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I've worked real hard to get the MFC dependancies out of my project so I don't want to link to it just for dialog support. Why have I removed MFC? It's a long story...
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Suppose I want to Exit on pressing Esc button from the middle of the execution ...Like we do in VB....
Please Suggest....
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Hi
Where can I find a MFC Tree Control to display XML file with some functionalities like add node, delete node, change value ...
Thanks
Yannick
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I've mapped a variable of type double to an edit box (within a dialog box) in Visual C++ and I want to control the entered value so that it stays fixed(0.001) rather than scientific(1e-003). Is there a way of achieving this?
Cheers.
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With DDX_Text mapping, you're probably without any chance. What about going into 'manual' mode and using [Get|Set]DlgItemText?
Tomasz Sowinski -- http://www.shooltz.com
What is "scratch" and why can everything be made from it?
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Sorry, I'm pretty new to Visual C++. What do you mean by going into 'manual mode'?
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When you're using ClassWizard for dialog data exchange (ddx), it generates the sequence of calls to DDX_xxx in DoDataExchange. One of these calls corresponds to your double value. If this number is shown with exponent, your only choice is to fix it by setting edit control text 'manually', with a call to SetDlgItemText. This would look more or less like this:
void CYourDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Text(pDX, IDC_EDIT1, m_value);
if (!pDX->m_bSaveAndValidate)
{
CString strx;
strx.Format("%f", m_value);
SetDlgItemText(IDC_EDIT1, strx);
}
}
You can format your value any way you want before call to SetDlgItemText.
Tomasz Sowinski -- http://www.shooltz.com
What is "scratch" and why can everything be made from it?
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Thanks for your help, ol' buddy.
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When I made any editing changes to my ado project, randonly it bombs with the foll.errors. There is no going back with "undo". Then I have to make a brand new project, but that gets "corrupted" as well in a matter of a few edits. Has any one seen this? I could just be adding a messagebox!!
Thanks,
ns
--------------------Configuration: sqlcarlo - Win32 Debug--------------------
Compiling resources...
Compiling...
sqlcarloView.cpp
c:\program files\microsoft visual studio\vc98\include\crtdbg.h(536) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\include\crtdbg.h(536) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(674) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(675) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(683) : error C2238: unexpected token(s) preceding ';'
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(1631) : error C2833: 'operator DEBUG_NEW' is not a recognized operator or type
c:\program files\microsoft visual studio\vc98\mfc\include\afx.h(1631) : error C2059: syntax error : 'newline'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(122) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2802: static member 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(123) : error C2333: 'new' : error in function declaration; skipping function body
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : error C2802: static member 'operator new' has no formal parameters
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2059: syntax error : 'string'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2091: function returns function
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(135) : error C2556: 'void *(__cdecl *__stdcall CNoTrackObject::operator new(void))(unsigned int,const char *,int)' : overloaded function differs only by return type from 'void *(__c
decl *__stdcall CNoTrackObject::operator new(void))(unsigned int)'
c:\program files\microsoft visual studio\vc98\mfc\include\afxtls_.h(131) : see declaration of 'new'
c:\program files\microsoft visual studio\vc98\include\comutil.h(219) : fatal error C1903: unable to recover from previous error(s); stopping compilation
sqlcarlo.cpp
Error executing cl.exe.
sqlcarlo.exe - 24 error(s), 0 warning(s)
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I get this periodically with some of my projects. It seems to be a bug in the VC compiler where it somehow gets upset with the input stream. Usually I can get past it by doing a rebuild all.
Roger Allen
Sonork 100.10016
If I had a quote, it would be a very good one.
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I had been exploring this class merrily when these errors starting happening. So I abandoned my strategy and started doing ADO from scratch. Now that REbuild All has dealt with the problem, I am almost afraid of trusting it, because if it doesnt go away next time with Rebuild All, I'll have to take up raw ADO and I have just enough time to go the one way - the class or raw ADO. Do you think rebuild all is trustworthy?
Thanks,
ns
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Hey,
I've just started trying to program with mySQL (first time programming for a database) and I'm encountering some problems. I'm using Visual C++ v6 and mySQL++ v1.7.1 and when I try to compile any program the compiler is coming up with hundreds of errors all of which reside in the mySQL++ source files. I find it hard to believe that there are actually errors in the source files and I can't seem to relsove this problem, if anyone had any ideas or solutions it would be much appreciated.
Thanks in advance.
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 How can I access a database (in access2000) over internet connection.
I want to have an app that would upload a picture with a description to that database remotely.
Thanks
_ra
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Hello, the codegurus around the world.;)
You can use Socket program or ASP.
1) Socket case.
Create your own client and server by WinSock or CAsyncSocket class.
Add the code with the database in Server side application.
