ATL / WTL / STL

Lim Bio Liong12-Dec-05 21:50

Lim Bio Liong

12-Dec-05 21:50

Hello hardworkboy,

I'm echoing Steve. Yes, the error indicates that CoInitialize() has not been called in the thread that invoked "pAdd.CoCreateInstance(CLSID_Add);".

You can easily determine the meanings of HRESULT error codes using the "Error Lookup" tool (this is included in the "Tools" menu of Visual Studio).

By the way, it is important to call CoInitialize() as it determines the apartment in which the calling thread will live in throughout its lifetime. Every thread in an application needs to reside in an apartment.

Apartments are used to control cross-thread access to COM objects.

Best Regards,
Bio.

Jörgen Sigvardsson13-Dec-05 11:34

Jörgen Sigvardsson

13-Dec-05 11:34

I would also like to point out that you should look at HRESULT values in hexadecimal format. That way they will be much easier to remember, trust me on that one! (But then again, I think that when you start to recognize the HRESULT values by heart, you're probably way too deep into it Blush | :O

)

--
Pictures[^] from my Japan trip.

hardworkboy13-Dec-05 14:52

hardworkboy

13-Dec-05 14:52

Thank you, all! Blush | :O

I have add the CoInitialize(NULL) function but this time I got the LNK2019 error which complains __Imp_Coinitialize unreolved symbol. I have tried to add the "Ole32.lib" and the "Objbase.h", still got the same link error.

I am sorry I still need your help.

How to support session in an ATL web service client app?

Stephen Hewitt8-Jan-06 17:12

Stephen Hewitt

8-Jan-06 17:12

At a guess:
First assert (in your code) happened because the object isn't registered properly. Second because object creation failed but you're using "pAdd" anyway.

Steve

CherezZaboro7-Dec-05 7:24

CherezZaboro

7-Dec-05 7:24

Ok. So I have a web service that supports session state between client calls. Now I'm writing an ATL client that must also support those session. Right now the code that was generated for me via "add web reference" doesn't preserve sessions between calls. I know that a client in C#.NET for the same web service works fine if you give it CookieContainer. How to tell ATL C++ cleint to support sessions?
Please help! Urgent! Very urgent!
Thanks a lot in advance!
Confused | :confused:

About ATL ActiveX Object

elza4-Dec-05 20:25

elza

4-Dec-05 20:25

hi all,

I have a ATL ActiveX Control object. In a html page using Object Tag I am able to receive events fired from this ActiveX object.

Now I am trying to instantiate the ActiveX control in a javascript file using the function ActiveXObject(ComponetName.ClassName) but cannot receive any events to the javascript.

pls advise.
Thank you,
Elza

string manipulation

alex@zoosmart.us3-Dec-05 21:14

alex@zoosmart.us

3-Dec-05 21:14

help, Given
CString=
"key1: value1\r\n
key2: value2\r\n
key3: value3\r\n"

what would be the best way to be able to randomly access it like a map, eg in one call I want to know the value assigned to key3, and another call I want to know the value assigned to key1.

Thanks!

Re: string manipulation

toxcct5-Dec-05 3:31

toxcct

5-Dec-05 3:31

if you expect a map behavior, why not using one ?

std::map<CString, CString> mapKeyValue;
 
<font color=green>//filling the map...</font>
mapKeyValue[<font color=gray>"key1"</font>] = <font color=gray>"value1\r\n"</font>;
mapKeyValue[<font color=gray>"key2"</font>] = <font color=gray>"value2\r\n"</font>;
mapKeyValue[<font color=gray>"key3"</font>] = <font color=gray>"value3\r\n"</font>;
 
<font color=green>//Accessing the value</font>
<font color=blue>int</font> iChoice = Rand123(); <font color=green>//gives either 1, 2 or 3</font>
CString strRandomValue;
strRandomValue.Format(<font color=gray>"key%d"</font>, iChoice);
strRandomValue = mapKeyValue[strRandomValue];

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20]

-- modified at 9:31 Monday 5th December, 2005

list class from STL

SanjaySMK1-Dec-05 20:44

SanjaySMK

1-Dec-05 20:44

Hello everybody,
Could anybody let me know how to use unique member function of list template class in STL? My problem is, I have a C++ class, Complex, which has two data members, real and imaginary numbers. I am using Complex class in creating a list. How can I use unique member function of list class when I have created a list using Complex class?

Grateful to you,
Thanks,

Smile | :)

Software Developer
Sanjay Khapre

Re: list class from STL

Jonas Larsson1-Dec-05 22:37

Jonas Larsson

1-Dec-05 22:37

list::unique works on sorted ranges, so that might explain why you think it doesnt work.

