C / C++ / MFC Discussion Boards

raghav19725-Jan-05 21:53

raghav1972

5-Jan-05 21:53

Hello I am a beginner to VC++.

I am having two applications server.exe and client.exe.

I want to exchange messages between these. How to do this ?

thanks in advance

regards
Raghavendra H

Re: Message exchange between applications

Yulianto.5-Jan-05 22:44

Yulianto.

5-Jan-05 22:44

You can use socket and sendmessage

<italic>Work hard and a bit of luck is the key to success.

You don`t need to be genius, to be rich.

Re: Message exchange between applications

Martin Koorts6-Jan-05 3:25

Martin Koorts

6-Jan-05 3:25

Hi
If the 2 apps are running on the same machine, you can use SendMessage but the information is limited to what you can squash into the WPARAM and LPARAM values (64 bits in total on 32 bit machine). If you need to exchange more info (most likely), consider a richer typed interface such as COM over memory-mapped files, etc, because it was designed with this scenario in mind.

If you're crossing the network between 2 machines, you're left with IP (TCP & UDP), HTTP (and SOAP/WebServices variants) or again COM (aka DCOM in this capacity, which incidentally runs over IP).
Using VC++;
For IP, you can use Windows Sockets (MFC or Win32 API), as has been suggested.
For HTTP, you can use WinInet (MFC or Win32 API), but this requires an web server (eg. IIS).
For COM, you're best off using ATL.

HTH
Martin

PS: You can use IP between 2 apps on the same machine, but it's arguably too contrived.

about set font

StoreErin5-Jan-05 21:34

StoreErin

5-Jan-05 21:34

Hello,Sir

How to set font of CListCtrl header?

Thank you very mush!

Help

Re: about set font

ThatsAlok6-Jan-05 1:00

ThatsAlok

6-Jan-05 1:00

let IDC_LIST1 is ID of ListCtrl,
You can use this Small Piece of code to set Font
of CListCtrl.

<font color="00ff00">//Font Varible</font>
CFont m_fArial;

<font color="00ff00">
//Create Arial Font
</font>

m_fArial.CreateFont
 (14,0,0,0,FW_BOLD,
  FALSE,FALSE,FALSE,
  DEFAULT_CHARSET,
  OUT_DEFAULT_PRECIS ,
  CLIP_DEFAULT_PRECIS,
  DEFAULT_QUALITY,
  DEFAULT_PITCH,
  "Arial");

<font color="00ff00">
//Get Pointer of ListCtrl
</font>

CListCtrl *m_pList=(CListCtrl*)GetDlgItem(IDC_LIST1);

<font color="00ff00">
//Set Font
</font>

if(m_pList)
   m_pList->SetFont(&m_fArial);

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

Re: about set font

StoreErin6-Jan-05 1:43

StoreErin

6-Jan-05 1:43

Thank you.
but I want to set font in CListCtrl header not item part.
Sorry. My English is very poor.

Help

Re: about set font

Martin Koorts6-Jan-05 3:31

Martin Koorts

6-Jan-05 3:31

Hi
From what I've seen there is inherently only 1 font per list control. I'd consider having an owner-draw list control, with a second font specifically for the header.

HTH
Martin

PS: Your English is fine
Wink | ;-)

Re: about set font

basementman6-Jan-05 5:10

basementman

6-Jan-05 5:10

//CFont Varible
CFont m_fArial;

//Create Arial Font
m_fArial.CreateFont (14,0,0,0,FW_BOLD,  FALSE,FALSE,FALSE,  DEFAULT_CHARSET,  OUT_DEFAULT_PRECIS ,  CLIP_DEFAULT_PRECIS,  DEFAULT_QUALITY,  DEFAULT_PITCH,  "Arial");

//Get Pointer of 
ListCtrlCListCtrl *m_pList = (CListCtrl*)GetDlgItem(IDC_LIST1);

//Set Font
if (m_pList)
   m_pList->GetHeaderCtrl()->SetFont(&m_fArial);

The key here is to get a pointer to CListCtrl's embedded Header control.

onwards and upwards...

