C / C++ / MFC Discussion Boards

Re: Radio Box

26-Nov-01 6:39

If you mean radio buttons, then have them on a group box.

Re: Radio Box

26-Nov-01 7:32

It seems if you place your group boxes with radio buttons in another group box, you can check only one button at a time effectively checking one group at a time. It needs a SetCheck() on the first button you want to start with.

Re: Radio Box

Michael Dunn26-Nov-01 9:40

Michael Dunn

26-Nov-01 9:40

The "group" attribute controls which radio buttons are linked up. It has nothing to do with being in a group box like the previous posts have said. The first radio button must have the group attribute set, the others must not have it set, then the control right after the last radio button in the tab order should have it set to mark the end of the group.

--Mike--
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While I can't be correct on all matters, I can make the reassuring claim that where I am inaccurate, I am at least definitively inaccurate.
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MSXML & VC++ Book

Derek Price26-Nov-01 4:40

Derek Price

26-Nov-01 4:40

Hello,

I am interested in using the MSXML parser using VC++. It seems there are endless books on the subject for VB and every other language, but I haven't been able to find one for VC++ specifically. I know many code sites (MSDN, CodeProject, etc.) have articles, but I would prefer a book. Can anyone suggest a book that focuses on the MSXML parser and VC++ (not .NET)?

Thanks!
Derek

Re: MSXML & VC++ Book

Nish Nishant26-Nov-01 6:47

Nish Nishant

26-Nov-01 6:47

Hi Derek

You are correct there. Nearly all the documentation on MSXML is about VB. I had this same problem an year ago.

I finally ended up using Expat - an XML parser library in C

I believe that since then there is Expat++ which is a C++ class library

I'd recommend Expat unless you very specifically want to use MSXML

Regards
Nish

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Re: MSXML & VC++ Book

Bill Wilson26-Nov-01 7:00

Bill Wilson

26-Nov-01 7:00

I would be suprised to find one. Using it in VC++ is just like using it in VB. Import it, create an instance and call its member functions (just like all other COM objects).

Hope this helps,
Bill

Handle Excel sheet from C++ program

XAlien26-Nov-01 4:24

XAlien

26-Nov-01 4:24

Hi all,
anyone know how to control an Excel sheet (if it is possible), create cells, create table, color it and similar...
thanks a lot. Smile | :)

Re: Handle Excel sheet from C++ program

Nish Nishant26-Nov-01 6:50

Nish Nishant

26-Nov-01 6:50

http://support.microsoft.com/support/kb/articles/q199/6/91.asp

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
Nish is a BIG fan of Goran Ivanisevic

How to handle program that I create by ShellExecute

Huu Quynh26-Nov-01 3:39

Huu Quynh

26-Nov-01 3:39

I use ShellExecute to execute IE opens some CGI script like:

HINSTANCE result = ShellExecute(NULL, _T("open"), mUrl, NULL,NULL, cmdshow );

Is it true?
And when I created, the handle is result?
And how to close this dialog by coding in my program?

Please help me! thank you very much!

Re: How to handle program that I create by ShellExecute

Nish Nishant26-Nov-01 6:43

Nish Nishant

26-Nov-01 6:43

The HINSTANCE returned is dummy. Ignore it.
I'd advise you to use ShellExecuteEx

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
Nish is a BIG fan of Goran Ivanisevic

Please Help

26-Nov-01 3:18

Hi folks

I have a guestion, How to save CBitmap object as a bmp file?

Mike

Re: Please Help

Christian Graus26-Nov-01 10:12

Christian Graus

26-Nov-01 10:12

Read the FAQ.

Christian

After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001

Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now

Debug tools

26-Nov-01 3:08

Does anybody knows tools for detecting resource leaks under 9x?

Re: Debug tools

Eugene Pustovoyt26-Nov-01 3:57

Eugene Pustovoyt

26-Nov-01 3:57

You can look at
http://msdn.microsoft.com/msdnmag/issues/01/03/leaks/leaks.asp

I'm use the NuMega DevPartner Studio

I hope, it that is necessary for you!

Best regards,
Eugene Pustovoyt
Big Grin | :-D

Re: Debug tools

26-Nov-01 5:28

10x Eugene,
I suppose you mean Numega BoundsChecker, unfortunatelly it doesn't work under 9x, not even Mutek Bug Trapper Frown | :-(

Dynamic linking

mimi26-Nov-01 2:57

mimi

26-Nov-01 2:57

I have DLL with some functions .
I wrote in vc client program and I need to create Dynamic linking .
How have do it ???

