Re: Which book to buy - C / C++ / MFC Discussion Boards

Re: 3 questions for programmer community

Joaquín M López Muñoz11-Mar-02 21:57

11-Mar-02 21:57

1) I guess leaving all the code in the .h file can make sense for short classes where everything can be inlined without much code bloat. Also, for templates this is the best option too (though not the only one). Apart from these cases, I guess having a separate .cpp file for the implementation is not that uncorfomtable for the user after all.

3) IMHO, the simplest way to use a CWnd-derived class as a CView of sorts is by following your first approach: create a CFormView and drop your class there as a child control.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: 3 questions for programmer community

alex.barylski11-Mar-02 22:05

alex.barylski

11-Mar-02 22:05

Thanx Joaquín.

I just needed to hear that from someone other myself. Not that I have dual personalities or anything, but I certainly struggle with myself with such issues like, personal preference. Smile | :)

"An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Re: 3 questions for programmer community

Tomasz Sowinski11-Mar-02 23:53

Tomasz Sowinski

11-Mar-02 23:53

#3 - check CCtrlView.

Tomasz Sowinski -- http://www.shooltz.com

Re: 3 questions for programmer community

Joaquín M López Muñoz12-Mar-02 0:01

Joaquín M López Muñoz

12-Mar-02 0:01

What prevented me from suggesting CCtrlView as an alternative is the fact that the encapsulated window must have a distinct class name, which is not the case (by default) with CWnd-derived classes.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: 3 questions for programmer community

Tomasz Sowinski12-Mar-02 0:10

Tomasz Sowinski

12-Mar-02 0:10

IMHO, it's easier to register the class and use CCtrlView derivative instead of playing with window hosted in CFormView.

Tomasz Sowinski -- http://www.shooltz.com

Re: 3 questions for programmer community

Joaquín M López Muñoz12-Mar-02 0:15

Joaquín M López Muñoz

12-Mar-02 0:15

This is what I like about this world of ours --that people have different opinions from one's own Smile | :)

Of course, registering and using CCtrlView is a nice solution. Regards.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Which book to buy

11-Mar-02 20:11

Hi,
I am Sinead.I have reached intermediate ,well,upper intermediate level in MFC.I now want to learn more about stuff like different messages,structures,owner draw,hooks and other such stuff Micheal Dunn talks about.
Could anyone suggest a good book that encompasses my needs.
Also,should I go for MFC or API?

cheers . Rose | [Rose]

Re: Which book to buy

Serge Krynine11-Mar-02 20:23

Serge Krynine

11-Mar-02 20:23

This one is quite good: Professional MFC With Visual C++ 6
by Mike Blaszczak.

Re: Which book to buy

NormDroid11-Mar-02 20:39

NormDroid

11-Mar-02 20:39

Most of this stuff can be researched on MSDN, esp. the older versions of MSDN, I have a copy dating back to '93!

Also try for some Windows Internals books. And above all look at the MFC code.

Normski. - Professional Windows Programmer

Re: thanx but...

11-Mar-02 20:44

Ya,thanx but is there any book by the MS press?
I prefer book to MSDN .Book can be read anytime anywhere.
Sinead.

Re: thanx but...

Christian Graus11-Mar-02 21:28

Christian Graus

11-Mar-02 21:28

Programming Windows by Charles PEtzhold is THE book for API Programming. I personally recommend using MFC, but Petzhold's book is still useful in that case.

Christian

The tragedy of cyberspace - that so much can travel so far, and yet mean so little.

"I'm thinking of getting married for companionship and so I have someone to cook and clean." - Martin Marvinski, 6/3/2002

Re: thanx a lot...

22-Mar-02 5:26

thanks,
I knew Charles was good book,now confirmed that you said.
thanx again Rose | [Rose]

CListCtrl

Orbital^11-Mar-02 19:44

Orbital^

11-Mar-02 19:44

Hy!
How can I set an item checked in a CListCtrl( I'm talking about that blue bar that when you click on a item )

Bye,
Orbital^

...the night is long ... but not long enought to do some real coding ...

Re: CListCtrl

Serge Krynine11-Mar-02 20:00

Serge Krynine

11-Mar-02 20:00

Use the CListCtrl::SetItemState() function with LVIS_SELECTED

Re: CListCtrl

Joaquín M López Muñoz11-Mar-02 19:55

Joaquín M López Muñoz

11-Mar-02 19:55

m_list.SetItemState(nItem,LVIS_FOCUSED|LVIS_SELECTED,LVIS_FOCUSED|LVIS_SELECTED);

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

rebuild problem

bryce11-Mar-02 19:32

bryce

11-Mar-02 19:32

Hi probably easy to fix, but my VC wants to rebuild ALL the files inthe project when I hit F7 rather than just the files which have changed
what setting do i need to fix?
regards
bryce

Re: rebuild problem

Serge Krynine11-Mar-02 19:50

Serge Krynine

11-Mar-02 19:50

Go to Tools | Customize menu and open the Customize dialog. In the Category choose Build. In Command select BuildRebuildAll. Check the Current Key. If it displays F7, remove it.

Re: rebuild problem

bryce11-Mar-02 22:28

bryce

11-Mar-02 22:28

cool
you couldnt tell me how to stop F5 from asking about rebuilds when i want to run in debug mode as well?
coz its always reporting the files are out of date etc when no cpp or .h files have changed

bryce

ShellExecute and run WordPad.exe ??