Server can access the database.
2) ASP case.
Write some simple ASP code to Access database in your local web server or
remote web server.
Write the client application with WinSock, CAsynSocket, or WinInet
to post HTTP command.
(WinInet is the easiet way.)
Last, I actually did these.
Please, don't send me your email about your questions directly.
Have a nice day!
Sonork - 100.10571:vcdeveloper 
-Masaaki Onishi-
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"2) ASP case.
Write some simple ASP code to Access database in your local web server or
remote web server.
Write the client application with WinSock, CAsynSocket, or WinInet
to post HTTP command.
(WinInet is the easiet way.)"
ok, so asp will have an access to database...but it cann't upload pictures with descriptions.
and what will the client app do?
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Does anyone happen to have an equation to calculate the distance between two lat and long points? My calculation is apparently wrong and with all the sines and cosines and the fact I've been up all night I'm a little confused. That and I specialize in databases and not geography. Also, are latitudes in the NW hemisphere supposed to be positive?
"I was bored last week and a thought occured to me: Why is it that there is a government bureau which oversees alcohol, tobacco, and firearms? I was bored enough to call up the regional office of said bureau... I asked the man who answered the phone "What wine goes best with an M-16?" He did his best to be helpful, "That depends. What are you smoking?"
-Dennis Leary
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NAUTICAL_MILES CNavUtils::FindDistance(
LAT_DEGREES FROM_LATITUDE,
LON_DEGREES FROM_LONGITUDE,
LAT_DEGREES TO_LATITUDE,
LON_DEGREES TO_LONGITUDE)
{
double DELTA_NORTH;
double DELTA_EAST;
double DELTA_LON;
NAUTICAL_MILES RETURN_VALUE;
DELTA_NORTH = TO_LATITUDE - FROM_LATITUDE;
DELTA_LON = TO_LONGITUDE - FROM_LONGITUDE;
if (DELTA_LON > 180.0)
DELTA_LON -= 360.0;
else if (DELTA_LON < -180.0)
DELTA_LON += 360.0;
DELTA_EAST = DELTA_LON *
cos( ((FROM_LATITUDE + TO_LATITUDE) / 2.0) * DEG_TO_RAD );
RETURN_VALUE = (float)(DEG2MIN * (sqrt(pow(DELTA_NORTH,2) + pow(DELTA_EAST,2))));
return (RETURN_VALUE);
}
NORTH and EAST are positive. SOUTH and WEST negative.
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Thanks for the quick response 
"I was bored last week and a thought occured to me: Why is it that there is a government bureau which oversees alcohol, tobacco, and firearms? I was bored enough to call up the regional office of said bureau... I asked the man who answered the phone "What wine goes best with an M-16?" He did his best to be helpful, "That depends. What are you smoking?"
-Dennis Leary
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Hi there,
I have a strange problem in my program about releasing allocated DC memory !!!
struct Container
{
CBitmap* bmp_ShapeMask;
CBitmap* bmp_DegreeMask;
CDC* dc_Shape;
CDC* dc_Degree;
.
.
.
Container()
{
bmp_ShapeMask = new CBitmap;
bmp_DegreeMask = new CBitmap;
dc_Shape = new CDC;
dc_Degree = new CDC;
}
};
ok, then i loaded images and also i allocated memory for dc_Shape and dc_Degree:
m_Con.dc_Shape->CreateCompatibleDC(.........);
m_Con.dc_Degree->CreateCompatibleDC(.........);
m_Con.bmp_ShapeMask.LoadBitmap(......);
m_Con.bmp_DegreeMask.LoadBitmap(......);
and in one of my program part, i want to release all of the allocated memories ...
i wrote:
m_Con.dc_Shape->DeleteDC();
m_Con.dc_Degree->DeleteDC();
m_Con.bmp_ShapeMask.DeleteObject();
m_Con.bmp_DegreeMask.DeleteObject();
delete m_Con.dc_Shape;
delete m_Con.dc_Degree;
delete m_Con.bmp_ShapeMask;
delete m_Con.bmp_DegreeMask;
But when i got report from system memory, i saw that my program doesn't release the memory
What's the problem ???????
Please help me !!!!!
My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html
Hadi Rezaie
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You may be leaking other resources like when you do a SelectObject on the dc you must re-select the old object when you are finished.
CBitmap *pOldBitmap = dc.SelectObject(m_Con.bmp_ShapeMask);
dc.SelectObject(pOldBitmap);
Jason Henderson
quasi-homepage
articles
"Like it or not, I'm right!"
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He deletes DC's before bitmaps, so bitmaps are released. Besides, he gets the leak reports from C runtime, not from GDI. CBitmap can be deleted from heap even if underlying GDI object is selected in some device context.
