Re: A teaser - C / C++ / MFC Discussion Boards

Re: A teaser

ThatsAlok5-Jun-06 19:20

ThatsAlok

5-Jun-06 19:20

SaRath C wrote:
1. Set value inside the destructor

If i set the value inside the destrutor, then how that value will be persist!

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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Re: A teaser

toxcct5-Jun-06 21:23

toxcct

5-Jun-06 21:23

ThatsAlok wrote:
If i set the value inside the destrutor, then how that value will be persist!

actually, a destructor is a function like another. the only implicit call with it is when the object looses focus. but it is exactly like when some tries to delete this in the constructor. it is not really the appropriate place for that. a ctor is mostly to initialize the object state, and the dtor is mostly for releasing memoring that could have been allocated in the object life ; no more, no less, but not the opposite ! D'Oh! | :doh:

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: A teaser

ThatsAlok5-Jun-06 22:35

ThatsAlok

5-Jun-06 22:35

toxcct wrote:
the only implicit call with it is when the object looses focus.

Rather says Losses focus pernamentaly!

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: A teaser

Nemanja Trifunovic5-Jun-06 5:51

Nemanja Trifunovic

5-Jun-06 5:51

If anybody thinks of anything more horrible than this, let me know Poke tongue | ;-P

#define private public
#include"unit1.h"
int main()
{
    MyClass myObject(300);
    myObject.m_nNum = 400;
}

My programming blahblahblah blog. If you ever find anything useful here, please let me know to remove it.

Re: A teaser

toxcct5-Jun-06 21:26

toxcct

5-Jun-06 21:26

Nemanja Trifunovic wrote:
#define private public

ahemm, i'm not really sure about the level of this guy (and all the other around, reading), so is it really a good thing to point out that horror ?

working though ! lol

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: A teaser

Nemanja Trifunovic5-Jun-06 6:13

Nemanja Trifunovic

5-Jun-06 6:13

And now to give a serious answer:

#include"unit1.h"
int main()
{
    MyClass myObject(300);
    MyClass temp(400);
    myObject = temp; 
}

My programming blahblahblah blog. If you ever find anything useful here, please let me know to remove it.

Re: A teaser

knoxplusplus8-Jun-06 7:32

knoxplusplus

8-Jun-06 7:32

Hi !!!

Can i ask you something? Why do you want to access private members an other way than getters & setters. For what do you use an class if you want that the members are visible for everybody. I thing you should use getters & setters (if you use classes) to modify a member-variables of the class. Don't use friend accessor.

By !!!

-:KNOX:-

Re: A teaser

toxcct10-Jun-06 6:24

toxcct

10-Jun-06 6:24

hi knox,

what you said was justified from your point of view i believe. however, you're still young (in the sense that you still have to learn about others), and shouldn't get angry just because you don't understand the OP point of interrest.

there are other reason we access to private members avoiding getters/setters/friends that you certainly didn't have in mind when answered.

also, don't be so categorical when saying not to use friend accessor. it is very useful in some particuliar case, and Mr. Stroustrup was far from being stupid when he defined this keywork in the C++ language definition...

sincerely,

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

MSHflexgrid and images question

Tarek Jabri5-Jun-06 2:28

Tarek Jabri

5-Jun-06 2:28

Hi everybody
am working on mshflexgrid in mfc, i need to know how can i set sn icon in the row header to indicate that the row is the current one, and how to remove it when moving to another row.

thanks alot
Byeeeeeeeee

Re: MYSQL DATE HELP

ThatsAlok5-Jun-06 2:27

ThatsAlok

5-Jun-06 2:27

gourav456 wrote:
IF I GET DATE FROM CONTROL IN THE FORM OF INT AS
GetDlgItemText(IDC_DATE,sdate);
THEN HOW TO CONVERT sdate INTO STRING SO THAT IT WILLBE CONVERTED INTO MYSQL FORMAT

Isn't you get your answer to your question here :- HERE[^]

Buddy, just check the reply of your previous post before posting it again, if you get flamed, no body reply to your question !

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: MYSQL DATE HELP

Hamid_RT5-Jun-06 2:38

Hamid_RT

5-Jun-06 2:38

Wheres question!?

whitesky

Re: MYSQL DATE HELP

ThatsAlok5-Jun-06 2:40

ThatsAlok

5-Jun-06 2:40

WhiteSky wrote:
Wheres question!

he have deleted that message, but you still can find hhis question in quoted text in my post!

