C / C++ / MFC

alex.barylski25-Mar-02 12:14

alex.barylski

25-Mar-02 12:14

There the same thing...?

I thought zOrder was vertical or depth of the control.

Like layers or divs in DHTML...a high zOrder makes the layer a top level window.

Tab order was basically the order in which the controls were created?

Their is no difference...? Smile | :)

Cheers!

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

Tomasz Sowinski25-Mar-02 12:26

25-Mar-02 12:26

Tab order determines the order in which controls are created. Created controls are inserted sequentially into child windows list of their parent. Order on this list is z-order.

Tomasz Sowinski -- http://www.shooltz.com
** If you're going to rape, pillage and burn, be sure to do things in that order. **

hkl25-Mar-02 12:02

hkl

25-Mar-02 12:02

You may want to try the beginner tutorials for VC++. I've tried that and it helps ALOT. Try the Button Control....... (I am new too..)

CFormView OnInitialUpdate() ?

Tim Deveaux25-Mar-02 14:46

Tim Deveaux

25-Mar-02 14:46

You can experiment with the Transparent checkbox in the controls properties (Extended Styles tab)... not sure if thats what you want, but I think its the closest thing to 'Bring to Front'...

dazinith25-Mar-02 11:32

dazinith

25-Mar-02 11:32

I have a split view which is declared like:

CMainFrame *pFrame = (CMainFrame *)(AfxGetApp()->m_pMainWnd);
pFrame->m_wndSplitter.ReplaceView(0,0,RUNTIME_CLASS(CMyFormView),CSize(500,320));
pFrame->m_wndSplitter.ReplaceView(1,0,RUNTIME_CLASS(CMyFormView2),CSize(500,500));

In one of the formview's i have a list control, and a combo box which need to be populated. When I try to overload either OnInitialUpdate(), or OnActivateFrame() they never get called (im assuming because of the split window)..

So what function should be overloaded to populate my combobox and list? Any Suggestions?

thanks for the help!

-dz

Re: CFormView OnInitialUpdate() ?

Tomasz Sowinski25-Mar-02 11:32

Re: VC++ 6.0 and VC++ .NET !

25-Mar-02 11:32

What's 'ReplaceView'? Anyway, you may want to call CFrameWnd::InitialUpdateFrame to get OnInitialUpdate called.

Tomasz Sowinski -- http://www.shooltz.com
** If you're going to rape, pillage and burn, be sure to do things in that order. **

VC++ 6.0 and VC++ .NET !

Hadi Rezaee25-Mar-02 11:23

Hadi Rezaee

25-Mar-02 11:23

Hi there,
I don't want start a big war between VC++ 6.0 and VC++ .NET Wink | ;)

But i have question of VC++ programmers about it !

Question:

WHAT IS YOUR REASON FOR USING VC++ .NET ?
DO YOU WANT TO CHANGE TO VC++ .NET ?

hmmm, let me open the problem:

WHEN I MUST USE VC++ .NET ?!!!

Please tell me your idea Smile | :)

My month article: Game programming by DirectX by Lan Mader.
Please visit in: www.geocities.com/hadi_rezaie/index.html

Hadi Rezaie

dazinith25-Mar-02 11:34

dazinith

25-Mar-02 11:34

no point in studying something that will be outdated soon.. thats why i ordered .net.. although the loss of classwizard has still left a bad taste in my mouth

-dz

Re: VC++ 6.0 and VC++ .NET !

Michael P Butler26-Mar-02 3:48

Michael P Butler

26-Mar-02 3:48

I'll be moving over to VC++.NET IDE when I have finished my current projects. The reasons to move. Well, mainly because VC6 won't be getting updated. Some of the new ATL Server stuff looks like it might be useful. New MSDN will only integrate into the new IDE.

I'm not 100% convinced about the new IDE yet but I know I'm going to have to learn it sooner or later.

I won't be developing many apps for the .NET framework in C++ as my customers aren't asking for it yet.

If you are still developing C++ apps for Windows then there is no rush to move over to .NET IDE.

Michael Smile | :)

Hooking CFileDialog ASSERT And a question

Maximilien25-Mar-02 10:56

Maximilien

25-Mar-02 10:56

Using VC6 SP5 ...

I'm trying to hook the CFileDialog with the following :

...
 CFileDialog dlg(FALSE);
 CHAR fileBuf[256] = { "output.ext"};
 dlg.m_ofn.nMaxFile = 256;
 dlg.m_ofn.lpstrFile = fileBuf;
 dlg.m_ofn.lpstrDefExt =  "ext";
 dlg.m_ofn.Flags =  OFN_EXPLORER|OFN_ENABLEHOOK;
 dlg.m_ofn.lpfnHook = (LPOFNHOOKPROC)OFNHookProc;
...

and I'm getting an ASSERT in DLGFILE.cpp (mfc sources )

...
 if (nResult)
  ASSERT(pThreadState->m_pAlternateWndInit == NULL);
...

