C / C++ / MFC Discussion Boards

Re: setting focus to an editbox on a modal dlg, when the dlg is spawned

peterchen10-Jul-02 3:30

peterchen

10-Jul-02 3:30

please read:
>>
m_edit1.SetFocus();
return TRUE; // return TRUE unless you set the focus to a control
<<

Wink | ;)

We are ugly but we have the music Leonhard Cohen [sighist]

Wow! Thanks a million! SetFocus() works!

ns10-Jul-02 3:45

10-Jul-02 3:45

I'm going to start reading the comments from now on! THanks so much for pointing me to it...

ns

Getting the process listening on a specific TCP port

Thomas Freudenberg10-Jul-02 2:55

Thomas Freudenberg

10-Jul-02 2:55

Hi all.

Since we have written our own web server, our setup has to detect if there is already a application listening on port 80, so we can notify the user about the conflict. How can I get this information?

Regards
Thomas

Sonork id: 100.10453 Thömmi

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Re: Getting the process listening on a specific TCP port

Brian Azzopardi10-Jul-02 3:06

Brian Azzopardi

10-Jul-02 3:06

try bind()ing to the port and if the call fails then something is already on that port. u can however set a socket option to reuse it

bibamus, edamus, cras moriemur [eat, drink, for tomorrow we die]

Re: Getting the process listening on a specific TCP port

Thomas Freudenberg10-Jul-02 3:12

Thomas Freudenberg

10-Jul-02 3:12

Brian Azzopardi wrote:
try bind()ing to the port and if the call fails then something is already on that port. u can however set a socket option to reuse it

I already know this. But I want to know the process which uses this port. Thank you anyway Wink | ;)

Regards
Thomas

Sonork id: 100.10453 Thömmi

Re: Getting the process listening on a specific TCP port

orcun colak10-Jul-02 5:51

orcun colak

10-Jul-02 5:51

I also would like to learn how to do it. I am trying to show the ports in use and which processes are using them.

Orcun Colak

Re: Getting the process listening on a specific TCP port

Thomas Freudenberg10-Jul-02 6:18

Thomas Freudenberg

10-Jul-02 6:18

I've only found a solution for Windows XP: AllocateAndGetTcpExTableFromStack in iphlpapi.dll (found in the sources of Netstatp at Sysinternals)

Regards
Thomas

Sonork id: 100.10453 Thömmi

destroying one view from another view - beginner

ns10-Jul-02 2:38

10-Jul-02 2:38

I see hoew to get the oh-so useful document pointer a lot, but if I want to destroy view2 from view1, how do I do that? If I had launched a dialog from my view, then I'd have the name like:

CMyDialog cDlg;

etc

cDlg.DestroyWindow.

But I didnt spawn view2 from view1, so how to I get its name or pointer to call DestroyWindow on it?

Thanks,
ns

Re: destroying one view from another view - beginner

Mike Upton10-Jul-02 4:43

Mike Upton

10-Jul-02 4:43

You still need to go via that magic document. The document keeps pointers to all its views, which you can get access to via CDocument::GetFirstViewPosition() and CDocument::GetNextView() (which uses MFC's less than intuitive POSITION based iteration method - look the two methods up in the MSDN Library for details).

You can either call those methods from one view (using the view's pointer to its document) to destroy the other view, or you can define a method in your document which you call from one view to close the other. I prefer the second method, because it means the views don't have to know too much about the views they coexist with.

"We are the knights who say Ni" _{(The Knights Who Say Ni)}

HOWTO: change .exe icon in Win32 apz (NOT MFC, C compiler)

BlackSmith10-Jul-02 2:36

BlackSmith

10-Jul-02 2:36

I've created Win32 app (not console app) n' I wanna change the EXE icon
to one of my own.
Help, por favor.
10XXXXXXX x 2

--BlackSmith--

"With the help of all mighty", 2001, Me.

Re: HOWTO: change .exe icon in Win32 apz (NOT MFC, C compiler)

Rage10-Jul-02 5:37

Rage

10-Jul-02 5:37

I´d try this :

// Win32 API:
HICON hLargeIcon = LoadIcon ( hinstYourModuleInstance, 
                              MAKEINTRESOURCE(IDI_NEW_ICON) );
HICON hSmallIcon = (HICON) LoadImage ( hinstYourModuleInstance, 
                                       MAKEINTRESOURCE(IDI_NEW_ICON),
                                       IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR );
 
  SendMessage ( hwndYourWindow, WM_SETICON, ICON_BIG, hLargeIcon );
  SendMessage ( hwndYourWindow, WM_SETICON, ICON_SMALL, hSmallIcon );

taken from this FAQ.

~RaGE();

Re: HOWTO: change .exe icon in Win32 apz (NOT MFC, C compiler)

Roger Stewart10-Jul-02 5:58

Roger Stewart

10-Jul-02 5:58

During the initialization of your app's main window, you can load an icon from your resources like so:

<br />
WNDCLASS  wc;<br />
	<br />
wc.lpfnWndProc		= (WNDPROC)MainWndProc; <br />
wc.lpszClassName	= _T("MyAppClass");<br />
...<br />
wc.hIcon		= LoadIcon( hInstance, IDI_APPICON );<br />
...<br />
<br />
// Register the main windows class settings.<br />
if ( ! RegisterClass( &wc ) )<br />
   return FALSE;<br />

Roger Stewart
"I Owe, I Owe, it's off to work I go..."

Re: HOWTO: change .exe icon in Win32 apz (NOT MFC, C compiler)

BlackSmith10-Jul-02 13:38

BlackSmith

10-Jul-02 13:38

My app has no windows. I just want to change the default icon of the apps
EXE file. That's it.
I dare you all to solve this puzzle the SDK's way!

10XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

--BlackSmith--

"With the help of all mighty", 2001, Me.

Re: HOWTO: change .exe icon in Win32 apz (NOT MFC, C compiler)

Roger Stewart10-Jul-02 14:20

Roger Stewart

10-Jul-02 14:20

Add a resouce file (*.rc) to your project. Insert an icon (the one you want to use). Compile your application. If you import more than one icon, the compiler will arrange the icon resource ID's in alphabetical order. The first icon will then be associated with the EXE.

BlackSmith wrote:
I dare you all to solve this puzzle the SDK's way!

No SDK involved!!

Roger Stewart
"I Owe, I Owe, it's off to work I go..."

updateAllViews() - quick question

ns10-Jul-02 2:15

10-Jul-02 2:15

Hello,

If I want all views to update, its UpdateAllViews(NULL);

All other views but the sender -- UpdateAllViews(this);

What do I do if I want to update only my current view and none of the others?

Thank you very much,
ns

Re: updateAllViews() not in class wizard??

ns10-Jul-02 2:26

10-Jul-02 2:26

I was expecting to see the function UpdateAllViews in the classwizard entries for my doc class. There are functions like: setPathName, setTitle, GetNextView etc but not UpdateAllViews. Since its a CDocument object I can look in the MSDN for members, but why doesnt the class wizard have a list of all member functions, not just some? Why are the ones that are there, there?

Thanks,
ns

Re: updateAllViews() - quick question

peterchen10-Jul-02 4:03

peterchen

10-Jul-02 4:03

call OnUpdate directly
(UpdateAllViews just calls OnUpdate for all views 8except the sender (if given)))

We are ugly but we have the music Leonhard Cohen [sighist]

Sockect Programming in C

vin10-Jul-02 1:50

vin

10-Jul-02 1:50

Hi,
Can any one give me a link to any article on Socket programming in C++(or C). Or any book which covers this topic. I want to do Socket programming in C.

Kindly help...

Tnx

vini

Re: Sockect Programming in C

Nish Nishant10-Jul-02 2:00

Nish Nishant

10-Jul-02 2:00

vin wrote:
Can any one give me a link to any article on Socket programming in C++(or C).

http://www.codeproject.com/internet/winsockintro01.asp
http://www.codeproject.com/internet/winsockintro02.asp
http://www.codeproject.com/internet/winsockintro03.asp

Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: Sockect Programming in C

Brian Azzopardi10-Jul-02 3:10

Brian Azzopardi

10-Jul-02 3:10

Richard Stevens has published the 'bible' on socket programming. Get TCP/IP Illustrated Volume 1 (I've got all 3 volumes). Easy to understand and a great book to learn TCP/IP network coding.

HTH

bibamus, edamus, cras moriemur [eat, drink, for tomorrow we die]

Re: Sockect Programming in C

Marshall10-Jul-02 3:15

Marshall

10-Jul-02 3:15

Brian Azzopardi wrote:
Richard Stevens has published the 'bible' on socket programming.

I agree. His books are outstanding. Another one that has been very helpful to me is Network Programming for Windows by Anthony Jones and Jim Ohlund.

marshall

If you continue to do the same things you always did,
don't be surprised if you get the same results you always got.

list control with checkboxes - newbie

ns10-Jul-02 1:37

10-Jul-02 1:37

By default, clicking on the item text in a listcontrol with extended style checkboxes, does not set the check in the checkbox. How do I make it so that when I click on the name, the check is set and the app responds as if to an actual direct check in the checkbox?
Thank you.
ns

Re: list control with checkboxes - newbie

Mike Upton10-Jul-02 4:08

Mike Upton

10-Jul-02 4:08

You can't make the list control do that automatically (there's no style bit or extended style bit to do it) so you'll have to add some code.

You need a notify handler for NM_CLICK. If the user left clicks on the icon or the first column label, the NMITEMACTIVATE.iItem member will contain the index of the item clicked on, so you can then set the check state of the item.

In MFC, your code will look something like this, assuming you're handling the notification in the parent window of the list control:

//In the message map of the parent window
ON_NOTIFY(NM_CLICK, ID_YOUR_LIST_CONTROL, OnClickYourListControl)

...

//Handler function
void OnClickYourListControl(NMHDR* pNMHDR, LRESULT* pResult)
{
  NMITEMACTIVATE* pItem = (NMITEMACTIVATE*)pNMHDR;

  //If the user clicked on the icon or the first column, iItem is valid
  if (pItem->iItem > -1)
  {
    //You'll probably have a pointer to the list control, but if not...
    CListCtrl* pList = (CListCtrl*)CWnd::FromHandle( (pItem->hdr).hwndFrom );
    ASSERT(pList!=NULL);

    //Toggle the check state
    pList->SetCheck( pItem->iItem, !pList->GetCheck(pItem->iItem) );
  }

  //Doesn't matter what you do with pResult
  *pResult=0;
}

If you're handling the notification in the list control itself, you'll need to use the reflected message instead, via the ON_NOTIFY_REFLECT macro.

"We are the knights who say Ni" _{(The Knights Who Say Ni)}

Re: list control with checkboxes Thanks!!!

ns10-Jul-02 4:24

10-Jul-02 4:24

Thanks so much for the direction. I am trying it out. For the checkboxes I have:

m_list3.SetExtendedStyle(LVS_EX_CHECKBOXES);

where m_list3 is a listcontrol.

Thanks a million again,
ns

starting the MDI app with two views - beginner

ns10-Jul-02 1:34

10-Jul-02 1:34

Hi,

I need to have the MDI MFC app start with two different views already populated with data. I only have one document. How do I code my app so that when it starts, both the views will be instantiated?
Thank you.

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