11-Mar-02 16:43

I want to run WordPad.exe and open a text file from my Win32 program.
Now I use this API: ShellExecute but it seems not work. Could anyone tell me the right way to call ShellExecute and use WordPad.exe to open a given text file ?
Thanks !!

PS> I did it this way, but it didn't work..
And, how can I know the right "path" to WordPad.exe ?

hAppInst = ::ShellExecute( ghParentWnd, "open", "WordPad.exe myDoc.exe", NULL, NULL, SW_SHOWDEFAULT );

Re: ShellExecute and run WordPad.exe ??

Nish Nishant11-Mar-02 17:13

Nish Nishant

11-Mar-02 17:13

A newbie's elementary guide to spawning processes

Bow wow wow,
Yippee yo yippee yay,
My miniputt high,
Is now 30 yay.

Re: ShellExecute and run WordPad.exe ??

Lim Bio Liong11-Mar-02 17:30

Lim Bio Liong

11-Mar-02 17:30

Hello Manio,

The following is a sample code listing that demonstrates how to call ::ShellExecute() :

HINSTANCE hInstExe = NULL;

hInstExe = ShellExecute
(
(HWND)NULL, // Replace this with your window handle.
(LPCTSTR)"open",
(LPCTSTR)"WordPad.exe",
(LPCTSTR)"c:\\sometext.txt", // Replace this with your specific file.
(LPCTSTR)NULL,
(INT)SW_SHOWNORMAL
);

Looking at your sample code, I think it is an error to specify "Wordpad.exe" together with "myDoc.exe" as in "WordPad.exe myDoc.exe". It is also a little odd that you want WordPad.exe to open an EXE file.

Furthermore, the parameter to Wordpad.exe should be specified in the 4th parameter. In my case, my parameter is "c:\\sometext.txt".

Hope the above will help you, Manio.

Best Regards,
Bio.

Known issues with MoveMemory() in XP

11-Mar-02 15:52

I found that a call to MoveMemory failed for some values of the last parameter dwLen. The call works perfect for all values in 98, but fails for some values in XP. Are there any known issues?

Re: Known issues with MoveMemory() in XP

Tim Smith11-Mar-02 17:08

Tim Smith

11-Mar-02 17:08

I bet the memory you are copying is invalid under an NT operating system or the length is too large.

Tim Smith

I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk?

Copy Assignment :: C++

valikac11-Mar-02 15:42

valikac

11-Mar-02 15:42

Hi.

I have a *pointer* to a linked list of objects. I need to write a copy assignment that will allow me to assign a new linked list the same contents as whatever the *pointer* points to.

For example:

MyList *pMList = new MyList;

pMList->insertData() // info.name1 & info.address1;
pMList->insertData() // info.name2 & info.address2;
pMList->insertData() // info.name3 & info.address3;

I would like to write a copy assignment to clone "pMList."

I have tried this:

MyList newList;

newList = *pMList;

------
const CMyList &CMyList:perator=(const CMyList &rCMyList)
{
if (&CMyList == this)
throw exception();

else
{
cloneList(CMyList);

return *this;
}
}
----------
void CMyList::cloneList(const CMyList &rSourceList)
{
cout << "\nCheck0a";

nodeCnt = rSourceList.nodeCnt;

cout << "\nCheck0b";

pOriginNode->info = rSourceList.pOriginNode->info;

CMyListNode *pNewNode = pOriginNode;

cout << "\nCheck 1";

for (CMyListNode *pTraverse = rSourceList.pOriginNode->next; pTraverse != 0; pTraverse = pTraverse->next)
{
try
{
pNewNode->next = new CMyListNode;
}

catch (bad_alloc &dmaError)
{
cerr << "\nError: " << dmaError.what[)
<< "\nPress any key to close program";

cin.ignore(256, '\n');
cin.clear();

exit(1);
}

pNewNode = pNewNode->next;
pNewNode->info = pTraverse->info;
}

cout << "\nCheck2";

pNewNode->next = 0;
}
-----

The code above looks decent. I could not find any logic error. Again, I have a *pointer* to a linked listed of objects. I need to clone that linked list. I could not get the assignment operator to work. Is there something logically incorrect?

Thanks,
Kuphryn

Re: Copy Assignment :: C++

Paul M Watt11-Mar-02 17:29

Paul M Watt

11-Mar-02 17:29

The first problem that I see with your assignment operator has nothing to do with your problem, but it will cuase a memory leak. You need to delete the existing memory in the current object, before you clone the data from rCMyList.

const CMyList &CMyList:perator=(const CMyList &rCMyList)
{
  if (&CMyList == this)
  {
    throw exception();
  }
  else
  {
    // Delete existing memory here.

    cloneList(CMyList);

    return *this;
  }
}

On to your problem, where does pOriginNode get initialized? It appears that you are just using it.:

void CMyList::cloneList(const CMyList &rSourceList)
{
  cout << "\nCheck0a";

  nodeCnt = rSourceList.nodeCnt;

  cout << "\nCheck0b";

  pOriginNode->info = rSourceList.pOriginNode->info;

  CMyListNode *pNewNode = pOriginNode;

...

If this pointer is never initialized, then the memory that you assign at this address will be lost. Are you stepping through with the debugger to determine where the problem is, or do you just know at this point that the assignment operator does not work?

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.