C / C++ / MFC

Ben Burnett13-Jul-01 17:08

13-Jul-01 17:08

I think the culprit is your last ASSERT statement, CString's Find member returns -1, if the sub string was not found.

It should be:

ASSERT ( strTest.Find ( _T ( "world" ) ) != -1 )

-Ben

---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" Wink | ;)

Steve T13-Jul-01 18:56

Steve T

13-Jul-01 18:56

Nope, It should be just as James wrote it...
You want the ASSERT to PASS if "world" is NOT found.
In fact I compiled this snippet and both asserts
pass just fine on my system.

Steve T.

Ben Burnett13-Jul-01 19:29

13-Jul-01 19:29

Your right Steve, I have no idea what it was that I thought he was asking... This kind of thing has been happening all day, I must be on crack or something Wink | ;)

cheers,
-Ben

---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" Wink | ;)

Passing ADO Connection from VB object to an VC Object

James Millson13-Jul-01 21:40

James Millson

13-Jul-01 21:40

That's what I thought Confused | :confused:

. I can only get it to pass on my system if I do:

CString strTemp = _T("hello world");
CString strTest = new CString(strTemp).GetBuffer(0);
ASSERT(strTest.Replace(_T("world"), _T("universe")) > 0)
ASSERT(strTest.Find(_T("world")) == -1)

And I don't know if that's a very good way of doing it.

And the problem only occurs in the current usuage (i.e. it works elsewhere in the project). But i've stepped backwards and forwards for hours and nothing else looks wrong, and nothing is there to indicate it is.

How very odd Frown | :(

Cheers

James Millson

p.s. Oh, and yes, I made up the actual text in the example above, but other than that it is the same. In both cases the equivalent of "world" should not be present in the string.

13-Jul-01 16:20

I have one VB object and one VC object.

This VB object will create one ADO Connection object.
To share the same connection, it is need to pass the connection
from VB to VC object.

Is it possible?
If yes, how can it be done?

Thanks.

Confused | :confused:

A little conversion...

Kyle13-Jul-01 14:49

Kyle

13-Jul-01 14:49

Does anybody here know what this can be translated to in the win32 api?
AfxGetThreadState()->m_lastSentMsg;
i know it has something to do with the message queue, but i want to know what its API equivelent is

Re: A little conversion...

Ben Burnett14-Jul-01 7:00

Carriage Return vs. New Line

14-Jul-01 7:00

I image you could just declare a global MSG variable, and each time your window procedure gets called, just store the messages information.

-Ben

---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" Wink | ;)

John Uhlenbrock13-Jul-01 11:53

John Uhlenbrock

13-Jul-01 11:53

I use the getline function to retrieve lines from files. The problem is I have some files where lines are ended with a Carriage Return "\r" and some that are ended with a New Line "\n". How can I satisfy both without reading and checking every character?

Re: Carriage Return vs. New Line

stephen.hazel13-Jul-01 12:15

stephen.hazel

13-Jul-01 12:15

Usually it's either \r\n or just \n.
What I do is totally strip any \r i come across and just
process the \n.

Dao Database Creation

otvac13-Jul-01 10:52

otvac

13-Jul-01 10:52

Is there a way to create a new Dao database using VC++? I know that this requires long answer, so if someone could provide a link to any help, it would be greatly apperciated.

Richard

Re: Dao Database Creation

Carlos Antollini13-Jul-01 11:07

Carlos Antollini

13-Jul-01 11:07

yes, Using the CDaoDatabase::Create();

CDaoDatabase pdaodb;

pdaodb.Create("C:\\Mydb.mdb", dbLangGeneral, dbVersion30);

Cheers!!! Big Grin | :-D

Carlos Antollini.

StreamOut / In

Frank Deo13-Jul-01 10:29

Frank Deo

13-Jul-01 10:29

Hi,

Would someone kindly help me out of this 6 hour long struggle. Confused | :confused:

I have an SDI app with a RichEditView. I don't need the RTF functionality, so I want to serialize text only. I've searched everywhere (even the MS Newsgroups) for a sample on how to serialize using streamin and streamout.

I understand that I have to set m_bRTF to false in order to save / load in text only, but for the life of me I can't find a sample that shows how.

An explanation or sample code would be great.

Thanks,
Frank

Tim Deveaux13-Jul-01 11:23

Tim Deveaux

13-Jul-01 11:23

I'm not typing from much eperience here, but this is what a standard sample CMyAppWizCreatedRichEditDoc::Serialize does:

void CEditDoc::Serialize(CArchive& ar)
{
    if (ar.IsStoring())
    {
        // TODO: add storing code here
    }
    else
    {
        // TODO: add loading code here
    }

    // Calling the base class CRichEditDoc enables serialization
    //  of the container document's COleClientItem objects.
    // TODO: set CRichEditDoc::m_bRTF = FALSE if you are serializing as text
    CRichEditDoc::Serialize(ar);
}

CRichEditDoc::Serialize gets a pointer to the CRichEditView type object and calls serialize on that - and yes, if I don't set m_bRTF false some files fail to get read in.

If you are not using a CRichEditDoc, I would think you could fake it with a call to the view, but not sure what then happens to m_bRTF.

You can look in ...\MFC\SRC\VIEWRICH.CPP to see all the fun Stream stuff. The above code comes from the App Wizard if you select CRichEditView for your view class.

Frank Deo13-Jul-01 11:28

Frank Deo

13-Jul-01 11:28

Thanks for the info Tim. My app is a basic appwizard generated sdi mfc app that uses RichEditDoc, and RichEditView. The serialize function in my app is exactly what you've listed in your example.

However, Where do I go from here? Ah the humanity! Where's the tylenol. Dead | X|

Frank

Tim Deveaux13-Jul-01 11:40

Tim Deveaux

13-Jul-01 11:40

Hmm... I just use the Open... and Save stuff... however, I do notice that if I don't set the m_bRTF it will only show (the text of) files with the .txt extension...

Oh - and I think there's some tylenol in that white metal box with the red cross on it on top of the water cooler...

later...

CRichEditDoc::m_bRTF = FALSE;
CRichEditDoc::Serialize(ar);

Frank Deo13-Jul-01 11:52

Frank Deo

13-Jul-01 11:52

Thanks again Tim.

I found some Excedrin...so now I'm on a major caffiene high! Woohoo!

Frank

CCheckListBox??

SAV13-Jul-01 9:33

SAV

13-Jul-01 9:33

GREETINGS

Could somebody help me with CheckListBox?

I can create it with .Create function, but it's useless. I need to attach it to ListBox control on the dialog.

Thank you!

LOVE & PEACE to everyone

Ben Burnett13-Jul-01 10:00

13-Jul-01 10:00

Simply do what you usually would do to associate a litbox with a variable, and then substitute CListBox for CCheckListBox.

-Ben

---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" Wink | ;)

SAV14-Jul-01 0:25

SAV

14-Jul-01 0:25

Thank you Ben Smile | :)

.

I tried it, but there occures an error when i start the program...
Is there any way do do it with either SubclassDlgItem or something else? Confused | :confused:

Thank you very much!

LOVE & PEACE to everyone

LOVE & PEACE to everyone

Ben Burnett14-Jul-01 6:54

14-Jul-01 6:54

Opps... forgor two important parts;
1) the listbox must be owner draw fixed.
2) the 'Has Strings' style must be enabled.

-Ben

---------
On the topic of code with no error handling -- It's not poor coding, it's "optimistic" Wink | ;)