C / C++ / MFC

Re: No more DSP but DSW and SLN in VC6.0

30-Apr-13 3:31

If the problem was so obvious I would not post it here.
Please read my OP and follow-up response.
Vaclav

H.Brydon30-Apr-13 18:58

H.Brydon

30-Apr-13 18:58

In the C++ world, VS6 used different project and workspace files from subsequent VS versions. Here is a summary:

               Project      Workspace/Solution
                 File            File
VS6             x.dsp            x.dsw
VS.Net 2002     x.vcproj(?)      x.sln
VS.Net 2003     x.vcproj         x.sln
VS 2005         x.vcproj         x.sln
VS2008          x.vcxproj(?)     x.sln
VS2010          x.vcxproj        x.sln

This is from memory - there may be errors.

VS6 also used x.sln files but they were for web projects (and maybe something else?). If you end up with a x.dsp and x.sln file with VS6 then something is confused. I am doubtful that it will work. You probably want to delete the x.sln file, go to VS6 and select "Start a new project" and add your existing x.dsp to it. This should create an x.dsw file for you. If it creates or tries to use the x.sln file then something is wrong...

--
Harvey

Re: No more DSP but DSW and SLN in VC6.0

Vaclav_1-May-13 9:38

Advise / patterns on modeling data and business components

1-May-13 9:38

Thanks,
unfortunately I just deleted the sln and it did not help.
I have no VS greater that 6 on my box, so everything works in VS 6.I may try adding VS 2008 again to test the CMAke.
Many thanks for your input, appreciate it.

This also partialy explains why I can start a new project from dsw file but I cannot add DSW into existing project - IDE complains.

Vaclav

Help with KB Q147578

ForNow29-Apr-13 8:33

ForNow

29-Apr-13 8:33

Hi
I need help with the following knowledge base article
http://support.microsoft.com/kb/147578[^]

In a method of my main window I have the following code

CMainframe::Process()
{

HWND main_handle = (HWND) this;

In my worker thread

CWnd* windowptr = new CWnd;

windowptr->attach(main_handle);

windowptr->SendMessage(...

My question is this coding correct as the article says
When working between threads not to pass object pointers
Rather handles and attach the handles to the MFC object

Thanks

As I am s getting exceptions on the SendMessage in my worker thread

Re: Help with KB Q147578

David Crow29-Apr-13 9:41

David Crow

29-Apr-13 9:41

ForNow wrote:

As I am s getting exceptions on the SendMessage in my worker thread

What exception is being thrown? Are you trying to send a UI-related message to the main thread from a worker thread?

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Re: Help with KB Q147578

ForNow29-Apr-13 9:56

ForNow

29-Apr-13 9:56

The worker thread is communicating with Hercules
dos C program when I get information
From Hercules I do a readfile (named pipes)
And send the buffer ptr as a wparam

The buffer is allocated on the heap via new

So any thread can access it

Fernando A. Gomez F.29-Apr-13 4:50

Fernando A. Gomez F.

29-Apr-13 4:50

Hello everyone.

I was wondering what advice can you give on how to create a data/business model in C++. I mean, when working with C# I usually have no problems, simply follow .NET's guidelines, but it seems there aren't guidelines in C++ on this regard. Is there any example you'd like to share?

I'm thinking common scenarios like a sales system (product, warehouse, pricing, purchase order) or a search inverted index (term, documents, posting, posting lists, dictionaries).

What are your thoughts?

How to make an edit box accept only digits from 0 - 9 in mfc.?

mbatra3128-Apr-13 21:15

Re: How to make an edit box accept only digits from 0 - 9 in mfc.?

28-Apr-13 21:15

Hi,

I have a dialog box and an Edit box control on that. I want to make this edit box accept only digits ( 0 - 9 ), no character or special characters.

I have changed its property "Number" to true in resource dialog but when I run the application, the screen blinks every time I press any character.

Or is there any way that I can manually change it to accept only digits.?

Any help will be appreciated.

Regards,
Mbatra

Freak3028-Apr-13 22:10

Freak30

28-Apr-13 22:10

You could overwrite the OnChange Handler (I think it was EN_CHANGED or something like that) and manually get the text, check for any non-digit and remove it. Then set the corrected Text with SetWindowText(), or ReplaceSel().

There are however several pitfalls you need to avoid. First, setting the text programmatically also calls the event handler, and you need some status variable to prevent "recursive" calls.

Second, You need to take the cursor position into account. When you call SetWindowText(), usually the whole edit control content is selected. You could set the cursor position to the end with SetSel() (IIRC you need two calls, one to mark everything and at the same time set the cursor to the end, a second one to mark nothing and leave the cursor where it is.) Since the user may have entered something in the middle you may want to get the cursor position before changing anything (with GetSel()) and set it back to that position later.

I usually avoided these issues by letting the user enter the wrong values and checking them when the control lost focus, unless where was a strong argument against this approach.

Re: How to make an edit box accept only digits from 0 - 9 in mfc.?

mbatra3128-Apr-13 22:35

Re: How to make an edit box accept only digits from 0 - 9 in mfc.?

28-Apr-13 22:35

Thanx for the reply Freak30.

I got the solution.

Regards,
Mbatra

Vaclav_29-Apr-13 6:11

Re: How to make an edit box accept only digits from 0 - 9 in mfc.?

29-Apr-13 6:11

How about sharing your solution here?

mbatra3129-Apr-13 18:54

Re: How to make an edit box accept only digits from 0 - 9 in mfc.?

