C / C++ / MFC Discussion Boards

Mark Salsbery5-Jun-07 8:23

5-Jun-07 8:23

Looking through those headers I can't see why you'd get that message.

Do you have WIN32 defined (probably in the project settings preprocessor defines)? You should Smile | :)

Also, maybe try including windows.h before those includes, but I can't readily see where that
would make a difference.

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: sqltypes.h giving error

Programm3r5-Jun-07 8:39

Programm3r

5-Jun-07 8:39

One catch though ... I'm using Borland C++ Builder 2006. I developed a cpp and header file in VC++ 2005 and now I want to use it in Borland but I get the above error ... Sigh | :sigh:

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Re: sqltypes.h giving error

Mark Salsbery5-Jun-07 8:49

Mark Salsbery

5-Jun-07 8:49

But you're using header files from the Windows Platform SDK, right? Or does Borland have
their own version of Windows headers?

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: sqltypes.h giving error

Programm3r5-Jun-07 8:51

Programm3r

5-Jun-07 8:51

Well in one of the lib directories of the Borland folder the odbc32.lib exists. So yes, I guess that Borland has those header files Confused | :confused:

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Re: sqltypes.h giving error

Mark Salsbery5-Jun-07 9:00

Mark Salsbery

5-Jun-07 9:00

That's a library not a header Poke tongue | ;-P

Take a look through sqltypes.h - does it refer to "WIN32"? What about "HWND"?

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: sqltypes.h giving error

Programm3r5-Jun-07 19:21

Programm3r

5-Jun-07 19:21

Yes, all of the header files are there.

sql.h
sql_1.h
sqlext.h
sqltypes.h
....
....

And all of the states "Microsoft Corporation" at to the top.

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r
My Blog: ^_^

Re: sqltypes.h giving error

Mark Salsbery6-Jun-07 4:40

Mark Salsbery

6-Jun-07 4:40

Mark Salsbery wrote:
Take a look through sqltypes.h - does it refer to "WIN32"? What about "HWND"?

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Drive types

RomTibi5-Jun-07 6:07

RomTibi

5-Jun-07 6:07

How can I determine what type of media is associated with a letter in Windows?
Example:
A: is floppy,
B: not used,
C: fixed drive,
D: CD-ROM,
etc.

In VC++ 6 please.

36. When you surround an army, leave an outlet free.
...
Do not press a desperate foe too hard.

SUN-TZU - Art of War

Re: Drive types

Hans Dietrich5-Jun-07 6:46

Hans Dietrich

5-Jun-07 6:46

Take a look at GetDriveType().

Best wishes,
Hans

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Re: Drive types

RomTibi5-Jun-07 8:39

RomTibi

5-Jun-07 8:39

Thank you, very much!

Smile | :)

36. When you surround an army, leave an outlet free.
...
Do not press a desperate foe too hard.

SUN-TZU - Art of War

VC or not VC

Jooooe5-Jun-07 5:52

Jooooe

5-Jun-07 5:52

hello everybody

i used to do quite a lot of vc a few years
but got a job using another programing lauguage called PReS. (I bet nobody has heard of it)

is vc still the language to learn or would vb.net or c# or somthing else be better

which the most used language these days

jooooe Confused | :confused:

Re: VC or not VC

David Crow5-Jun-07 6:01

David Crow

5-Jun-07 6:01

Jooooe wrote:
is vc still the language to learn...

If you need to.

Jooooe wrote:
which the most used language these days

How could anyone possibly know the answer to this? Roll eyes | :rolleyes:

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: VC or not VC

Matthew Faithfull5-Jun-07 6:04

Matthew Faithfull

5-Jun-07 6:04

If you ask in here you know you're going to get the answer VC++ Big Grin | :-D

After all you're not a soft headed newbie who need his memory managed for him are you? Seriously it all depends on what you want to do, how much control you want over how it's done and how quickly you want it done.

Nothing is exactly what it seems but everything with seems can be unpicked.

Re: VC or not VC

bob169726-Jun-07 6:01

bob16972

6-Jun-07 6:01

Jooooe wrote:
which the most used language these days

www.tiobe.com keeps statistics on programming language search engine queries. As Mr. Crow stated, it is unlikely that this will be an accurate representation of what is used most as nobody could possibly know that, but it gives one a picture of how often a person resorts to a search engine query for a particluar language.