Re: about set font

ThatsAlok6-Jan-05 6:39

ThatsAlok

6-Jan-05 6:39

basementman wrote:
if (m_pList)
m_pList->GetHeaderCtrl()->SetFont(&m_fArial);

very very silly mistake by ME.
Thanks for correcting my mistake

"I Think this Will Help"
Alok Gupta
visit me at http://www.thisisalok.tk

Re: about set font

StoreErin6-Jan-05 15:10

StoreErin

6-Jan-05 15:10

It work fine.
Good for you!
Thank you very much! Smile | :)

Help

GDI Object Accumulation

Garth Watkins5-Jan-05 20:41

Garth Watkins

5-Jan-05 20:41

I was playing around with WinXP's task manager when I noticed that some applications never deleted some of their GDI objects. i.e. I ran a standard MFC MDI app, opened a document, took note of the GDI Object count for the app and then closed the document again and noted that the GDI object count did not return to it's initial value before the document was opened. I then open the document again and again and noted that the GDI object count climbed higher and higher. All the apps I tried at first were all MFC MDI apps (including Spy++) and they all showed the same symptoms. I also tried Visio which didn't seem to have this problem.

Could this be a bug in MFC or is there something I'm missing.

Inserting Row thru OLEDB

Chitrack5-Jan-05 20:19

Chitrack

5-Jan-05 20:19

I am having a database application which talks to any kind of databse. I tried to fetch the data from a table and insert into another. I am new to OLEDB. I am able to insert a interger value but not a string value. I am using CDynamicAccessor class. I read in MSDN that there shud be a special handling for string data which am nt able to do. Please help me out.

Thanks in Advance

Re: Inserting Row thru OLEDB

IsaacLitingjun5-Jan-05 21:22

IsaacLitingjun

5-Jan-05 21:22

i suggest you can take a look at this article, it's quite good!

http://www.codeproject.com/database/caaadoclass1.asp[^]

Best Wishes, Smile | :)

- - - - - - - - - - - - - - - - - - - - - - - - - -
Many nights we prayed with no proof anyone could hear, we were moving moutains long before we knew we could !
Yet now i'm standing here, although we know there's much to fear, hope seems like summer bird too swiftly flown away ...

There can be miracles! When you believe, though hope is frail, it's hard to kill !
Who knows what miracles, you can achieve! When you believe, somehow you will ...

YOU WILL WHEN YOU BELIEVE

Re: Inserting Row thru OLEDB

Chitrack5-Jan-05 21:38

Chitrack

5-Jan-05 21:38

I am using OLEDB consumer template classes not ADO.

Hello! EveryOne!!

lzzqqq5-Jan-05 19:46

lzzqqq

5-Jan-05 19:46

Hello Everyone!
I am a chinese programer,and my english is poor.
so i need your help everyon here at the later days.
and i really want to make friend with you!!
can you tell me where are you from?whitch controy?and your email?
i will study with everyone at the follow days.
thanx.

Re: Hello! EveryOne!!

IsaacLitingjun5-Jan-05 21:31

IsaacLitingjun

5-Jan-05 21:31

Welcome here, i'm Chinese too from Wenzhou and now worked at Hangzhou.

This is quite a good place! Enjoy yourself. Wink | ;)

Re: Hello! EveryOne!!

toxcct6-Jan-05 3:25

toxcct

6-Jan-05 3:25

hi,

lzzqqq wrote:
I am a chinese programer

ok, i'm a french one.

lzzqqq wrote:
my english is poor.

the most important is not your "poor" english, but what you try to say, and what we understand about it.

lzzqqq wrote:
i need your help

why not... Big Grin | :-D

lzzqqq wrote:
can you tell me where are you from

France, i already said it previously in this post.
For the other CPians, you could have a look a Who's who[^] page...
but if you want to know everyone here, you will have to spend much time on that pretty site, 'cause at the moment i write this, we are about a little 1,633,561 members... Blush | :O

good luck !!!