29-Apr-13 18:54

Hi,

Here is the solution:

I handled OnUpdate() function.
This will not allow user to enter characters or special characters.

void Position::OnUpdateEditRotate()
{

CString str;

(static_cast<cedit*>(GetDlgItem(IDC_EDIT_ROTATE)))->GetWindowTextW(str);

LPTSTR pBuff = str.GetBuffer( 10 );

bool bProblem = false;

for ( int indx = 0; indx < str.GetLength(); indx++ )
{
char nChar = pBuff[indx];

if ( ( ( nChar >= 'A' ) && ( nChar <= 'Z' ) ) ||
( ( nChar >= 'a' ) && ( nChar <= 'z' ) ) ||
( ( nChar >= 33 ) && ( nChar <= 47 ) ) ||
( ( nChar >= 58 ) && ( nChar <= 64 ) )||
( ( nChar >= 91 ) && ( nChar <= 96 ) )||
( ( nChar >= 123 ) && ( nChar <= 126 ) ))
{
MessageBox();
}
else
{
bProblem = true;
break;
}
}

str.ReleaseBuffer();
}

C++

Vaclav_30-Apr-13 3:47

Re: How to make an edit box accept only digits from 0 - 9 in mfc.?

30-Apr-13 3:47

Thanks for sharing. It would probably work same if you check just for < numbers > range.
Vaclav

mbatra3130-Apr-13 19:27

Re: How to make an edit box accept only digits from 0 - 9 in mfc.?

30-Apr-13 19:27

Yes Indeed, but in that case it will block some keys also (e:g: Del, space, etc ...).
I want to block only characters and special characters.

Regards,
Mbatra

Rolf Kristensen29-Apr-13 4:18

Rolf Kristensen

29-Apr-13 4:18

If using DoDataExchange and DDX_Text, then you also have access to DDV_MinMaxInt (And other DDV friends[^])

problem in clips programming

a.fatemeh28-Apr-13 2:02

28-Apr-13 2:02

hi every one, i'm trying to write a simple code in clips but I'm getting this error which i can't find what the problem is.
I would be grateful if any one could help.

Defining deffunction: user-Question
Defining defrule: Rule0
[PRNTUTIL2] Syntax Error: Check appropriate syntax for defrule.

ERROR:
(defrule MAIN::Rule0
(not (tank-is-full ?)
=>

this is part of my code:

<blockquote class="FQ"><div class="FQA">Quote:</div>;;;************
;;;* Functions*
;;;************
(deffunction user-Question(?question ?answer $?values)
   (printout t ?question)
   (bind ?answer(read))
   (stringp ?answer)
 =>
    (bind  ?answer(lowcase ?answer))
    
  (while (not (member$ ?answer ?values)) do
      (printout t ?question)
      (bind ?answer(read))
      (stringp ?answer)
    =>
    (bind  ?answer(lowcase ?answer))
 )
 ?answer
)

  
;;;**********************
;;;* ENGINE STATE RULES *
;;;**********************

(defrule Rule0
    (not (tank-is-full ?)
 =>
    (bind ?tank-is-full user-Question("Is there any petrol in the tank(Yes|No)?"yes YES Yes NO no No)  
   (assert(tank-is-full ?tank-is-full)
 )
;;;****************************
</blockquote>

NotPolitcallyCorrect28-Apr-13 2:13

NotPolitcallyCorrect

28-Apr-13 2:13

I am certainly not an expert but I am quite sure that the code that you posted is not C, C++ or MFC. At least it is no variant of C, C++ or MFC that I recognize. You sure you are in the right forum?

a.fatemeh28-Apr-13 2:19

28-Apr-13 2:19

I'm not sure where should I post this but it's part of the code in Clips (C Language Integrated Production System ) environment which is software tool for building expert systems.
please let me know where should I post it?

Richard MacCutchan28-Apr-13 2:29

Richard MacCutchan

28-Apr-13 2:29

I already gave you a link to the Clips page. You need to try there, as that is where you will find other people who understand that system.

Use the best guess

a.fatemeh28-Apr-13 2:51

28-Apr-13 2:51

thanks,I have used that link but I think may be I could find my answer here.

thanks i'll try once more

NotPolitcallyCorrect28-Apr-13 2:31

NotPolitcallyCorrect

28-Apr-13 2:31

a.fatemeh wrote:
please let me know where should I post it

If it were me looking to know about someone else's language or IDE, I would go to the source and ask them. For CLIPS, I would go here[^]

My Vote of 1

Keith Barrow28-Apr-13 7:45

Keith Barrow

28-Apr-13 7:45

You've been told that this forum isn't suitable, yet have decided to post here again. No matter how may times you post CLIPS != c || c++, the c=part denotes it can be integrated with c-based systems. Additionally CLIPS is relatively specialised, rule based programming is different to the way c operates.

All this adds up to one thing: the advice I have seen here so far is spot-on: don't post this here as this isn't the correct forum and few people here will have an interest in CLIPS, your chances will be vastly improved by posting on a specialised CLIPS forum where everyone is there as they know about/are interested in it.

The defrule for Rule0 has an unbalanced number of brackets BTW my guess is there is one missing at the end of the "not" line, and the ? after tank-is-full looks suspicious. Of course I know next to nothing about CLIPS, which is why going to a CLIPS forum would be so handy.

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Re: My Vote of 1

a.fatemeh28-Apr-13 22:46