A Question about FindWindowEx - C / C++ / MFC Discussion Boards

Re: auto_ptr array

Stephen Hewitt2-Apr-08 16:33

Stephen Hewitt

2-Apr-08 16:33

Use Boost's scoped_array[^].

Steve

Re: auto_ptr array

George_George3-Apr-08 0:01

George_George

3-Apr-08 0:01

Good resource, Steve!

Unfortunately, in current project, I have to use MSVC, and it does not support shared_ptr. Smile | :)

regards,
George

Re: auto_ptr array

ankita patel1-Apr-08 11:33

ankita patel

1-Apr-08 11:33

As you have already discovered auto_ptr is not designed to work as an array of pointers. There are multiple solutions to your problem and they are described in the below links.

http://www.codeproject.com/KB/cpp/COAP.aspx[^]

http://www.gotw.ca/gotw/042.htm[^]

If you are just interested finding out how auto_ptr can be used with an array then above links are suffice.
but in real use, you might want to take a look at the boost smart pointer library. you can also use the shared_ptr as it is designed to work with STL containers.

Ankita

Re: auto_ptr array

George_George1-Apr-08 19:42

George_George

1-Apr-08 19:42

Hi Ankita,

I have not made myself understood. My question is (say in another way), how to define an array of auto_ptr and initialization at the same time of definition? Any ideas?

regards,
George

Internationalization -

kutti1-Apr-08 0:31

kutti

1-Apr-08 0:31

Hi

I have created a ocx control in vc++.
The control is used in ASP.net.

Now the project is modified for Internationalization.

So I have to change the tooltips and other text.
for that what modification i need to do?

Re: Internationalization -

_AnsHUMAN_ 1-Apr-08 0:53

_AnsHUMAN_

1-Apr-08 0:53

Follow This Link[^]

Somethings seem HARD to do, until we know how to do them.
Wink | ;-)

_AnShUmAn_

Re: Internationalization -

kutti1-Apr-08 1:07

kutti

1-Apr-08 1:07

I think, I can expose property for each string.
then whatever the value in that property will get displayed.

can someone suggest whether my assumption is correct or not?

A Question about FindWindowEx

Mushtaque Nizamani1-Apr-08 0:17

Mushtaque Nizamani

1-Apr-08 0:17

Hi,
Here is the code.

HWND hwndCalc;<br />
	hwndCalc = ::FindWindowEx(NULL, NULL, _T("SciCalc"),_T("")); <br />
	DWORD dwerr = GetLastError(); // dwErr = 0(successful) but unable to understand why hwndCalc is NULL i.e. 0x00000000

I'm unable to understand why FindWindowEx is returning null handle although GetLastError() is returning 0 i.e. successful
Please check the document of FindWindowEx
http://msdn2.microsoft.com/en-us/library/ms633500(VS.85).aspx[^]

Regards,
Mushq

Re: A Question about FindWindowEx

Iain Clarke, Warrior Programmer1-Apr-08 0:33

Iain Clarke, Warrior Programmer

1-Apr-08 0:33

Because FindWindowEx is successfully finding no window matching your criteria?

You're looking for any window that is a child of the desktop, with a window class name of SciCalc.

It's worth verifying using spy++ that that is actually true. Or is the window text for that window scicalc, and the class is some other name?

(and just to be clear, this is class as in RegisterClass, not as in class CMyWindow...)

Iain.

Iain Clarke appears because ^CPallini still cares.

Re: A Question about FindWindowEx

Mushtaque Nizamani1-Apr-08 0:46

Mushtaque Nizamani

1-Apr-08 0:46

Thanks for the quick reply.

Iain Clarke wrote:
Because FindWindowEx is successfully finding no window matching your criteria?

I don't think so, if this happens then GetLastError() function returns 2(The system cannot find the file specified.)

Iain Clarke wrote:
You're looking for any window that is a child of the desktop, with a window class name of SciCalc.

Yes exactly and that window is "Calculator window".

Iain Clarke wrote:
It's worth verifying using spy++ that that is actually true.

I have verified that "Calculator window" is a child of desktop window in spy++.

Regards,
Mushq

Re: A Question about FindWindowEx

Iain Clarke, Warrior Programmer1-Apr-08 1:23

Iain Clarke, Warrior Programmer

1-Apr-08 1:23

I just ran calculator, and use the following code snippet:

HWND hWndFind = FindWindowEx (NULL, NULL, _T("SciCalc"), NULL);

if (hWndFind)
{
    TCHAR buf [1001];
    ::GetWindowText (hWndFind, buf, 1000);


}

and it worked a treat. The text said "Calculator" as expected. So I'm not sure what's wrong for you.

