C / C++ / MFC Discussion Boards

Re: Need a few more testers to try C++ XML Library.

Tom Archer1-Jul-05 13:57

Tom Archer

1-Jul-05 13:57

If it will work on Windows CE 3.0, we definitely could use it!

Tom Archer
Visual C++ MVP

Re: Need a few more testers to try C++ XML Library.

Jack Puppy1-Jul-05 15:36

Jack Puppy

1-Jul-05 15:36

I'll give it a try.

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

Re: Need a few more testers to try C++ XML Library.

ThatsAlok1-Jul-05 19:10

ThatsAlok

1-Jul-05 19:10

Me Too

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

cheers,
Alok Gupta

Re: Need a few more testers to try C++ XML Library.

Jack Puppy2-Jul-05 12:29

Jack Puppy

2-Jul-05 12:29

For some reason, I can't send you e-mails, so I'll put my comments down here.

<br />
XML Dev<br />
-------<br />
 <br />
Comments...<br />
 <br />
- make the DevNotice.txt file wrap to ~80 columns<br />
 <br />
[LoadDocument]<br />
<br />
- doesn't support the necessary character encodings:<br />
See http://www.w3.org/TR/2004/REC-xml-20040204/#charencoding for info<br />
 <br />
- doesn't detect the appropriate file encoding:<br />
http://www.w3.org/TR/2004/REC-xml-20040204/#sec-guessing-no-ext-info<br />
 <br />
- at a minimum, you should be able to load all of the sample files on<br />
this page:<br />
http://www.schaake.nu/index.php?page=/manuals/encoding.xml<br />
 <br />
- since you're trying to make this OS independant, you could use:<br />
http://www.unicode.org/Public/PROGRAMS/CVTUTF/ for your conversion code<br />
between utf-8/utf-16.<br />
 <br />
[Other Stuff]<br />
<br />
Bug: Failure to check for empty/all spaces/invalid tag/attribute names.<br />
It's a problem with SetAttribute, AddChild, etc. <br />
 <br />
i.e. pRoot->SetAttribute(_T(""), _T("a")); is allowed.<br />
pRoot->AddChild(_T(" ")) is allowed.<br />
 <br />
- how do you set the XML declaration? (i.e. <?xml version="1.0" encoding="utf-8"?> )<br />
 <br />
- I question the use of the text mappings. What's important is that you can<br />
handle reading Unicode files in an ANSI build, and vice versa. I would just<br />
store all the XML data using wchar_t/std::wstring. utf-8 files could be<br />
converted to ucs-2, and passed to the XML object. utf-16 files could be<br />
passed directly to the XML object.<br />
 <br />
- Usage seems fairly logical and simple from the stuff I tried<br />
 <br />
- Help file layout is very good. The only thing I don't like is lack of<br />
padding on the top and bottom of text in the gray boxes<br />
<br />

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

Re: Need a few more testers to try C++ XML Library.

g3e3-Jul-05 19:35

g3e

3-Jul-05 19:35

I would like to give it a try

Re: Need a few more testers to try C++ XML Library.

Stuart Konen14-Jul-05 16:07

Stuart Konen

14-Jul-05 16:07

There are still a few more of you I need to e-mail the developer release to. I apologize for the delay but I've been rather busy working with Jack's suggestions. I am proud to say I have completed support for the standard encoding types and the conversion process is completely transparent to the developer using the class.

As for my GMail account not receiving every message lately, I'm not entirely sure about what is or isn't causing it. I can only hope it has nothing to do with my Google article which introduces a new class to avoid the official Google API.

I'll be sending the new and improved developer release to all of you very soon.

busy dlg

pnpfriend1-Jul-05 11:29

pnpfriend

1-Jul-05 11:29

Hi all
I want to know if there is a way to refresh the window for the busy dialog. My dialog disappear and cover by the other windows that I open while it is working. The dialog is there working but doesn't see anything at all. How can I refresh the window so I can see the updating variables as well as other resource items.

Thanks

Re: busy dlg

PJ Arends1-Jul-05 16:06

PJ Arends

1-Jul-05 16:06

Using worker threads should help. Check the articles at http://www.codeproject.com/threads/#Threads[^]. Especially http://www.codeproject.com/threads/usingworkerthreads.asp[^].

A picture is worth a thousand words, but it uses up three thousand times the memory.

Running multiple exe's in same window

Bill Chan1-Jul-05 11:03

Bill Chan

1-Jul-05 11:03

Is it possible to run two seperate applications (two EXEs) in the same Window?
The idea is that I have two applications, that use some type of Inter-process Communication (IPC) to query/modify common data. The two applications need to be integrated in such a manner that they appear to the user as a single application.

This doesn't appear to be something that OLE is meant to handle.

Any comments or references would be appreciated.
thanks.

Re: Running multiple exe's in same window

2249171-Jul-05 22:38

224917

1-Jul-05 22:38

Bill Chan wrote:
Is it possible to run two seperate applications (two EXEs) in the same Window?

Its other the way round. A window is owned by an exe. You cannot have two exes to own a same window. To be more specific a window is owned by the thread which created it. And the thread is inturn owned by the exe.

Bill Chan wrote:
The idea is that I have two applications, that use some type of Inter-process Communication (IPC) to query/modify common data.

One method is to have a window in any one of those exe. Which displays the common data. And when ever the data is modified from this exe just post a message to the UI window also, so that it can update the displayed values.
There can be other solutions also, btw where does your data reside. DB, file or registry ?

suhredayan
There is no spoon.

Re: Running multiple exe's in same window

Bill Chan2-Jul-05 15:36

Bill Chan

2-Jul-05 15:36

Ideally the data would be loaded in memory of one of the applications.

