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Hi i am adding to the ms -access database through the MFC code
CRecordset. Prior to adding the record last designID was 74
<br />
CRSDesign dRS(pdb);<br />
<br />
if(!dRS.Open ())<br />
return FALSE;<br />
if (!dRS.CanAppend ())<br />
return FALSE;<br />
<br />
dRS.AddNew();<br />
dRS.m_DesignName = DesignName;<br />
dRS.m_DesignType = DesignType;<br />
dRS.m_Remarks = Comments;<br />
dRS.m_D_Designer = Designer;<br />
dRS.Update();<br />
<br />
dRS.Requery ();<br />
dRS.MoveLast ();<br />
long DesignID = dRS.m_DesignID ;<br />
AfxMessageBox(_ltoa(DesignID,cc,10)); ---> 74<br />
Message box also gives design id as 74. How to overcome this.?
Well
Select @@IDENTITY as num FROM B_DESIGN
query with MS- Access Database does returns just
0
0
0
0
0 For the number of record i am having in my table
Main Problem
DesignID is autonumber field in my data base and is primary key
It is having following values:
12
15
23
70
71
73
74
112
Now when i am running following query into data base (MS-Access query)
SELECT Last(DesignID) FROM B_Design
it returns 74
Even i put a loop after requery and getting designID in message box it starts from 112,5,12,15 .......
When i move recordset to MoveFirst() it will give designID - 112
and when MoveLast() then it will give 74
Have any body idea about this?
How to resolve this problem?
If any more clarification is required please ask for that?
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How about using
SELECT Max(DesignID) FROM B_Design
instead?
A rich person is not the one who has the most, but the one that needs the least.
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Hi,
For memory stats we have overloaded the operator new in such a way that it allows us to allocate memory and store information about which module is doing it. This is all great.
However, now that we have moved to a multi-threaded environment, do we need to protect the call _malloc_dbg(...) (in a debug build) and the ::operator new(...) (in non-debug) with a critical section?
"Programming today is a race between software engineers striving to build bigger and
better idiot-proff programs, and the Universe trying to produce bigger and better idiots.
So far the Universe is winning." -- Rich Cook
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in dos one could access hardware directly because dos's singe-threaded. multi-threaded oses like windows have to take care themselves that hardware pieces are accessed by just one program at a time.
this means for you that not you're allocating memory, but the os's doing it for you; you don't need any multithreading resource-locking techniques at all.
Я люблю русский язикь!
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Multithreaded operating systems do not protect your from accessing hardware at the same time. Two threads can access the same page of memory and cause all sorts of mess if locking isn't used to manage the data in the page.
Tim Smith
I'm going to patent thought. I have yet to see any prior art.
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When you build with the MT (multithreaded) CRTL (c run time library), you will be getting the multithreaded version of new and delete which have built in locking support. You don't have to worry about it.
Tim Smith
I'm going to patent thought. I have yet to see any prior art.
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My program makes a file with some data, how can I export this data into a graphic, like an excel graphic. I'm not using MFC, but winapi 32.
sorry my english
Christian
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Hi All!
How can i programmtically retereive all users login/logout time from the domain server? I have gone through the Derek Lakin's artical "How to get a list of users from a server" but it hangs when i use the domain name (works for local machine). Are there any set of APIs for this?
Best Regards,
Bilal Anjum
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--------------------------------------------------------------------------
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JUNIORS,CLASSMATES,SENIORS AND ALL THE GROUP YOU ARE MEBER OF
(to Support C/C++ ),IT WONT TAKE YOUR MUCH OF YOUR TIME BUT
WILL HELP US A LOT.
THANKING YOU IN ANTICIPATION
------------------------------------------------------------------------
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(gcc,turbo,borland ,visual,quick ...)
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together at one place, PROGRAMMERS TOWN
if you know/love C/C++ programming
you should join us.
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RELATION WITH C/C++. YOU CAN HELP US BY
FORWARDING THIS INVITATION TO EVERY
PROGRAMMER YOU KNOW,
ALL YOUR FREINDS, ALL YOUR COLLEAGUES,
ALL JUNIOS,CLASSMATES, SENIORS .TELL THEM
TO FORWARD IT TO THEIR FREINDS AND LET THIS
TRADITION GO ON. AFTER SOME TIME THIS CHAIN
WILL SURELY REACH TO A C/C++ PROGRAMMER,
THAT IS WHAT WE WANT.
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you can keep yourself update by joining this
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method 3: open this URL (If you are not in
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and click on join button .
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as we are around 700 members in this group,
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so its better if u subscribe using daily
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which will contain all the mails of the day
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How to use dialy Digest Option that you will come
To know after joining this group.
Programmers-Town Team
http://groups.yahoo.com/group/Programmers-Town/
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Anonymous wrote:
as we are around 700 members in this group,
its very high traffic every day 8-10 mails.
OMG! How do your servers cope?!  
Lets be honest, isn't it amazing how many truly stupid people you meet during the course of the day. Carry around a pad and pencil, you'll have twenty or thirty names by the end of the day - George Carlin
Awasu 1.2.1 [^]: A free RSS reader with support for Code Project.
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Thanks but no thanks 
CodeProject is a million times better 
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hello everybody,
i like to develop a parser which should parse the user given inputs..
exampl,
----------------------------
# code
ln 123,232,23,223;
mycircle 233,343,12;
Textout "text",23,23,"2";
# end
when i run the program, the user pinputted codes should be mapped with the vc+++ Line,Circle,Textout routines with app.parameters provided by the user.
suggest me an idea to solve this..
with regards,
Mahes
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take a look and read further:
http://www.antlr.org/
¡El diablo está en mis pantalones! ¡Mire, mire!
