C / C++ / MFC Discussion Boards

Christian Graus3-Nov-02 21:08

3-Nov-02 21:08

Dammit - just do what I told you to, and it will work. I've written hundreds of lines of classic ASP, calling COM objects that I wrote to do the business logic. Once you call CreateObject, your variable will be an instance of your COM object, and will have (roughly) the same methods as if you called it from C++. I say roughly, it's actually better - a paramter is set and got as if it was a member variable, without the get_ syntax.

The MSDN is full of examples - start by looking up 'CreateObject'.

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Re: ATL COM + ASP

Christian Graus3-Nov-02 21:06

Christian Graus

3-Nov-02 21:06

This is VBScript syntax, within an ASP or otherwise.

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Re: ATL COM + ASP

devvvy3-Nov-02 22:07

devvvy

3-Nov-02 22:07

thanks, just got my ATL-COM-STA local inprocess server runnning and i'm able to consume the service from VC and VB clients.

will try ASP now. havent readup enuf to be sure if an inprocess will be good for our application. i'm still not sure what'd be the threading requirement. just know it will definitely not be DCOM for now.

the application is to generate SQL JOIN logic based on input gathered from an ASP front-end. so, think that many threads will try to access the server at the same time, i think this implies MTA. but i am happy that i can at least get the COM server running and be able to consume the service from ASP for now.

thanks again.

norm

Re: ATL COM + ASP

Michael P Butler3-Nov-02 23:00

Michael P Butler

3-Nov-02 23:00

I've always used this site http://www.learnasp.com/classic/[^] for my ASP problems - pretty much covers everything you'll need.

but like Christian says Server.CreateObject is what you need.

Michael

Life’s not a song.
Life isn’t bliss.
Life is just this.
It’s living. -- Buffy the Vampire Slayer: Once more, with feeling

table schema

devvvy3-Nov-02 17:52

devvvy

3-Nov-02 17:52

I need to retrieve table schema given a table data.

schema information - for a given table - should include:
1. list of columns
2. data type of each column
3. number of records in a table
4. total number of columns

can anyone tell me the API to use for ODBD and ADO to get me up to speed?

Thanks!

norm

Re: table schema

Mazdak3-Nov-02 19:37

Mazdak

3-Nov-02 19:37

When you use ADO API's to work with database,after you query from that table and fill RecordSet object you can use these methods and properties:

norm wrote:
4. total number of columns

Count property of Fields object.

norm wrote:
1. list of columns

fieldsobject->GetItem(index)->GetName() will return name of EACH column.

norm wrote:
2. data type of each column

fieldsoblect->GetItem(index)->GetType() will do that.

norm wrote:
3. number of records in a table

RecordCount will return number of rows.

Mazy

"And the carpet needs a haircut, and the spotlight looks like a prison break
And the telephone's out of cigarettes, and the balcony is on the make
And the piano has been drinking, the piano has been drinking...not me...not me-Tom Waits

Re: table schema

devvvy3-Nov-02 19:49

devvvy

3-Nov-02 19:49

thanks, that's very helpful of u

norm

How to implement printf(char *msg, ...)?

Anonymous3-Nov-02 17:43

Anonymous

3-Nov-02 17:43

How to process the ... in brackets?;P

Re: How to implement printf(char *msg, ...)?

Christian Graus3-Nov-02 18:28

Christian Graus

3-Nov-02 18:28

How do you mean - that IS how printf is written, isn't it ? CString::Format also works that way, and the source is on your hard drive if you have VC.

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Re: How to implement printf(char *msg, ...)?

C^hris L^osinger3-Nov-02 18:53

C^hris L^osinger

3-Nov-02 18:53

try searching google for va_start, va_arg and va_end.

-c

“losinger is a colorizing text edit control”
-- googlism

Smaller Animals Software

Re: How to implement printf(char *msg, ...)?

Paul M Watt3-Nov-02 19:44

Paul M Watt

3-Nov-02 19:44

You can use va_arg, va_end, va_start in order to access the arguements that are stored in the ... operator. However, if you are working with C++ and you plan on creating a function that supports a feature like this, it is a lot safer to use iostreams to accomplish this. This will insure that your arguements remain type-safe, which is a major advantage over the C-style implementation.

Good Luck

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

How to manage DDE...

kanat3-Nov-02 17:05

kanat

3-Nov-02 17:05

char Eofl[]= "\\EndofLine";
char Tab1[] = "\t";
char szItem5[] = "[Underline]";

DDEPoke(idInst, hConv, EndofDoc, szData3);
DDEPoke(idInst, hConv, EndofDoc, Tab1);
DDEPoke(idInst, hConv, Eofl, Tab1);

LPTSTR lpsz = new TCHAR[m_Surname.GetLength()+1];
_tcscpy(lpsz, m_Surname);
DDEPoke(idInst, hConv, EndofDoc, lpsz);

this code is a part of a program which sends data to MS Word using DDE. I manage to find the EndofDoc, Tab,
but cannot find the EndofLine.
if I call the EndofLine it does not send the data to Word.

gina dll?

imran_rafique3-Nov-02 16:21

imran_rafique

3-Nov-02 16:21

i want to creat my own gina dll in order to disable ctrl+alt+del.can any body tell how to creat a gina dll that do nothing when i press ctrl+alt+del and perform all other operation that are performed by the msgina.dll
and how to rplace it with previous dll?

r00d0034@yahoo.com

Re: gina dll?