We are investigating the feasibility of integrating our 2D drafting application (like AutoCAD) with someone elses solid modelling program. The drafting program needs to communicate with the solid modelling program.

Wrong behavior of __int64

Kristian Kratzenstein1-Jul-05 10:49

Kristian Kratzenstein

1-Jul-05 10:49

Hi,

I use a __int64 value and calculate :

__int64 x = (0x00000000000005fa - 0x0000000000000660) / 2i64;

what I get : 0x7fffffffffffffcd instead of 0xffffff.....
That relates into a very big positive value. not a small negative I like to have.

Could anyone tell, what could go wrong here ?

I use VC++ 2003 (EnterpriveDev)

kind regards

Re: Wrong behavior of __int64

PJ Arends1-Jul-05 15:49

PJ Arends

1-Jul-05 15:49

How are you checking the value of x?

I'm not a complete idiot -- Some parts are missing.

Re: Wrong behavior of __int64

evilhehe1-Jul-05 15:59

evilhehe

1-Jul-05 15:59

__int64 x = (0x00000000000005fa - 0x0000000000000660) / 2i64;

You divided the result by 2, which gives you 0x7fffffffffffffcd.

Re: Wrong behavior of __int64 [ edited ]

PJ Arends1-Jul-05 16:14

PJ Arends

1-Jul-05 16:14

evilhehe wrote:
You divided the result by 2, which gives you 0x7fffffffffffffcd.

Try that again.

1530 - 1632 = -102

-102 / 2 = -51 (0xffff ffff ffff ffcd)

[edit]
Sorry, you are correct if OP is using unsigned __int64.

Maybe that is the problem
[/edit]

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Re: Wrong behavior of __int64 [ edited ]

Kristian Kratzenstein1-Jul-05 19:23

Kristian Kratzenstein

1-Jul-05 19:23

I tried this within two lines, and get the correct result. (like your example). Semm like anything switched the calculaten to unsigned (any variable). I ll check this.

thanks for help.

Accessing VB Com collection Item

hulinning1-Jul-05 8:47

hulinning

1-Jul-05 8:47

Hi all,
I try to access to VB com collection Item method but I got a bad type error.
I import VB COM library into vc++ application. From the smart pointer of the collection, the function requests a VARIANT* data type. I create a variant variable as assigned 1 to it to get first item in the collection.

Here is my code:
_clsMacManPtr Mac ;
if ( Mac->ReadDailyMachiningReport (bstrFilePath) != 0 )
{
Reports = Mac->GetDailyMachiningReport () ;

if ( Reports->Count > 0 )
{
vValue.iVal = 1 ;

Report = Reports->GetItem(&vValue ) ; // failed here

bstrValue = Report->NoWork ;

}
}

I appreciate for any comments

Re: Accessing VB Com collection Item

Jose Lamas Rios1-Jul-05 9:15

Jose Lamas Rios

1-Jul-05 9:15

linhjob wrote:
Report = Reports->GetItem(&vValue ) ; // failed here

What is the error message?

--
jlr
http://jlamas.blogspot.com/[^]

Re: Accessing VB Com collection Item

Anonymous5-Jul-05 15:39

Anonymous

5-Jul-05 15:39

I got a bad data type error.

Re: Accessing VB Com collection Item

Anonymous5-Jul-05 15:39

Anonymous

5-Jul-05 15:39

I got a bad data type error.

Re: Accessing VB Com collection Item

Jose Lamas Rios5-Jul-05 17:06

Jose Lamas Rios

5-Jul-05 17:06

Anonymous wrote:
I got a bad data type error.

Yep, you said that before. But, what was/is the exact error message? The error message should say something like "cannot convert from xxxxx to yyyyy."

--
jlr
http://jlamas.blogspot.com/[^]

Re: Accessing VB Com collection Item

hulinning10-Jul-05 5:00

hulinning

10-Jul-05 5:00

Yes, that is the error message I got it by catching com error.
I have to create a function that passes an integer to get the an item from vb collection to get around this. However, I wonder why it would not work with variant variable.
But if you do know please let me know.
Thanks for you comments

How to use CScrollBar from a template?

IlanTal1-Jul-05 8:47

IlanTal

1-Jul-05 8:47

I want to have a scrollbar in a dialog box, so I drag it in at design time. Then I want to attach this to a control m_myScroll.
My problem is that I don't know what to do with the Create function.
The create function wants me to specify a CRect with the size of the scrollbar, but I've already fixed its size at design time (as well as its position).
The Create function asks me for a nID, which I give it from the dialog box value of the scrollbar I dragged onto the form.
Also the Create function talks about a ShowScrollBar, which is also not clear to me. After all, I've already defined it on my form.

I'm confused and what I've written doesn't work, so I'm doing something wrong. Can anyone help me?

Thanks,
Ilan

Re: How to use CScrollBar from a template?

Cedric Moonen1-Jul-05 9:20

Cedric Moonen

1-Jul-05 9:20

Hi Ilan,

You don't need to call Create (and you cannot, in your case). Create is used only if you create your ScrollBar (and this is true for any other control) at runtime. In your case, you use the resource editor so this is done automatically. Just drop it on your dialog and attach a control to it. And that's it !

Re: How to use CScrollBar from a template?

IlanTal2-Jul-05 19:12

IlanTal

2-Jul-05 19:12

Thanks again for the help. Apparently I didn't tell you the whole truth. In fact, I'm using a CDialogBar not a CDialog object. In the CDialogBar, it doesn't have the Add Variable object, so I did it manually with the DDX control.
Apparently, it is not for nothing that the Add Variable doesn't exist. The problem is that the CSrollBar has no window so it keeps crashing on the ASSERT check on the window. I tried my best to set the window, but with no success. I may have no choice but to actually create the scroll bar with the Create command and not drop it in at design time.

Thanks,
Ilan

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