Real Mentats use only 100% pure, unfooled around with Sapho Juice(tm)!
SELECT * FROM User WHERE Clue > 0
0 rows returned
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Hello everyone,
I've got quite some problems with programming a Context Menu Handler in
Visual C++ (6.0, SP5) under Windows 2000.
I am German and an apprentice, which means I am spending half the time in school and half the time in the company that hired me as an apprentice.
I am studying to become an application developer.
Until now, I only wrote basic C and some more advanced Java Code. A few
days ago, I received a new project:
I should create a context menu entry (submenu with 2 or more menu items). Selecting one of these entries should start the corresponding application.
I read several "Context Menu"-Pages until I found out that, in order to have a sub-menu, I would have to write a COM-DLL, a "context menu handler".
Reading on that topic in the MSDN did not help me much, as I have not programmed (in the?!) COM yet.
I then stumbled upon Michael Dunns "The Complete Idiot's Guide To Writing Shell Extensions" and downloaded his example projects.
Well, it did not work. The example projects were compiled (0 errors, 0 warnings), registered (regsvr32 dllname -> Registration Successful) and written into the registry (shellex->ContextMenuHandlers), mostly as scripted in the RGS-File of the project.
I tried several of the example projects, none worked. The context menu - even though the handler is registered for the filetype - does not change or give the desired new options.
I am a local administrator, but I even wrote the GUIDs to the APPROVED section as described in M. Dunn's first chapter. Well, they still dont work, and I am pretty much *censored* since I can not get it to work.
I do have absolutely no idea what causes the failure, I did not change any of the example projects.
Can someone please help me?
Greetings from Germany
Sebastian
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I create a mfc mdi app without doc/view.I meet a question.
I declare a int point member in cchildframe.
when I new(int) it in CChildFrame::OnCreate() or in Constructor,it does well.I free it in destructor like this
{
if(p)
{
delete p;
TRACE(_T("delete p\n"))
}
}
but if I new it in CChildFrame::PreCreateWindow(),it reports
detected memory leaks,instead I observer the trace message,I think I have delete it,but why error yet generated.I hope somebody can explain it to me.thanks
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Memory leak means that there are non-freed memory after the app has ended. I think that the only reason is, that the framework calls PreCreateWindow more than once. Anyway, the PreCreateWindow is designed mainly to set the window class and you shouldn't initialize anything there 
Robert-Antonio
"I launched Norton Commander and saw, drive C: on the left, drive C: on the right...Damn, why I need two drives C:???So I formatted one..."
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I am very new in visual C++ some body can tell me how I can change the font size. For me I just want are simple change the font size like click button 1 and then come out the word on editbox is Times New Roman and size is 16.
Thank you.
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hi all...
I have question...
How can i have a multi column list box in a dialog ???
Any help is appreciated
thanks
saleem
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Read up on LBS_USETABSTOPS and LB_SETTABSTOPS.
--
Dad, how strange it is that the pig can speak.
*thoughtful pause* It must have lost its "oink".
(my 3-year old daughter Moa, while watching Babe)
Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so. (Douglas Adams)
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do this :
sockaddr_in ReceiverAddr;
ReceiverAddr.sin_addr.s_addr = ADDR_ANY;
TOXCCT alias Nicolas C.
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Okay....let's say I want to give the recipient IP address as "172.20.144.50". How do I include this statement in the program?
The program is as follows:
#include <winsock2.h>
#include <stdio.h>
void main(int argc, char **argv)
{
WSADATA wsaData;
SOCKET SendingSocket;
SOCKADDR_IN ReceiverAddr;
int Port = 5150;
int Ret;
if (argc <= 1)
{
printf("USAGE: udpsender <receiver ip="" address="">.\n");
return;
}
// Initialize Winsock version 2.2
if ((Ret = WSAStartup(MAKEWORD(2,2), &wsaData)) != 0)
{
// NOTE: Since Winsock failed to load we cannot use WSAGetLastError
// to determine the error code as is normally done when a Winsock
// API fails. We have to report the return status of the function.
printf("ERROR: WSAStartup failed with error %d\n", Ret);
return;
}
// Create a new socket to receive datagrams on.
if ((SendingSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP))
== INVALID_SOCKET)
{
printf("ERROR: socket failed with error %d\n", WSAGetLastError());
WSACleanup();
return;
}
// Setup a SOCKADDR_IN structure that will identify who we
// will send datagrams to. For demonstration purposes, let's
// assume our receiver's IP address is 136.149.3.29 and waits
// for datagrams on port 5150. Obviously you will want to prompt
// the user for an IP address and port number and fill these
// fields in with the data from the user.
ReceiverAddr.sin_family = AF_INET;
ReceiverAddr.sin_port = htons(Port);
ReceiverAddr.sin_addr.s_addr = inet_addr(argv[1]);
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you said it... if the address is given through the command line, that's this :
ReceiverAddr.sin_addr.s_addr = inet_addr(argv[1]);
assuming the IP is a correct adress...
TOXCCT alias Nicolas C.
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I want to tell the program the receipient IP address....if not the program will not work.....it will execute till the printf statement " USAGE: udpsender <receiver ip="" address="">."
I have yet to modify the program with the IP address I want it to be.....
The rest of the statement won't be executed....
Also I need to put in the receipient IP address 172.20.145.45 so that I can transfer data from one PC to the other PC.....
I cannot just assume the IP is correct....
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Actually i am developing a class in which it will take any com object and will be able to set and get the properties. Now i have taken the clsid of the component. Now how can i get its properties as GetIdsofNames function of IDispatch takes names. Please Guide me briefly with a little example or tell me some article
Thanx in advance
Regards
minamkhan
Inam
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