Do you have multiple monitors? I'd doubt this should be a problem, but I'm stabbing in the dark now. Terminal services? Other user logged on? Etc.

I did my test under XP.

Iain.

Iain Clarke appears because ^CPallini still cares.

Re: A Question about FindWindowEx

CPallini1-Apr-08 1:39

CPallini

1-Apr-08 1:39

Iain Clarke wrote:
Do you have multiple monitors? I'd doubt this should be a problem, but I'm stabbing in the dark now. Terminal services? Other user logged on? Etc.

I did my test under XP.

Nothing of the above.
He simply has _T("") as last parameter.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

Re: A Question about FindWindowEx

Mushtaque Nizamani1-Apr-08 1:47

Mushtaque Nizamani

1-Apr-08 1:47

Thank you very much.
I got the point; actually I was passing incorrect value for 4th parameter of FindWindowEx function.
Again thanks a lot. Smile | :)

Regards,
Mushq

OT: Iain cautious approach...

CPallini1-Apr-08 2:06

CPallini

1-Apr-08 2:06

Iain Clarke wrote:
TCHAR buf [1001];
::GetWindowText (hWndFind, buf, 1000);

After all, why should we trust GetWindowText?
Roll eyes | :rolleyes:

Re: OT: Iain cautious approach...

Iain Clarke, Warrior Programmer1-Apr-08 3:10

Iain Clarke, Warrior Programmer

1-Apr-08 3:10

I'd already looked up *one* function today... Remembering whether the length included the end NUL (even though I was 99% sure it did) was too much to expect!

Iain.

Iain Clarke appears because ^CPallini still cares.

How can I change the config of Windows services with a MFC program??

oceandeeplawrence1-Apr-08 0:10

oceandeeplawrence

1-Apr-08 0:10

How can I change the config of Windows services with a MFC program??

Re: How can I change the config of Windows services with a MFC program??

Iain Clarke, Warrior Programmer1-Apr-08 0:20

Iain Clarke, Warrior Programmer

1-Apr-08 0:20

MFC doesn't have any support that I'm aware of - but that doesn't stop you from using the good ol' win32 api.

Use OpenSCManager to connect to, um, the service control manager.

Then OpenService, ChangeServiceConfig and ChangeServiceConfig2 to make any changes to a specific service.

I hope that gave you a start. Sometimes it's hard to just find the function names!

Iain.

Iain Clarke appears because ^CPallini still cares.

linked list in SDK

trioum1-Apr-08 0:02

trioum

1-Apr-08 0:02

Is there CList type class or programme in SDK(without using MFC)

Trioum

Re: linked list in SDK

Iain Clarke, Warrior Programmer1-Apr-08 0:36

Iain Clarke, Warrior Programmer

1-Apr-08 0:36

In SDK? No.

But you can use the STL library, and there's lots of classes there to help you.
vector, list, dequeue, etc. They're raw c++, so not chunky DLL to link to. [*]

Iain.

[*] I know you link with a lib... sheesh, you guys are so picky!

Iain Clarke appears because ^CPallini still cares.

Re: linked list in SDK

CPallini1-Apr-08 0:50

CPallini

1-Apr-08 0:50

Fortunately CList is confined inside MFC realm Roll eyes | :rolleyes:

.
You can use std::list [^] instead.
Smile | :)

Re: linked list in SDK

Saurabh.Garg1-Apr-08 1:14

Saurabh.Garg

1-Apr-08 1:14

Like Iain said STL is very good and supports lots of containers and algorithms.

Some good beginners articles are :

An Introductory STL tutorial [^]

The complete guide to STL. Part 1 - vector [^]

The complete guide to STL. Part 2 - list [^]

The complete guide to STL. Part 3 - deque [^]

-Saurabh

escape button

Chandrasekharan P31-Mar-08 23:20

Chandrasekharan P

31-Mar-08 23:20

how do i stop the dialog from closing when u hit the escape button?

Re: escape button

Nibu babu thomas31-Mar-08 23:36

Nibu babu thomas

31-Mar-08 23:36

Chandrasekharanp wrote:
how do i stop the dialog from closing when u hit the escape button?

Read this faq -> http://www.codeproject.com/KB/cpp/cppforumfaq.aspx#mfc_dlgclosekeys[^]

Nibu thomas
Microsoft MVP for VC++

Code must be written to be read, not by the compiler, but by another human being.

Programming Blog: http://nibuthomas.wordpress.com

Re: escape button

nisha0000031-Mar-08 23:41

nisha00000

31-Mar-08 23:41

yea..its working fine here..?wen i give Esc button that dialog box was dissappered ....

Re: escape button

toxcct1-Apr-08 0:34

toxcct

1-Apr-08 0:34

please read and understand the question before replying Sleepy | :zzz:

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