lzzqqq wrote:
and your email?

nop, sorry, but why not to post on personal homepage[^]s for example ???

last thing. you posted this on Visual C++ discussion board. why don't you try on The Lounge[^], or better, on The Soapbox[^] instead ??? Wink | ;)

anyway, see you Cool | :cool:

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: passing parameters to Winexec() command help?

lzzqqq5-Jan-05 19:24

lzzqqq

5-Jan-05 19:24

//Try the follow code:
//IDC_EDIT1 is your CEdit control's resource ID. Laugh | :laugh:

void CmscprojDlg::OnBnClickedEdit()
{
char szFileName[MAX_PATH]={NULL};
GetDlgItem(IDC_EDIT1)->GetWindowText(szFileName,MAX_PATH);
char szCommand[1024]={"NOTEPAD.EXE "};
strcat(szCommand,szFileName);
WinExec(szCommand,SW_SHOW);
}

Re: passing parameters to Winexec() command help?

lzzqqq5-Jan-05 19:28

lzzqqq

5-Jan-05 19:28

the szCommand run like
"NOTEPAD.EXE C:\china.txt"

plot graphs

RealCoder5-Jan-05 19:05

RealCoder

5-Jan-05 19:05

How can I plot graphs using VC++?

Re: plot graphs

jan larsen7-Jan-05 2:39

jan larsen

7-Jan-05 2:39

By buying some graph ActiveX components, or perhaps download some free graph ActiveX components or, dare I say it?, write your own graph ActiveX component.
Google is your friend, if you lack imagination try: "+'Graph'+'ActiveX'+'download'".
There are probably also some free components here at CP in the articles fora.

"After all it's just text at the end of the day. - Colin Davies

"For example, when a VB programmer comes to my house, they may say 'does your pool need cleaning, sir ?' " - Christian Graus

how to send a Alt+A message to a window

Tony He5-Jan-05 18:26

Tony He

5-Jan-05 18:26

I want to send a Alt +A message to a Window, like this:

dwTID = GetWindowThreadProcessId(handle,&dwPID);<br />
::PostThreadMessage(dwTID, WM_SYSKEYDOWN, 'A', 0x20000001);<br />
::PostThreadMessage(dwTID, WM_SYSKEYUP, 'A', 0x20000001);

it can't work. when i chang the prog like this

::SetForegroundWindow(handle);<br />
keybd_event(VK_MENU, 0, KEYEVENTF_EXTENDEDKEY | 0, 0);<br />
keybd_event('A', 0, KEYEVENTF_EXTENDEDKEY | 0, 0);<br />
keybd_event(VK_MENU, 0, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);<br />
keybd_event('A', 0, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);

it 's ok.why?

and i want't to put the window on foreground,how to do it?

thanks alot!

Re: how to send a Alt+A message to a window

lzzqqq5-Jan-05 19:04

lzzqqq

5-Jan-05 19:04

i think that the message can't translate data with two process. so the first method is failed.

Sending a Memory Image from VC++ to Matlab

Oscar Ramírez (LONEWOLF4)5-Jan-05 18:08

Oscar Ramírez (LONEWOLF4)

5-Jan-05 18:08

Hi, i'm working in a vision system (artificial vision with a webcam), and i have de adquisition module writed in visual C++ 6.0, and the treatment processes of images writed in matlab. I've already include de matlab source in the visual c++ project, but i need to send the image in memory (a buffer) to the matlab module.

does anyone know what kind of transformation do i must do to my buffer?

or can you explain me how "matlab to VC's traslated source" manipulate the images when the "imread" command were used? D'Oh! | :doh:

any help will be welcome.

thanks

Keep Working!
=============================
LONEWOLF4
Oscar Ramírez Torres Oscar
Cd. Madero, Tamaulipas, México
LW4_2004@hotmail.com
=============================

How can i check the internet connection?

utkumanyaksalak5-Jan-05 13:53

utkumanyaksalak

5-Jan-05 13:53

How can i check the internet connection, also how can i get recieved bytes from int. connection??

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.