C / C++ / MFC Discussion Boards

MolleX28-Sep-01 4:37

28-Sep-01 4:37

I have created a SDI project without Doc/View support.
So I got the following classes WinApp, CMainFrame, CChildView.

Now I got 2 questions how do I add controls to the CChildView which I guess is the view I see when I run the project?

Second how do I add a new view and shows it? Can I use CFormViews?

If anyone know any sites that describes this please let me know.

Cheers

Re: Basic question

Mukkie1-Oct-01 6:02

Mukkie

1-Oct-01 6:02

I guess, that when saying "add controls to the cchildview" You mean creating some wnd's like on dialog?
If yes, then You need to derrive Your CView class from CFormView. CFormView needs IDD of the dialog (unique identifier). Then, Your application will display dialog in view.

But If this is really Your goal, maybe it would be better to create dialog application, not MDI/SDI app.

In order to add new views, You will need to create splitter, either dynamically or statically. You can find complete help in MSDN along with samples.

How to detect return key in a CListControl?

Ricardo Beja28-Sep-01 4:33

Ricardo Beja

28-Sep-01 4:33

Hi
I'm developing an application that have a List Control inside.
I would like to receive the "return key pressed" event, but I don't see how to do this.
I use the LVN_KEYDOWN notification but it detects all the pressed keys exception for the return key. Confused | :confused:

!?...

If someone have experienced the same problem and/or know how to solve it I would be very appreciated if you reply it for me.

TIA.

Ricardo Beja

Re: How to detect return key in a CListControl?

Paolo Messina29-Sep-01 2:58

Paolo Messina

29-Sep-01 2:58

Try handling the WM_GETDLGCODE message, and add DLGC_WANTRETURN to the default implementation's return value.

Paolo

------
"airplane is cool, but space shuttle is even better" (J. Kaczorowski)

Re: How to detect return key in a CListControl?

Shog⁹29-Sep-01 10:15

Shog⁹

29-Sep-01 10:15

Handling the NM_RETURN notification message should do the trick.

Sockets fail in NT Services

Jason Hihn28-Sep-01 4:05

Jason Hihn

28-Sep-01 4:05

I am writing a service for windows NT. The service itself works fine, but it needs to bind to a socket. The problem is CSocket::Create(port) fails every time.

Does anyone know what is going on?

Thanks ever so much!
-Jason

Re: Sockets fail in NT Services

Anders Molin29-Sep-01 1:10

Anders Molin

29-Sep-01 1:10

I'm not a MFC expert (never uses it), but AFAIK CSocket doesn't work with services...
You should use plain socket (all the WSA* functions) instead of the MFC wrappers...

- Anders

Money talks, but all mine ever says is "Goodbye!"

Re: Sockets fail in NT Services

Daniel Turini29-Sep-01 2:32

Daniel Turini

29-Sep-01 2:32

I've experience that some security accounts under which services run can make them fail when accessing network resources, e.g., LocalSystemAccount.
Try running the service with Administrator to see if the problem is security related.
BTW, what is the value of GetLastError() ?

Furor fit laesa saepius patientia

Re: Sockets fail in NT Services

Giles29-Sep-01 2:40

Giles

29-Sep-01 2:40

CSocket does not work well with NT services.

Check out PJ Naughters class library, which has a number of classes that are derived from his own CSocket class for use with NT services.

http://www.codeproject.com/library/pj.asp

I've used them quite a bit to get me out of the same situation.

Hope this helps,

Giles

Re: Sockets fail in NT Services

CTI29-Sep-01 2:43

CTI

29-Sep-01 2:43

Did you call AfxSockInit befofre using CSocket?
Also, you may have problem making CSocket work correctly because your service is a console application.

If you can make your code work in a regular MFC program (outside an NT service), then this tool by Xiangyang Liu might help you.

Good luck.

Calling HtmlHelp() from dialog fails

Roger Scudder28-Sep-01 4:04

Roger Scudder

28-Sep-01 4:04

When I try to launch the HtmlHelp API function from a dialog box the window seems to be created but it is not shown. After that I have lost control of the help window and can no longer launch it from other parts of the program.

The program is an MFC Dialog app. I can successfully launch the help window from the main dialog. I'm only having trouble from a child modal dialog.

Here's how I am calling the function...

HWND hwnd = HtmlHelp(::GetDesktopWindow(),
".\\MyProgHelp.chm", HH_DISPLAY_TOPIC, NULL);

Thanks for any help!

Window opaquenes

Per28-Sep-01 3:56

Per

28-Sep-01 3:56

Hi
Does anybody know if there is a way to control how opaque a window is?
Could I make a window e.g. 50% opaque or at least make an image in a window 50% opaque?

Thanks in advance.

/Per

Re: Window opaquenes

Christian Graus29-Sep-01 21:10

Christian Graus

29-Sep-01 21:10

You'll need the platform SDK and Windows 2000 ( or XP, I guess ). I forget the call, but I can look it up for you if you haven't found it.

Christian

As I learn the innermost secrets of the around me, they reward me in many ways to keep quiet.

Men with pierced ears are better prepared for marriage. They've experienced pain and bought Jewellery.

Re: Window opaquenes

Michael Dunn29-Sep-01 21:39

Michael Dunn

29-Sep-01 21:39

This oughta do it

DWORD dwExstyle = GetWindowExStyle(hwnd);
 
  SetWindowLong ( hwnd, dwExstyle|WS_EX_LAYERED );
  SetLayeredWindowAttributes ( hwnd, 0, 128, LWA_ALPHA );

--Mike--
http://home.inreach.com/mdunn/
Trillian: What are you supposed to do with a manically depressed robot?
Marvin: You think you've got problems. What are you supposed to do if you are a manically depressed robot?