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: MYSQL DATE HELP

Hamid_RT5-Jun-06 3:00

Hamid_RT

5-Jun-06 3:00

I saw two thing delete message and repeat message Smile | :)

whitesky

Re: MYSQL DATE HELP

ThatsAlok5-Jun-06 19:17

ThatsAlok

5-Jun-06 19:17

WhiteSky wrote:
I saw two thing delete message and repeat messag

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
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: MYSQL DATE HELP

yogendra kaushik5-Jun-06 2:51

yogendra kaushik

5-Jun-06 2:51

yar that one does not give specified date which i specify on that control in vc++ and in mysql table it will give current date only
table does not show other date it will give only current date

gourav dogra jfjunf

Re: MYSQL DATE HELP

Hamid_RT5-Jun-06 3:00

Hamid_RT

5-Jun-06 3:00

well of course this fourm is VC but you can GETDATE() for sql that this function return GETDATE date and time
why you need to read from VC and did you see Date functions in sql

whitesky

error in reading file [modified]

Anu_Bala5-Jun-06 2:11

Anu_Bala

5-Jun-06 2:11

Hi,THere is error in file reading....
CTagBase *Temp;
CObList OPointList;
PointCount = atoi(TempString); //PointCount = 2
CString ab;
for(iCount=0;
iCount<pointcount;icount++)
{
memset(ttagname,0,16);
memset(tdesc,0,24);

pfile.read(&ttagtype,1);
switch(ttagtype)
{
case="" controller:
{=""
pfile.read(ttagname,(int)tagnamelength);=""
pfile.read(tdesc,24);=""
temp="new" ctagcontroller="" ((cstring)ttagname,(cstring)="" tdesc);
opointlist.addtail(temp);
break;
}
case="" indicator:
{=""
pfile.read(ttagname,(int)tagnamelength);
pfile.read(tdesc,24);="" ctagindicator((cstring)="" ttagname,(cstring)="" tdesc);
opointlist.addtail(temp);
break;
}

in="" this="" case,according="" to="" ttagtype="" the="" switch="" case="" is="" selected.in="" my="" coding="" i="" have="" read="" 2="" controller="" elements.so="" file="" reads="" first="" elemnt="" and="" goes="" switch..and="" execute="" balnce="" code.then="" icount="" get="" incremented="" second="" iteration="" done="" .but="" time="" does="" not="" anything..
i.e.,="" in="" iteration-="">tTagName is LIC101
In second Iteration->tTagName is "" i.e null.
How its coming like this? One morething i checked the file contents,its absolutely correct.
THen this code fail to read full content.i.e its read only the first element.Does not read the forthcoming elemnts.

-- modified at 8:28 Monday 5th June, 2006

In this the For loop is not displaying correctly..
for(iCount=0;iCount

Re: error in reading file [modified]

NiceNaidu5-Jun-06 2:21

NiceNaidu

5-Jun-06 2:21

Anu_Bala wrote:
PFile.Read(tTagName,(int)TagNameLength);

Debuf the program, keeping a breakpoint at the above line and Check whether TagNameLength is a valid .

Appu..
"If you judge people, you have no time to love them."

Edit Box

chethu6655-Jun-06 2:02

chethu665

5-Jun-06 2:02

hi all,

is it possible to get the cursor position in the edit box like the cursor is after 3 chars from the start or 5 chars from the start like that .

"Men never do evil so completely and cheerfully as when they do it from religious conviction"
-Pascal

Re: Edit Box

ThatsAlok5-Jun-06 2:26

ThatsAlok

5-Jun-06 2:26

chethu665 wrote:
s it possible to get the cursor position in the edit box like the cursor is after 3 chars from the start or 5 chars from the start like that .

Use GetCurPos and CEdit::CharFromPos at tandum!

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

Re: Edit Box

NiceNaidu5-Jun-06 2:27

NiceNaidu

5-Jun-06 2:27

Check this article.It has some info related to getting cursor position.

http://www.codeproject.com/editctrl/editctrltutorial.asp[^]

Appu..
"If you judge people, you have no time to love them."

Re: Edit Box [modified]

_AnsHUMAN_ 5-Jun-06 2:29

_AnsHUMAN_

5-Jun-06 2:29

C++

p=m_edit.GetCaretPos ();
int t=m_edit.CharFromPos (p);
//t has the value that you need
/*CString s;
s.Format("%d",t);
AfxMessageBox(s);*/

******m_edit is the edit box control and p is a POINT type variable
Uncomment the above 3 lines that are commented to print the value in the message box.
Does this help you?

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

_AnShUmAn_

-- modified at 8:31 Monday 5th June, 2006

Re: Edit Box [modified]

chethu6655-Jun-06 3:19

chethu665

5-Jun-06 3:19

thanks a lot man !

i worked . Smile | :)

"Men never do evil so completely and cheerfully as when they do it from religious conviction"
-Pascal

Re: Edit Box

NiceNaidu5-Jun-06 2:32

NiceNaidu

5-Jun-06 2:32

Hey,
Check the MSDN Documentation related to GetSel and EM_GETSEL

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/editcontrols/editcontrolreference/editcontrolmessages/em_getsel.asp[^]

Appu..
"If you judge people, you have no time to love them."

Re: Edit Box

ThatsAlok5-Jun-06 19:12

ThatsAlok

5-Jun-06 19:12

NiceNaidu wrote:
GetSel and EM_GETSEL

Sorry to trouble you,This Will Retrive the Selected Text not actual Caret Position

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

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You

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