&)";
    QVariant vars5 = 0.0;
    QVariant res5;
    res5 = doSpot->dynamicCall(str5.toLatin1(), vars5);

QString str5 = "doGetMeasureDataEx(double&)";
    QVariant vars5 = 0.0;
    QVariant res5;
    res5 = doSpot->dynamicCall(str5.toLatin1(), vars5);

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I only can get 1 data, how to get this two data, please give me some help, thx.

[high_flyer]

My guess is that you have to use this variant for dynamicCall():
http://doc.qt.nokia.com/latest/qaxba...#dynamicCall-2

[eli]

to high_flyer:
thank for your answer.

I just simplify this function prototype to explain my question, this actual prototype is

short doGetMeasureDataEx(short iDev, float* x, float* y, float* p);

short doGetMeasureDataEx(short iDev, float* x, float* y, float* p);

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the argument iDev is in-parameter. these arguments (x, y, p) are out-parameter and two element array, so, I should get 6 measured data totally.

and in my qt' test program, the getting data code is :

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";
    QList<QVariant> vars5;
    QVariant res5;
    vars5 << 1 << 0.0 << 0.0 << 0.0 ;
    res5 = doSpot->dynamicCall(str5.toLatin1(), vars5);

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";
    QList<QVariant> vars5;
    QVariant res5;
    vars5 << 1 << 0.0 << 0.0 << 0.0 ;
    res5 = doSpot->dynamicCall(str5.toLatin1(), vars5);

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so, vars[1], vars[2] and vars[3] is first element data of x ,y and p, respectively. I can't get second data. please help me to solve this problem, thx.

[high_flyer]

Did you read my last answer?

[eli]

to high_flyer:
did you mean that I have to use this function "QVariant QAxBase::dynamicCall ( const char * function, QList<QVariant> & vars )"?, in my last post, I have used this function for dynamicCall() as follwing:

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";
    QList<QVariant> vars5;
    QVariant res5;
    vars5 << 1 << 0.0 << 0.0 << 0.0 ;
    res5 = doSpot->dynamicCall(str5.toLatin1(), vars5);

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";
    QList<QVariant> vars5;
    QVariant res5;
    vars5 << 1 << 0.0 << 0.0 << 0.0 ;
    res5 = doSpot->dynamicCall(str5.toLatin1(), vars5);

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I don't understand your meaning completely, please give me more explanation. thank for your answer.

[high_flyer]

Sorry, for some reason my brain saw 'res5' instead of 'vars5'.

So do you mean 'vars5' has only one element in the list after the call?

[eli]

to high_flyer:
following code is the function prototype described in manual:

"short doGetMeasureDataEx(short iDev, float* x, float* y, float* p);"

the argument 0 ("iDev") is in-parameter. Arguments 1, 2 and 3("x", "y", "p") are out-parameter, two element array and pointer, so, I should get 6 values totally. these 6 values are stored in x[0], x[1], y[0], y[1], p[0], p[1].

and in my qt' test program, after calling "dynamicCall()" in my machine, the vars5 is: vars5[0] = 1, vars5[1] = -12.143, vars5[2] = -0.973, vars5[3] = 0.812. ie, vars5[0] = iDev, vars5[1] = x[0], vars5[2] = y[0], vars5[3] = p[0]. I can't get x[1], y[1], p[1] values.

the Qvariant can be used as a pointer? thank for your answer.

[high_flyer]

Ah... now I see that you didn't use the correct function signature - you have pointers as params but you were using references...
You used:

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";

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Where as the function signature is:

short doGetMeasureDataEx(short iDev, float* x, float* y, float* p);

short doGetMeasureDataEx(short iDev, float* x, float* y, float* p);

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So no wonder it doesn't work.

What you can try, is cast the double pointer addresses to long, set that as your QVariable, and then cast back after the call:

double var1 = 0.0;
double var2 = 0.0;
...
QVariant pDouble1 = (long)&var1;
QVariant pDouble2 = (long)&var2;
..
QList<QVariant> varList;
varList << pDouble1 << pDouble 2.... ;
res5 = doSpot->dynamicCall(str5.toLatin1(), varList ); //use the correct signature with pointers!!
double *pVar = varList.at(0);
var1 = *pVar;

double var1 = 0.0;
double var2 = 0.0;
...
QVariant pDouble1 = (long)&var1;
QVariant pDouble2 = (long)&var2;
..
QList<QVariant> varList;
varList << pDouble1 << pDouble 2.... ;
res5 = doSpot->dynamicCall(str5.toLatin1(), varList ); //use the correct signature with pointers!!
double *pVar = varList.at(0);
var1 = *pVar;

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I don't know if this will work, this is just something I would try.

[eli]

hello:
I use dumpcpp to create a "dospotpc.h" and "dospotpc.cpp" file before: "dumpcpp {74676A0F-BB65-48A0-8044-F453692E9A8A} -o dospotpc"
In file "dospotpc.h", this function prototype is:

inline int doGetMeasureDataEx(int numDev, double& Xo, double& Yo, double& Po);

inline int doGetMeasureDataEx(int numDev, double& Xo, double& Yo, double& Po);

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so, I use this code to call "dynamicCall()" function:

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";

QString str5 = "doGetMeasureDataEx(int, double&, double&, double&)";

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I don't know why the function argument transform from pointer type to reference type.

[eli]

it doesn't seem to work successfully. I try this and get some errors while compile.