One could argue since MSDN is so thorough, that there will be fewer queries from users using Microsoft compilers which would indicate the statistics are probably less than accurate. One could also argue that the statistics merely indicate which languages require secondary assistance to get things done and could simply indicate a flawed help system for the leading compilers of that language.

Beware of buzzword fluctuations as they usually reflect the initial surge of queries to find out what a buzzword technology is. Those tend to taper off after the first year for newer technologies.

Problem with closing program

KellyR5-Jun-07 5:29

KellyR

5-Jun-07 5:29

Hi,

This program is a dialog-based MFC application.

My problem is that when I click the "X" in the top right corner of the program to close it, only the window closes, but the process remains running.

I'm not very familiar with MFC (I usually use standard Windows API) so I don't know how to catch the WM_SYSCOMMAND message to handle this. I've tried ON_WM_SYSCOMMAND() in the message map, but I get a compiler error since neither of my two classes are inherited from CWnd objects (one is CWinApp, the other is CDialog).

Does anyone know why my program isn't closing, or how could I catch the WM_SYSCOMMAND message so I could force it to close?

Thanks!

Re: Problem with closing program

David Crow5-Jun-07 5:38

David Crow

5-Jun-07 5:38

KellyR wrote:
...but the process remains running.

How are you verifying this? Have you created additional threads?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Re: Problem with closing program [modified]

KellyR5-Jun-07 7:06

KellyR

5-Jun-07 7:06

The process is still visible in the task manager, and no I only have a single thread.

Re: Problem with closing program

Mark Salsbery5-Jun-07 7:21

Mark Salsbery

5-Jun-07 7:21

How and where is the main dialog created?

BTW, CDialog IS a CWnd Smile | :)

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: Problem with closing program

KellyR5-Jun-07 7:29

KellyR

5-Jun-07 7:29

I thought so too but for some reason I still get a compiler error when I try to map ON_WM_SYSCOMMAND() in my dialog; I guess that's because the BEGIN_MESSAGE_MAP macro ties my class to CDialog and not CWnd? Sorry if I sound like an idiot, I'm just not that familiar with how MFC works. This is the first MFC application I've ever created from scratch so I'm still getting the hang of it.

The main dialog is created in the InitInstance() of the main application.

So something like this:

BOOL CTheApp::InitInstance()<br />
{<br />
  CWinApp::InitInstance();<br />
  m_MainDlg = new CMainAppDlg();<br />
  <br />
  if(!m_MainDlg->Create(IDD_MAIN_DIALOG))<br />
  {<br />
    AfxMessageBox(TEXT("Failed to initialize."), MB_OK, 0);<br />
    return FALSE;<br />
  }<br />
  m_MainDlg->SetWindowText(TEXT("Test Dialog"));<br />
  m_pMainWnd = m_MainDlg;<br />
<br />
  return TRUE;<br />
}

Re: Problem with closing program

Mark Salsbery5-Jun-07 7:43

Mark Salsbery

5-Jun-07 7:43

What's the compiler error when you add a ON_WM_SYSCOMMAND() entry to the dialog class'
message map?

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: Problem with closing program

KellyR5-Jun-07 7:51

KellyR

5-Jun-07 7:51

The error is this:

error C2440: 'static_cast' : cannot convert from 'void (__thiscall CMainAppDlg::* )(void)' to 'void (__thiscall CWnd::* )(UINT,LPARAM)'

Re: Problem with closing program

Mark Salsbery5-Jun-07 7:57

Mark Salsbery

5-Jun-07 7:57

Your handler function needs to be declared as

afx_msg void OnSysCommand(UINT nID, LPARAM lParam);

From the error message it looks like you have void OnSysCommand();

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: Problem with closing program

KellyR5-Jun-07 8:04

KellyR

5-Jun-07 8:04

Oh, duh.. thanks!

Re: Problem with closing program

Mark Salsbery5-Jun-07 8:21

Mark Salsbery

5-Jun-07 8:21

I'm still not sure why the app isn't shutting down - I thought CWnd::OnNcDestroy() took
care of that if the window is the app's main window (designated by setting m_pMainWnd in
InitInstance()). Maybe debugging a breakpoint there will explain it.

Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

Re: Problem with closing program

David Crow5-Jun-07 10:08

David Crow

5-Jun-07 10:08

Is this a dialog-based application? If so, then why are you creating a modeless dialog?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

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