C / C++ / MFC Discussion Boards

Tom Archer14-Jun-05 12:17

14-Jun-05 12:17

Honestly, there's all sorts of issues here
* incorrect error checking
* use of incorrect types
* calling load when the file doesn't exist
* appending a node before you've created one
* appending a data node before the processing noe
* ...

I started to correct them all, but I think I found some code you can copy & paste that will get you started. Have a gander at http://www.codecomments.com/archive308-2004-5-195084.html[^] as this person is creating a simple document with a declaration node also. I ran the code and it works so this should get you started.

By the way, he's using the "older" style of manually using pointers and releasing them and so - as opposed to smart pointers. However, I'd just leave his code as is until you get a better feel for using the MSXML and then change it later.

At least that's the way I've always coded - get it to work first and then make it pretty.

Cheers,
Tom Archer - Archer Consulting Group

"So look up ahead at times to come, despair is not for us. We have a world and more to see, while this remains behind." - James N. Rowe

Re: XML namespace problem i think

LCI15-Jun-05 5:56

LCI

15-Jun-05 5:56

Am i understanding this correctly?

We use a Node to represent the very first first tag in the document. After that we use elements for all subsequent tags. Is this correct?

If so, i understand how to add set attributes for elements but i do not see how to set attrabutes for Nodes. I am trying to set some attributes for my very first node in the document.

By the way, Tom that example really helped.

Thanks

Multiple languages in single resource file

senseilee14-Jun-05 3:38

senseilee

14-Jun-05 3:38

I'm trying to get a simple example working that contains multiple string tables in a single resource file. In VC 7.1 (and maybe earlier), you can select "Insert Copy" on an existing dialog in the resource editor and specify a different language.

If I look in the .rc file, both English and French (in this case) sections exist. When I build my application, I would expect my French dialog to come up when I change my Windows' Regional settings to French (France). But it doesn't. Has anyone gotten this to work?

Thanks for any help!

Re: Multiple languages in single resource file

Blake Miller14-Jun-05 9:19

Blake Miller

14-Jun-05 9:19

Are you using MFC?

Because 23 out of 24 calls to find a resource only use FindResource instead of FindResourceEx.

The FindResource function determines the location of a resource with the specified type and name in the specified module. To specify a language, use the FindResourceEx function.

I am 'guessing' that the FindResource function returns the first resource it finds matching the module, name, and type, regardles if it matches the user's current language settings or not. For exmaple, look into the MFC source code at AfxFindResourceHandle.

Your best bet might be to write a wrapper for FindResource, and get it linked ahead of ALL the other libraries your app uses, or else hijack it. It can obtain the user's current language (see AfxGetPropSheetFont in MFC source as a decent example) and then you might have better luck.

Review these article (by title) on CP for some ideas:
APIHijack - A Library for easy DLL function hooking.
DLL Injection and function interception tutorial
HookImportFunctionByName v1.0

[out] parameters for ActiveX control interface

Ian Bowler14-Jun-05 6:31

Ian Bowler

14-Jun-05 6:31

Hello,

I have an activeX control. I'm using class wizard to create the interface. How do I specify a parameter as an OUT parameter?

Thanks!

-Ian

Re: [out] parameters for ActiveX control interface

Ian Bowler14-Jun-05 8:36

Ian Bowler

14-Jun-05 8:36

Nevermind, I figured it out!

bizarre asm problem

heebiejeebies14-Jun-05 5:19

heebiejeebies

14-Jun-05 5:19

ok,im trying to work with António Feijão,Remote Library
ContextRemoteExecute, to execute code into an remote process(on windows 2000 SP4).I would post the code but its rather long winded,but basically here is what im doing

1-open remote process
2-allocate memory with VirtualAllocateEx
3-write my code to allocated spot
4-suspend thread
5-get threads context registers
6-change the threads Eip to my allocated mem (0x00C7001C)
7-resume thread,and it crashes.