Christian Graus3-Nov-02 16:37

Christian Graus

3-Nov-02 16:37

Am I the only one who sees two letters prior to gina.dll every time this question is asked ?

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Re: gina dll?

C^hris L^osinger3-Nov-02 18:57

C^hris L^osinger

3-Nov-02 18:57

Christian Graus wrote:
Am I the only one who sees two letters prior to gina.dll every time this question is asked ?

nope.

Here's a picture!!![^]

“losinger is a colorizing text edit control”
-- googlism

Smaller Animals Software

Re: gina dll?

Paul M Watt3-Nov-02 19:46

Paul M Watt

3-Nov-02 19:46

Chris Losinger wrote:
Here's a picture!!!

Exactly what I was thinking of as well Smile | :)

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Re: gina dll?

ian mariano3-Nov-02 16:37

ian mariano

3-Nov-02 16:37

Winlogon and GINA[^]

MSDN: "Winlogon has special hooks into the User32 server that allow it to monitor CTRL+ALT+DEL secure attention sequence (SAS) events. Winlogon makes this SAS event information available to GINAs to use as their SAS, or as part of their SAS. In general, GINAs should monitor SASs on their own; however, any GINA that has the standard CTRL+ALT+DEL SAS as one of the SASs it recognizes should use the Winlogon support provided for this purpose." AND "When Winlogon encounters an SAS event or when an SAS is delivered to Winlogon by the GINA, Winlogon sets the state accordingly, changes to the Winlogon desktop, and calls one of the GINA's SAS processing functions."

This may be of interest to you:
WlxLoggedOutSAS[^]..."The WlxLoggedOutSAS function must be implemented by a replacement GINA DLL. Winlogon calls this function when it receives a secure attention sequence (SAS) event while no user is logged on."

"The greatest danger to humanity is humanity without an open mind."
- Ian Mariano - http://www.ian-space.com/

How can I change the ip configuration of the local host using vc?

indian33-Nov-02 15:30

indian3

3-Nov-02 15:30

Re: How can I change the ip configuration of the local host using vc?

imran_rafique3-Nov-02 15:59

imran_rafique

3-Nov-02 15:59

is your computer is on the network?

r00d0034@yahoo.com

Re: How can I change the ip configuration of the local host using vc?

ian mariano3-Nov-02 23:42

ian mariano

3-Nov-02 23:42

First you'd AddIPAddress()[^], then delete the old one (DeleteIPAddress[^]). Or, the other way around, if you so desire.

"The greatest danger to humanity is humanity without an open mind."
- Ian Mariano - http://www.ian-space.com/

Thread in DLL

stevenson3-Nov-02 15:04

stevenson

3-Nov-02 15:04

Hi,

Can I start a thread in a function and keep it runnig even if app runs out of the function space?

Thanks in advance.

Extreme programming. Do the No.1

Re: Thread in DLL

Le centriste3-Nov-02 16:43

Le centriste

3-Nov-02 16:43

Do you mean when the function exits? sure.

Michel

It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to.

- TreeBeard

Re: Thread in DLL

stevenson3-Nov-02 19:06

stevenson

3-Nov-02 19:06

Then how to start a thread and it can keep alive even after the function which started the thread return?

Extreme programming. Do the No.1

Re: Thread in DLL

Paul M Watt3-Nov-02 19:49

Paul M Watt

3-Nov-02 19:49

stevenson wrote:
Can I start a thread in a function and keep it runnig even if app runs out of the function space?

Yes,

use _beginthreadex or CreateThread depending on what you are doing.

_beginthreadex will initialize the C-runtime library on the new thread that you create.
CreateThread is the Win32 version and you will need to initialize the C-runtime yourself for this thread if you plan on using it.

Good Luck

Build a man a fire, and he will be warm for a day
Light a man on fire, and he will be warm for the rest of his life!

Pointers, casting and volatile

Jay23-Nov-02 13:55

Jay2

3-Nov-02 13:55

Hello I'd like to declare a char* that points to a void* but i dont know the best way to do this, I thought i could use type casting but it appears not.
I'm trying to use strcmp to compare 2 char* pointing to buffers the code is this...

void * __cdecl buffer= malloc(100);<br />
void * __cdecl buffer2 = malloc (100);<br />
__int64 filel1 =_filelengthi64( firstfiledone);<br />
__int64 filel2 =_filelengthi64( firstfiledtwo);<br />
if (filel1!=filel2)<br />
        return 1;<br />
char* b,b2;<br />
int trys1=filel1/100,count;<br />
for (count=0;count<filel1;count=count+trys1)<br />
	{<br />
	fread( buffer, 1, 100, s1 );<br />
	fread( buffer2, 1, 100, s2 );<br />
	b= (char*) static_cast <char*> (void * __cdecl) buffer;<br />
	b2= (char*) static_cast <char*> (void * __cdecl) buffer2;<br />
	if ((strcmp (b,b2))==0)<br />
		{<br />
		printf ("ok");<br />
		}<br />
        }

But that way doesnt work so is there any way of easily doing this?
Also what is a volatile pointer. As i've previously copied a supposedly volatile pointer bit by bit, then re-used it later with no bad effects, is this method sloppy code?

Thanks hope you can help ! - Jason Poke tongue | ;-P

ps tried to get rid of them errors in the code with the boolean expression things dont know if it worked

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