Re: strange question - C / C++ / MFC Discussion Boards

Re: APP Won't launch in Release settings

Mike2418-Apr-03 7:31

Mike24

18-Apr-03 7:31

Yes indeed. But I got plenty of'em (DX stuff, nvidia cg dlls, my owns...)
Gonna have a look at it, thanx

Re: APP Won't launch in Release settings

Maximilien18-Apr-03 6:39

Maximilien

18-Apr-03 6:39

maybe usefull code put in ASSERT instead of VERIFY ?

Max.

Maximilien Lincourt
For success one must aquire one's self

How to Exit a Program

gmlnd18-Apr-03 5:46

gmlnd

18-Apr-03 5:46

I have a program,using a left menu of options, when the user click on the options to the left a new frame window opens up to the right.
I want the exit button to close the program. The Exit button is located in the left menu, not in the main frame.
I have used DestroyWindow(), but when I run the program and click on Exit the program crashes.

Re: How to Exit a Program

C^hris L^osinger18-Apr-03 6:19

C^hris L^osinger

18-Apr-03 6:19

try PostMessage(WM_QUIT)

C^hris L^osinger
Smaller Animals Software

Re: How to Exit a Program

Mike2418-Apr-03 6:21

Mike24

18-Apr-03 6:21

Or try the dirty way: exit(0);

Re: How to Exit a Program

gmlnd18-Apr-03 6:33

gmlnd

18-Apr-03 6:33

Thanks.

strange question

will138318-Apr-03 5:43

will1383

18-Apr-03 5:43

I have a dll with a dialog box that gets run when the function is called. This uses MFC.

I want to spawn a new thread that the dialog box runs in.

Here's the exported function:

extern "C" __declspec(dllexport) void XducerSpecDialog(int px, int patxrx, int cred, int tfmid, void (*TimerCallBack)(), int (*callbackFunc)(int tfmid))

I thought I could just use _beginthread, but I'm not quite sure what to do becuase I'm using MFC and I have an instance of the class object that I use to call:

theApp.RunDialog

Can I just call the _beginthread(theApp.RunDialog,0,my_arguements)???

Thanks!

Re: strange question

Erik Juhl18-Apr-03 6:48

Erik Juhl

18-Apr-03 6:48

I think you need to use the MFC thread functions within MFC, AfxBeginThread(). Unless theApp.RunDialog has a function signature of a worker thread, you might want to take a different approach. Define a worker thread with a signature like UINT MyControllingFunction( LPVOID pParam ); and use that as the first parameter to AfxBeginThread. Pass theApp as a second parameter and from inside your worker thread, call RunDialog. Here's a sample from MSDN using a CMyObject instead of theApp...

UINT MyThreadProc( LPVOID pParam )
{
CMyObject* pObject = (CMyObject*)pParam;

if (pObject == NULL ||
!pObject->IsKindOf(RUNTIME_CLASS(CMyObject)))
return 1; // if pObject is not valid

// do something with 'pObject'

return 0; // thread completed successfully
}

// inside a different function in the program
.
.
.
pNewObject = new CMyObject;
AfxBeginThread(MyThreadProc, pNewObject);
.
.
.

WMI - How do I use it ?

Sendel18-Apr-03 4:39

Sendel

18-Apr-03 4:39

Has anyone an example of using WMI in Visual C++ ?

Re: WMI - How do I use it ?

dan o16-Jul-03 3:10

dan o

16-Jul-03 3:10

hi,

see at microsoft.com

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmisdk/wmi/example_creating_a_wmi_application.asp

hope it helps

dan o

Re: WMI - How do I use it ?

Sendel16-Jul-03 5:42

Sendel

16-Jul-03 5:42

Thank you !
Long time ago when I asked this question, I thought I never get an answer, but I failed: Thank you, I will try that Link out. But I already looked into MSDN Help, so I think it would not help to solve my problem. May be I have to buy a good book in WMI-Programming because I need example sources to understand really how it works (its a little habit).

Thank you Rose | [Rose]

Sendel

The only place for millions of bugs is the Rainforest

Question about Active X

dvlpt18-Apr-03 3:49

dvlpt

18-Apr-03 3:49

Hi everybody

Is it possible to insert into an Active X Project an other active X?

Can you tell me about this?

dvlpt

SetFocus Problem

Mathias S.18-Apr-03 2:54

Mathias S.

18-Apr-03 2:54

From my application I open up a modless dialog. And when this dialog is closed the focus is NOT returned to the application. How can I fix that..

Anyone have any tips for me ?