====================================================================
I tried write so :
--------------------
typedef DWORD(SQRTPROC) (DWORD,char*);
HINSTANCE hInstance;
SQRTPROC* pFunc;
VERIFY (hInstance = ::LoadLibrary("c:\\windows\\system\\myDLL.dll"));
VERIFY (pFunc = (SQRTPROC*) ::GetProcAddress(hInstance, "Func1"));

DWORD a = (*pFunc) (1, str); // Call the DLL function
===================================================================
and I got the error :
error LNK2001: unresolved external symbol _Func1@8

Confused | :confused:

Re: Dynamic linking

Joaquín M López Muñoz26-Nov-01 3:53

Joaquín M López Muñoz

26-Nov-01 3:53

Most likely you have left some missing call to Func1() when you decided to switch to dynamic linking. Remember now all calls to this functions must be thru the pointer pFunc. You have two options:

Globally replace all calls to Func1() with appropriate calls to the pointer,
write a little wrapper named Func1 that internally uses the pointer.

Ellaborating on the second solution, you can even consider doing what's called lazy initialization and load the function only when first needed, like this:

DWORD Func1(DWORD dw,char* pch) // wrapper for the real stuff
{
  static SQRTPROC* pFunc=(SQRTPROC*)::GetProcAddress(hInstance, "Func1");
  // this is guaranteed to execute on the first invocation to Func1

  return (*pFunc)(dw,pch);
}

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Dynamic linking. Thanks

26-Nov-01 8:53

Thank you !
I realy have left some missing call to Func1() .
Now it passed compilation successfully.
But I have a new problem with it .
I send it in a new thread.

How to delete some files in system folder

Huu Quynh26-Nov-01 2:53

Huu Quynh

26-Nov-01 2:53

I want to write a VC++ program, that can delete some file in system folder like: C:\\windows\\temporary internet files\0

I use some code like that

SHFILEOPSTRUCT sh;

sh.hwnd = GetSafeHwnd();
sh.wFunc = FO_DELETE;
sh.pFrom = "c:\\windows\\temporary internet files\\*.gif\0";
sh.pTo = NULL;
sh.fFlags = FOF_NOCONFIRMATION | FOF_SILENT;
sh.hNameMappings = 0;
sh.lpszProgressTitle = NULL;

SHFileOperation (&sh);

But happens a error: can not delete file : file system error (1026)

Default Internet Explore is IE. When I use Netscape like default I can delete some files!

Any ideas?

Thank you!

Re: How to delete some files in system folder

Rickard Andersson²⁰26-Nov-01 9:00

Rickard Andersson²⁰

26-Nov-01 9:00

I'm not sure about this but if IE makes the files unwrite able (write protected) the files perhaps wont be deleted. I don't know the SHFileOperation() func so much so I can give you a direct answer! Frown | :(

------------------------------

Re: How to delete some files in system folder

Michael Dunn26-Nov-01 10:11

Michael Dunn

26-Nov-01 10:11

There are no files in Temporary internet files. Look at it in a DOS box to see. There are several subdirs under that that actually have the files.

--Mike--
http://home.inreach.com/mdunn/
While I can't be correct on all matters, I can make the reassuring claim that where I am inaccurate, I am at least definitively inaccurate.
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screen unit question on playbook maker 4 football

26-Nov-01 1:40

Hi,

i would like to build a program to make plays for american football. i'm looking for a convenient way to loop through the play.
Every 50 msec, i would update the positions of the players. the players would be in a database and contain all different kinds of attributes like speed, strength. Speed would be for instance: he runs 40 yards in 4.8 seconds.
This means 8.33 yards in 1 second, leading to 0.41667 yards in 50 msec.
(correct me if i'm wrong)
So with the appropriate interval (50 msec?) and conveniently chosen coordinate system, calculating & plotting the new position should be pretty easy? (players will run along a route that can be drawn)

What's the easiest way to translate this info in a new position on screen of that player?

Do i change the screen coordinates in centimeter of feet (doesn't really matter for me if it's metric or not, it's the method that counts)?

Another thing i would like to add later on is acceleration. For instance,
it takes player x 1.2 seconds or 10 yards to reach his full speed.
Any ideas on that?
Any links to articles on these kinds of problems are also welcome.

Thanks for any info!

Advice !

Raju7726-Nov-01 1:39

Raju77

26-Nov-01 1:39

Hi,

I have written a code in VC++ to solve a puzzle.We need to integerate this with our educational site.This site is developed on Oracle8,ASP and VB.Please could you help me how to do it.

Re: Advice !

26-Nov-01 3:05

Maybe you can turn your VC++ program into a COM object so that VB could use it. Maybe a simple non-mfc dll will do the trick.

Re: Advice !

Raju7726-Nov-01 21:06

Raju77

26-Nov-01 21:06

Hi,
Thanx!
But i am a beginer and i am not familiar with COM and could you please elaborate more on that non-mfc dll.

Bye

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