Add item dynamically in SnapIn

28-Sep-01 3:50

I would like to know how to add dynamically nodes to a parent item from a context menu.

From a choice in the context menu of the static node, the administrator can add an element in the scope pane.
I tried from the function "OnMenuCommand(IConsole *pConsole, long lCommandID)", to add a children but I did not make a success..

Note: I don't use ATL. Only COM and MFC.

Thank you for your help....

extracting email addresses from Microsoft addressbook

Kuniva28-Sep-01 3:07

Kuniva

28-Sep-01 3:07

hello, i'm making a multifunctional addressbook. But nobody would use it if you'd first have to type all of your email addresses and stuff from your addressbook to the program. So i need a way to extract the emailaddresses and possibly other data from the microsoft address book automatically( you know the one that outlook express uses too)

Thanx Smile | :)

T.

Kuniva

Want, take, have.

Re: extracting email addresses from Microsoft addressbook

Oscar Vazquez28-Sep-01 4:22

Oscar Vazquez

28-Sep-01 4:22

Look at this in MSDN, it's a hole API implementation of an Address Viewer
Address Book Viewer Platform SDK: MAPI

about member variable

Gérald Mercet28-Sep-01 3:00

Gérald Mercet

28-Sep-01 3:00

In my app i declare a pointer as a member variable(double *pTab;). This pointer will be used as a pointer on an array of double. In one of the member function, i want to do some calculation which do affectation like that:
for(i=1;i<=n;i++)
{
*(pTab+i)=Value_i;
}
I don't want that this function return value so i decide it will be type "void".
And now i want to use this function in another member method. So, if i call the first function, i would like to know if i will be able to get one of specific value of the array.

For example, could i just return the value *(pTab+i2)?

thanks in advance for your help

gerald

QoS

gugouo28-Sep-01 2:19

gugouo

28-Sep-01 2:19

I have to computer connected use line directly without any hub and switch.
These computer all have 3c509-TX network adartpter. I set both 802.1p and flow control enabled in network setting.
I want to know wheather I can test GQoS API in winsock2 in this situation.
Can you give me some help?
How to test GQoS API in winsock2?
How to understand QoS template such as g711?
Thanks very much!!!! Confused | :confused:

Re: Check MSDN Magazine!

Masaaki Onishi28-Sep-01 7:19

Masaaki Onishi

28-Sep-01 7:19

Hello, the codegurus around the world.;)

Check this.
MSDN Magazine April issue:

Winsock 2: QoS API Fine-Tunes Networked App Throughput and Reliability
http://www.msdn.microsoft.com/msdnmag/issues/01/04/QOS/QOS.asp Cool | :cool:

Have a nice day!

-Masaaki Onishi-

Killer App

Michael Martin28-Sep-01 2:09

Michael Martin

28-Sep-01 2:09

I want a Killer App that will make me rich and famous and get me all the girls. Can someone write it for me? Big Grin | :-D

Michael Martin
Pegasystems Pty Ltd
Australia
martm@pegasystems.com
+61 413-004-018

"Don't belong. Never join. Think for yourself. Peace"
- Victor Stone

Re: Killer App

Michael P Butler28-Sep-01 2:34

Michael P Butler

28-Sep-01 2:34

Here's a starting point for you. Bill Gates will pay you a lot of money for this. I'd forget about the money and fame, just ask for the girls. Smile | :)

int main()
{
   if(IsLinuxInstalled())
   {
     DeleteLinux();
     InstallWindowsXP();   
   }
}

Michael

Re: Killer App

Michael Martin28-Sep-01 4:09

Michael Martin

28-Sep-01 4:09

That's a good start but it needs some bells and whistles if I'm going to sell it to Bill. Can you add them for me?

Is Bill the man to see for the girls?

Michael Martin
Pegasystems Pty Ltd
Australia
martm@pegasystems.com
+61 413-004-018

"Don't belong. Never join. Think for yourself. Peace"
- Victor Stone

Re: Killer App

Michael P Butler28-Sep-01 4:25

Michael P Butler

28-Sep-01 4:25

int main()
{   
  if(IsLinuxInstalled())   
  {
     for(int nLoop = 0; nLoop < 25; nLoop++)
       PlayBell(nLoop);

     DeleteLinux();
     InstallWindowsXP();      

     SoundWhistle();
  }

  return 1;
}

>Is Bill the man to see for the girls?

Sorry, I was getting confused between Bill Gates and Bill Clinton. See Clinton for the girls, Gates for the money. Don't forget to remove the stains afterwards though. Smile | :)

Michael

Color Scroll Bar for TreeView

Matt Plaxton28-Sep-01 1:42

Matt Plaxton

28-Sep-01 1:42

Hi,

Does anyone know if there is a way to add a flat, coloured scroll bar instead of the default grey, 3D one to a TreeView/TreeCtrl ?

I've tried loads of things such as superclassing as well as trying to capture the WM_CTLCOLORBTN/WM_CTLCOLORSCROLLBAR message but all to not avail. The GetScrollBarCtrl method always returns NULL for this type of view as well.

I've even tried capturing the WM_HSCROLL event in OnHScroll but the value of the CScrollBar* parameter returned by this is always NULL so you can't get a handle to it for subclassing.

Any help would be greatly appreciated,
Thanks,
Matt Confused | :confused:

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