here is the disassembly of the remote process(location returned by VirtualAllocateEx and where my injected code lies)
00C6FFFF ?? ???
00C70000 55 push ebp
00C70001 8B EC mov ebp,esp
00C70003 83 EC 40 sub esp,40h
00C70006 53 push ebx
00C70007 56 push esi
00C70008 57 push edi
00C70009 B8 B8 0B 00 00 mov eax,0BB8h
00C7000E 50 push eax
00C7000F FF 15 A0 88 4F 00 call dword ptr ds:[4F88A0h]
00C70015 5F pop edi
00C70016 5E pop esi
00C70017 5B pop ebx
00C70018 8B E5 mov esp,ebp
00C7001A 5D pop ebp
00C7001B C3 ret
00C7001C E8 00 00 C7 00 call 018E0021 //here is the problem
00C70021 EB FE jmp 00C70021
00C70023 00 00 add byte ptr [eax],al
00C70025 00 00 add byte ptr [eax],al

now i dont understand why "E8 00 00 C7 00" is calling 018E0021 ?? shouldnt it "call 00C70000" like its suppose to? Unsure | :~

COleDateTime AddDays()

DanYELL14-Jun-05 4:57

DanYELL

14-Jun-05 4:57

I read on the web that you can add a COleDateTimeSpan to
a COleDateTime. How can I do this?

I want to put together a function that adds days to a current
date. Im really having a hard time with this. The algorithm
works for awhile, and then I start getting -1/-1/-1 for the
dates.

Please, any response any one can give me will be greatly
appreciated.

Sincerely,
Danielle Brina (an overworked graduate student)

Re: COleDateTime AddDays()

David Crow14-Jun-05 2:10

David Crow

14-Jun-05 2:10

Something like:

COleDateTime today = COleDateTime::GetCurrentTime();
COleDateTimeSpan oneDay(1, 0, 0, 0);
COleDateTime tomorrow = today + oneDay;

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: COleDateTime AddDays()

DanYELL14-Jun-05 5:56

DanYELL

14-Jun-05 5:56

Is there any easy way to add a month, a half-year or a year to
the current date using COleDateTimeSpan?

Re: COleDateTime AddDays()

David Crow14-Jun-05 3:03

David Crow

14-Jun-05 3:03

DanYELL wrote:
Is there any easy way to add a month...to
the current date using COleDateTimeSpan?

Sure there is. Given that you know what month it is, just add the number of days in the current month and you'll get the same date in the next month. For example, today is June 14th. June has 30 days. Add 30 days to June 14th and we get July 14th. Make sense?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Convert CString to CTime / COleDateTime

P-Rex14-Jun-05 4:39

P-Rex

14-Jun-05 4:39

Hi guys,

I have a string, for example '1085462900'. I have to convert this string into a CTime / COleDateTime value. How can i do this?
I get this string from a oracle database.

P. Cool | :cool:

Re: Convert CString to CTime / COleDateTime

David Crow14-Jun-05 2:07

David Crow

14-Jun-05 2:07

What does that number represent?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Convert CString to CTime / COleDateTime

P-Rex14-Jun-05 5:17

P-Rex

14-Jun-05 5:17

This number represents Date and Time. The field on the database is from type int which contains this number.

Re: Convert CString to CTime / COleDateTime

David Crow14-Jun-05 2:22

David Crow

14-Jun-05 2:22

P-Rex wrote:
This number represents Date and Time.

I figured that much out. Is it the number of seconds since a particular date? Is it the BCD form of a date? Be specific.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Convert CString to CTime / COleDateTime

DavidR_r14-Jun-05 8:00

DavidR_r

14-Jun-05 8:00

Just for the common knowlege. This number is called UTC time and represents the number of seconds ellapsed since 1.1.1970, it is 0+ GMT time zone without day light saving addition

DavidR

Re: Convert CString to CTime / COleDateTime

David Crow14-Jun-05 8:04

David Crow

14-Jun-05 8:04

DavidR_r wrote:
This number is called UTC time and represents the number of seconds ellapsed since 1.1.1970...

Ok, both CTime and ColeDateTime have constructors for handling such a value.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: Convert CString to CTime / COleDateTime

JWood14-Jun-05 6:03

JWood

14-Jun-05 6:03

try

CTime ct = CTime((time_t)(_atoi((const char*)cs)));

and see if it matches the Oracle value

Re: Convert CString to CTime / COleDateTime

P-Rex14-Jun-05 20:22

P-Rex

14-Jun-05 20:22

Thank you guys

it works fine

make stacktrace or what calls DllCanUnloadNow?