Re: SetFocus Problem

Bartosz Bien18-Apr-03 3:11

Bartosz Bien

18-Apr-03 3:11

You may possibly restore the focus manually:

void CMyModelessDlg::OnDestroy()<br />
{<br />
    CWnd *pParent = GetParent();<br />
    CDialog::OnDestroy();<br />
    pParent->SetFocus();<br />
}

Of course your modeless dialog must be a child of the window that you want to refocus. You may also try AfxGetMainWnd()->SetFocus() otherwise.

Regards,
BB

Move modeless dialog over a control

Cedric Moonen18-Apr-03 2:24

Cedric Moonen

18-Apr-03 2:24

Hello!

I need to move a modeless dialog over a specific control from the parent window! (On the parent window resource, I draw a picture wich will be covered by the new modeless window).
The problem is that the MoveWindow function is relative to the upper-left corner of the parent window’s client area and the GetWindowRect is in screen coordinate !!!!

Can someone help me?
Thanks!

Ok solved ! :)

Cedric Moonen18-Apr-03 2:29

Cedric Moonen

18-Apr-03 2:29

I found the ScreenToClient function Smile | :)

Are there some reference about how to use auto_ptr?

George218-Apr-03 2:07

George2

18-Apr-03 2:07

Hi, everyone!

I find the samples on MSDN is not very clear and
the documents are not sufficient. Where can I find
I tutorial about this topic?

regards,
George

Re: Are there some reference about how to use auto_ptr?

Xander8018-Apr-03 2:14

Xander80

18-Apr-03 2:14

Does this help:

http://www.gotw.ca/publications/using_auto_ptr_effectively.htm

Re: Are there some reference about how to use auto_ptr?

George218-Apr-03 2:38

George2

18-Apr-03 2:38

Thanks, Xander80 buddy!

George

What means "smart pointer"?

George218-Apr-03 1:28

George2

18-Apr-03 1:28

Hi, everyone!

What means "smart pointer"? Where can I find some
online materials to refer?

Thanks in advance,
George

Re: What means "smart pointer"?

Zdeslav Vojkovic18-Apr-03 1:43

Zdeslav Vojkovic

18-Apr-03 1:43

smart pointer is a class that wraps a pointer and overloads operator -> , to enable clients to use the smart pointer with same syntax as regular pointer. the class takes care of lifetime of the wrapped object (e.g. reference counting for COM objects, or deallocation for regular pointers).
Example:

void fn()
{
   std::auto_ptr<CMyClass> pMyClass = new CMyClass();
   pMyClass->SomeFunction(); // pMyClass is object, not a pointer, but -> operator is used
}  // no need to call delete, auto_ptr takes care of it

some examples:
std::auto_ptr<> - check MSDN library
_com_ptr_t<> - wraps COM objects, VC++ compiler supported (check MSDN library)
CComPtr<> - wraps COM objects, provided by MFC (check MSDN library)

also, check Boost[^] for few other implementations

Re: What means "smart pointer"?

George218-Apr-03 2:04

George2

18-Apr-03 2:04

Thanks, Zed buddy!

George

Problem in Desk Band

Pious18-Apr-03 0:11

Pious

18-Apr-03 0:11

Hi,
I have created a Deskband in internet Explorer and it is working fine. My Deskband contains two COM objects (designed by me and they are also doing fine). The problem i am facing is that if i right click a link in IE window, while my Deskband is selected, and click on "Open in New Window", then my Deskband also shows up in the new pane but it doesn't contain anything.

Please suggest me what to do!

regards,

Docked toolbar with 2 columns

ABMuppet17-Apr-03 23:20

ABMuppet

17-Apr-03 23:20

Hello,

I'd like to create a toolbar (docked) with a width of 2 columns. I've searched newsgroups and the web, and all I can find is a way to set a CPaletteBar's width, via:
m_wndPaletteBar.SetColumns(AfxGetApp()->GetProfileInt(_T("General"),_T("Columns"),3));

I'd like to stick to a toolbar though - can it be done?
I'd like it to look like the paint program that comes with windows.
Also, when you pick the brush tool in Paint - you get a choice of brushes, I guess this is using a CDialogBar, but which control is it using?

Many thanks,

Josh

24bit compatibitible

Prog Mmer17-Apr-03 23:16

Prog Mmer

17-Apr-03 23:16

Dear Friends

My application which is in WINAPI doesn`t support 24bit color screen.it is wokring for all other options like 32 bit,256color etc.In 24 bit mode, I am getting garbled picture.

Kindly write to me how to solve it.

Thanking you.

Adarsh

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