The Callback is

UINT_PTR CALLBACK OFNHookProc(HWND hdlg,      // handle to child dialog box
                              UINT uiMsg,     // message identifier
                              WPARAM wParam,  // message parameter
                              LPARAM lParam   // message parameter 
                              )
{
 if ( uiMsg == WM_NOTIFY )
 {
   NMHDR *phdr =  (NMHDR *)lParam;
   switch (phdr->code)
   {
    case CDN_FILEOK:
    {
     TCHAR filename[255];
     DWORD dwResult = SendMessage( (HWND) GetParent(hdlg),  
                                   CDM_GETSPEC, 
                                   (WPARAM) 255,
                                   (LPARAM) filename );
     std::wstring s(filename); 
     if ( !ValidateFileName(s) )
     {
       AfxMessageBox(L"Invalid file name");
       ::SetWindowLong( hdlg, DWL_MSGRESULT, 1 );
       return 1;
     }
    }
   }
 }
 return 0; // processed by the hook.
}

Anything that I missed ? seems that all the flag are ok?

The question is that when I type "<" in the filename text field, I don't get the WM_NOTIFY in the callback, and Windows pops a standard dialog saying that what I typed is invalid, but when I type ">" I do get the WM_NOTIFY and goes into my code ??! and both caracters are invalide filename caracters?!!? Any clue on that ?

Thanks for any info.
Max.

Re: Hooking CFileDialog ASSERT And a question

Tomasz Sowinski25-Mar-02 10:59

Re: Hooking CFileDialog ASSERT And a question

25-Mar-02 10:59

Can't you just override CFileDialog::OnFileNameOK? MFC does hooking for you - you don't need to play low-level.

Tomasz Sowinski -- http://www.shooltz.com
** If you're going to rape, pillage and burn, be sure to do things in that order. **

Maximilien25-Mar-02 11:06

Maximilien

25-Mar-02 11:06

Gawd, I feel like a dork !!! Arrggggg!

Sorry!

Max.

Please, read this !

25-Mar-02 10:49

help with downloading from a login/pass web using php

hi, i would like to do something like that:

the website targeted use PHP to login with a username and a password.

and then, some menu is shown, (all using .php or .php3 extension for viewing pages.)

the fact is, if i do not log with my user/password within internet explorer, i can't even retrieve files i want using internet explorer.

but, even after logging in, and when i am able to download any file ending with .php3?someparam=somevalue&another=anothervalue etc...
when i use a offlinebrowser application to save all pages i want, the external application finally download a page which says i'm not logged on. although i can still download that page opening an internet explorer windows... (and setting the offline browser 'spider' to identify itself as IE doesn't solve the problem.)

so i have figured out that i need something, which will log in using a specified username/password, and then, will download all files linked from a single url. (and that need to work with either .php or .php3?x=1&pass=2 files...)

how can i do that?

Re: Please, read this !

Joaquín M López Muñoz25-Mar-02 10:50

Joaquín M López Muñoz

25-Mar-02 10:50

User identity is usually maintained across a browsing session by means of cookies kept at the client side. I gues what's happening is simply that your offline browser does not keep cookies.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Please, read the forum title!

Le centriste25-Mar-02 10:56

Le centriste

25-Mar-02 10:56

Michel

If I am wrong or said something stupid, I apologize in advance Wink | ;)

Truly Bizarre

#realJSOP25-Mar-02 10:34

25-Mar-02 10:34

My app is crashing with a First Chance exception in ExitInstance().

The bizarre part is that it crashes on a line similar to this:

// elsewhere in the code
CMyClass* m_pObject;
m_pObject = CMyClass::allocInstance(); // don't ask - it wasn't my idea

// in exit instance
if (m_pObject)

Yes, it crashes on the if statement. To add to the mystery, the assembly code looks like this:

0041B431   call   dword ptr [__imp__CoUninitialize@0 (008f1db0)]

What the heck is *that* all about?

This didn't start happening until I added a DLL that uses COM to communicate wirth DirectShow. The DLL contains calls to CoInitialize and CoUninitialize.

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Christian Graus25-Mar-02 10:45

Christian Graus

25-Mar-02 10:45

Is it a COM object ? Maybe you've called CoUninitialise and then you're trying to access a smart pointer ?

Christian

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

"I'm somewhat suspicious of STL though. My (test,experimental) program worked first time. Whats that all about??!?!
- Jon Hulatt, 22/3/2002

#realJSOP26-Mar-02 0:31

26-Mar-02 0:31

Nope, the pointer in question is about as far from the COM stuff as it can get.

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Tomasz Sowinski25-Mar-02 10:54

25-Mar-02 10:54

Can you put the breakpoint and check what's in m_pObject? Is it a valid pointer?

Tomasz Sowinski -- http://www.shooltz.com
** If you're going to rape, pillage and burn, be sure to do things in that order. **

#realJSOP26-Mar-02 0:33

26-Mar-02 0:33

It is a valid pointer (not NULL, and not 0Xcdcdcdcd). Smile | :)

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Tomasz Sowinski26-Mar-02 0:51

26-Mar-02 0:51

Well, in such case it's best to 'Rebuild All', but I'm sure you've already done this Smile | :)

Is this a debug version without any optimizations?

Tomasz Sowinski -- http://www.shooltz.com
** If you're going to rape, pillage and burn, be sure to do things in that order. **

#realJSOP26-Mar-02 2:50

26-Mar-02 2:50

Yeah...

Wierd problem, eh?

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Tomasz Sowinski26-Mar-02 2:51

26-Mar-02 2:51

John Simmons / outlaw programmer wrote:
Wierd problem, eh?

It is. All you can do now is to step into disassembly at the beginning of the function and proceed instruction by instruction Smile | :)

Tomasz Sowinski -- http://www.shooltz.com
** If you're going to rape, pillage and burn, be sure to do things in that order. **