ThinkingPrometheus14-Jun-05 4:21

ThinkingPrometheus

14-Jun-05 4:21

hiho@ll

i have some trouble with a browser helper object

using Internet Explorer is no problem, but if i close IE i get an Error message (somethings reading from space which it isn't allowed)
i traced a bit using MessageBox Frown | :-(

and i found that the helper object destroys itself correctly using the WindowProc WM_Destroy event
then i get the error
and then DllCanUnloadNow is called successfully!

so what function is normally between the destroy windowproc and dllcanunloadnow?

thx@ll

Looking for Dialog Manager component for VC++ 7.

mlatimer14-Jun-05 4:00

mlatimer

14-Jun-05 4:00

Hi all

Wonder if you can help me, we are currently programing in MFC for our app which is dialog based - floating windows with 2 dialogs.

Our plans require more dialogs and a way to manage them on screen. What are are looking to do is create a "docking" architeture simlar to the toobars used in Photoshop (but at teh application top level).

Does anyone know of a component or toolkit that allows / helps build a dialog based UI with docking (allowing multiple dialogs to doc) / rollups etc ... or have any pointers or construction ideas?

All help very gratefully recived...

How to run a thread as a member function of a class?

Eytukan14-Jun-05 3:45

Eytukan

14-Jun-05 3:45

i used CWinThread.. the error message i'm getting is TrayDialog.obj : error LNK2001: unresolved external symbol "public: __thiscall CTrayDialog::CTrayDialog(void)" (??0CTrayDialog@@QAE@XZ).Please help..

CWinThread *pThread;

UINT Thread(LPVOID lp)
{
while(1)
{
AfxMessageBox("In Thread!");
Sleep(300);
}
return 0;
}

void CTrayDialog::TestThread()
{
CTrayDialog *obj;
obj=new CTrayDialog;
pThread=AfxBeginThread(Thread,obj);
}

thanks,
vivek

Re: How to run a thread as a member function of a class?

Bob Stanneveld14-Jun-05 4:08

Bob Stanneveld

14-Jun-05 4:08

Hello,

Add the following lines of code to TrayDialog.cpp:

CTrayDialog::CTrayDialog() : CDialog(NULL, CTrayDialog::IDD)
{
}

What you are doing here is add the unresolved external symbol (the default contructor), but I think that you need an other solution: change the following code:

void CTrayDialog::TestThread()
{
    CTrayDialog *obj;
    obj=new CTrayDialog; 
    pThread=AfxBeginThread(Thread,obj);
}

to:

void CTrayDialog::TestThread()
{
    CTrayDialog *obj;
    obj=new CTrayDialog(this); 
    pThread=AfxBeginThread(Thread,obj);
}

Hope this helps. Big Grin | :-D

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: How to run a thread as a member function of a class?

Eytukan14-Jun-05 1:43

Eytukan

14-Jun-05 1:43

thanks for ur help... but,
:(Compiling...
TrayDialog.cpp
D:\CLTRK\CLTRK02\TrayDialog.cpp(40) : error C2039: 'IDD' : is not a member of 'CTrayDialog'
d:\cltrk\cltrk02\traydialog.h(39) : see declaration of 'CTrayDialog'
D:\CLTRK\CLTRK02\TrayDialog.cpp(40) : error C2065: 'IDD' : undeclared identifier
D:\CLTRK\CLTRK02\TrayDialog.cpp(487) : error C2664: '__thiscall CTrayDialog::CTrayDialog(unsigned int,class CWnd *)' : cannot convert parameter 1 from 'class CTrayDialog *const ' to 'unsigned int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
Error executing cl.exe.

MyTrayDlg.obj - 2 error(s), 0 warning(s)

what to do now bob? what's that IDD?

vivek

Re: How to run a thread as a member function of a class?

Bob Stanneveld14-Jun-05 1:49

Bob Stanneveld

14-Jun-05 1:49

Normally, when you use MFC and you create a dialog class, this class has a member called IDD. This is the dialog resource (how the windows looks and what controls are on it).

Since I don't know your classes, I don't know why you don't have them, but you can remove the line: : CDialog(...).

viveking wrote:

D:\CLTRK\CLTRK02\TrayDialog.cpp(487) : error C2664: '__thiscall CTrayDialog::CTrayDialog(unsigned int,class CWnd *)' : cannot convert parameter 1 from 'class CTrayDialog *const ' to 'unsigned int'

I must have switched the parameters. So the dialog resource comes second instead of first. If you are wondering what the other parameter is, it's the parent window of the dialog.

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

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