Tomasz Sowinski -- http://www.shooltz.com
What is "scratch" and why can everything be made from it?
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Hello Tomasz,
What do you think about my problem ???
What's your advice for me for finding the problem ?
Regards,
My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html
Hadi Rezaie
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Hi !
I am a OOP-newbie and I have programmed a console-app which shows a "o" moving through the console and if hitting a site getting reflected...
Here is the NON-OOP code which works:
#include <iostream.h>
#include <conio.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
void func_clear()
{
system("cls");
}
void main(void)
{
int r;
int x;
int y;
int xc= 80;
int yc= 25;
int zaehler;
cout <<"Mit der LEERTASTE koennen Sie die Garfikausgabe beenden.\n\n";
cout << "Bitte geben Sie eine Richtung an (1-4): ";
cin >> r;
cout << "\nBitte geben Sie eine x-Koordinate an (1-80): ";
cin >> x;
cout << "\nBitte geben sie eine y-Koordinate an (1-25): ";
cin >> y;
for (int t=1 ;t<10000; t++)
{
switch (r)
{
case 1:
if (x==1 && y==1)
{
r=4;
break;
}
if (x>1)
{
x--;
}
else
{
r=2;
}
if (y>1)
{
y--;
}
else
{
r=3;
}
break;
case 2:
if (x==xc && y==1)
{
r=3;
break;
}
if (x<xc)
{
x++;
}
else
{
r=1;
}
if (y>1)
{
y--;
}
else
{
r=4;
}
break;
case 3:
if (x==1 && y==yc)
{
r=2;
break;
}
if (x>1)
{
x--;
}
else
{
r=4;
}
if (y<yc)
{
y++;
}
else
{
r=1;
}
break;
case 4:
if (x==xc && y==yc)
{
r=1;
break;
}
if (x<xc)
{
x++;
}
else
{
r=3;
}
if (y<yc)
{
y++;
}
else
{
r=2;
}
break;
}
func_clear();
for (int iy=1; iy<y; iy++)
{
cout<<"\n"<<flush;
}
for (int ix=1; ix<x; ix++)
{
cout<<" "<<flush;
}
cout<<"0"<<flush;
zaehler = 0;
while ( zaehler < 10000000 )
{
zaehler = zaehler +1;
}
}
}
___________________________________________________
Here is the OOP code which doesn´t work:
#include <iostream.h>
#include <conio.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
class bewegung
{
private:
public:
int r;
int x;
int y;
int xc;
int yc;
bewegung (){int xc=25;int yc=80;}
~bewegung () {};
void richtung (int x,int y,int r)
{
switch (r)
{
case 1:
if (x==1 && y==1)
{
r=4;
break;
}
if (x>1)
{
x--;
}
else
{
r=2;
}
if (y>1)
{
y--;
}
else
{
r=3;
}
break;
case 2:
if (x==xc && y==1)
{
r=3;
break;
}
if (x<xc)
{
x++;
}
else
{
r=1;
}
if (y>1)
{
y--;
}
else
{
r=4;
}
break;
case 3:
if (x==1 && y==yc)
{
r=2;
break;
}
if (x>1)
{
x--;
}
else
{
r=4;
}
if (y<yc)
{
y++;
}
else
{
r=1;
}
break;
case 4:
if (x==xc && y==yc)
{
r=1;
break;
}
if (x<xc)
{
x++;
}
else
{
r=3;
}
if (y<yc)
{
y++;
}
else
{
r=2;
}
break;
}
}
};
class ausgabe
{
private:
int i;
public:
ausgabe(){int iy=0;int ix=0;}
~ausgabe() {};
void bildschirm(int ax,int ay)
{
system("cls");
for (int iy=1; iy<ay; iy++)
{
cout<<"\n"<<flush;
}
for (int ix=1; ix<ax; ix++)
{
cout<<" "<<flush;
}
cout<<"0"<<flush;
}
};
void main(void)
{
int r;
int x;
int y;
int zaehler;
cout <<"Mit der LEERTASTE koennen Sie die Garfikausgabe beenden.\n\n";
cout << "Bitte geben Sie eine Richtung an: ";
cin >> r;
cout << "\nBitte geben Sie eine x-Koordinate an: ";
cin >> x;
cout << "\nBitte geben sie eine y-Koordinate an: ";
cin >> y;
for (int t=1 ;t<10000; t++)
{
bewegung b1;
b1.richtung(x,y,r);
ausgabe a1;
a1.bildschirm(x,y);
zaehler = 0;
while ( zaehler < 10000000 )
{
zaehler = zaehler +1;
}
}
}
______________________________________________
Please help me ! I am sitting in front of the code for 5 hours now and I don´t know a answer... I am getting insane ...
Thanx very much !!!
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