#include <iostream>
#include <list>
//#include <complex>
using namespace std;

struct Complex
{
Complex(int a, int b): i(a), r(b) {}
int i;
int r;
bool operator < (const Complex&c)
{
if (r != c.r)
return r < c.r;
else
return i < c.i;
}

bool operator == (const Complex&c)
{
return r == c.r && i == c.i;
}

friend ostream& operator << (const ostream&out, const Complex& c);
};

ostream& operator << (ostream&out, const Complex& c)
{
out << "(" << c.r << "," << c.i << ")";
return out;
}

int main()
{
list<Complex > l;
for (unsigned int i = 0;i<10;++i)
l.push_back(Complex(1+i%2,2+(i+1)%3));

copy(l.begin(), l.end(), ostream_iterator<Complex >(cout, "\t"));
cout << endl;

l.unique(); // unsorted list, chances are that no elements are equal to its preceding neighbor
copy(l.begin(), l.end(), ostream_iterator<Complex >(cout, "\t"));
cout << endl;

l.sort();
copy(l.begin(), l.end(), ostream_iterator<Complex >(cout, "\t"));
cout << endl;

l.unique();
copy(l.begin(), l.end(), ostream_iterator<Complex >(cout, "\t"));
cout << endl;
return 0;
}

---

"Man will never be free until the last king is strangled with the entrails of the last priest". -- Denis Diderot

Re: list class from STL

Gast12814-Dec-05 6:05

Gast128

14-Dec-05 6:05

#include <complex>
#include "boost/assign.hpp"

namespace
{
template <typename T>
struct complex_less : public std::binary_function<std::complex<T>, std::complex<T>, bool>
{
bool operator()(const std::complex<T>& rLhs, const std::complex<T>& rRhs) const
{
//complex numbers don't have '<', force one here
if (rLhs.real() != rRhs.real())
{
return (rLhs.real() < rRhs.real());
}

return (rLhs.imag() < rRhs.imag());
}
};
}

void TestMain()
{
std::list< std::complex<int> > lst;

lst = boost::assign::list_of(std::complex<int>(1, 1))
(std::complex<int>(2, 2))
(std::complex<int>(2, 2))
(std::complex<int>(0, 0));

lst.sort(complex_less<int>());
lst.unique();

#ifdef _DEBUG
std::copy(lst.begin(), lst.end(), std::ostream_iterator< std::complex<int> >(std::cout, " "));
std::cout << std::endl;
#endif
}

ATL Containment

Eytukan29-Nov-05 21:54

Mr. Alok phoo phoos error

29-Nov-05 21:54

I'm trying for an ATL Component with Containment. but i get the following error.
[error]

error MIDL2025 : syntax error : expecting a type specification near "IIACall"

[/error]

and this comes from the IDL code ,

[IDL]

[propget, id(7), helpstring("property ActiveCall")] HRESULT ActiveCall([out, retval] IIACall* *pVal);

[/IDL]
IDL code displayed is 'Outer' interface.
IIACall* is the pointer to inner interface.

Thanks,
Vivek
oops, i type so bad today
-- modified at 4:50 Wednesday 30th November, 2005

Eytukan30-Nov-05 22:47

30-Nov-05 22:47

just it needed a forward declaration

[code]
interface IIACall;
[/code]

thanks a lot alok.

"But your mind is very complex, very tricky. It makes simple things complicated. -- that's its work. And for centuries it has been trained for only one thing: to make things so complicated that your life becomes impossible."- Osho

<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">
--[V]--

Jörgen Sigvardsson1-Dec-05 9:33

Jörgen Sigvardsson

1-Dec-05 9:33

Is Mr Alok invisible, or did he email you the answer? Unsure | :~

--
Pictures[^] from my Japan trip.

Eytukan1-Dec-05 20:39

1-Dec-05 20:39

i think you were invisbile here, or else i'd get a reply from you. i asked alok in mail and he replied me through same. BTW i had a look at your "pictures from my japan trip" that's nice.. but why you didn't display your new japanese girl friend's photo? Frown | :(

<marquee scrollamount="1" scrolldelay="1" direction="up" height="10" step="1">
--[V]--

Jörgen Sigvardsson1-Dec-05 21:14

Jörgen Sigvardsson

1-Dec-05 21:14

I see! I've been mostly invisible here because of my recent workload. When I get home at nights I'm either working or just haven't got the will/power. Sigh | :sigh:

> but why you didn't display your new japanese girl friend's photo?

Big Grin | :-D

My new harem likes their privacy. Wink | ;)

--
Pictures[^] from my Japan trip.

ThatsAlok4-Dec-05 21:28

ThatsAlok

4-Dec-05 21:28

Jörgen Sigvardsson wrote:
My new harem likes their privacy

Harem... Where it Is...... Smile | :)

.. I will slip right under your nose to reach there Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

ATL/COM Class not registered Problem

ThatsAlok4-Dec-05 21:29

ThatsAlok

4-Dec-05 21:29

VivekuniQ wrote:
i asked alok in mail and he replied me through same.

But If i remember i replied you on Yahoo Messenger... Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Balkrishna Talele28-Nov-05 18:15

Balkrishna Talele

28-Nov-05 18:15

Q) When I create any damn ATL Project, using ATL wizard in WINXP/SP2 - I choose simple SIMPLE OBJECT (from object category) after adding methods to interface and compiling and registering using tool->register control OR using REGSVR32.exe "xx.dll", It tells me ok registered successfully. Butwhen i CoCreateInstance(...) it ives me this error. hr = -2147221164 i.e "Class not registered" When i drag it in VB i get error cannot load dll. When i view using ACTIVEX Control Test container, it dosent shows me my class!!! BUThowever if i do use FULL CONTROL using ATL wizard It registers successfully and even i can load it in VB So what mus be the problem with SIMPLE OBJECT
What must be the problem, any genuine solution!!!!

Passing Arrays from ATL

Eytukan24-Nov-05 0:00