C / C++ / MFC

Server and client programming

16-Aug-05 18:04

cupdoze wrote:
have them run a program when the run button is clicked

If that's the bit you're stuck on, the answer is ::ShellExecute.

Christian Graus - Microsoft MVP - C++

Re: WinExec

ThatsAlok16-Aug-05 19:49

ThatsAlok

16-Aug-05 19:49

cupdoze wrote:
have found that WinExec is no longer used/supported.

In continuation With Mr. Graus,
you can refer this article too.....
http://www.codeproject.com/system/newbiespawn.asp[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV

Member 216100416-Aug-05 15:45

Member 2161004

16-Aug-05 15:45

can give some example of source code or project to write the server and client programming

Re: Server and client programming

Christian Graus16-Aug-05 16:24

Re: Server and client programming

16-Aug-05 16:24

I searched this site by typing 'client server' in the search dialog you can see just below the Code Project logo above, and found this[^].

Christian Graus - Microsoft MVP - C++

Member 216100416-Aug-05 23:24

Member 2161004

16-Aug-05 23:24

After downloaded the server and client source code, I do not know how to build 2 project that one is for client and another is for server. can give some guide to build it? I really weak in computer programming and never touch Visual C++ before.. Confused | :confused:

Re: Server and client programming

Christian Graus17-Aug-05 11:42

17-Aug-05 11:42

Are you being asked to do this by your boss or your teacher ? It's a really significant task if you've never used C++ before, if you can abandon it for something simpler, that would be sensible.

Why can't you build it ? What happens ? All you need to do is open the project and choose 'build', assuming you have the right version of VC++ ( I'm not sure which the project uses, actually )

Christian Graus - Microsoft MVP - C++

Menu Question (fixed)

LighthouseJ16-Aug-05 15:42

LighthouseJ

16-Aug-05 15:42

It's the inevitable...

I wrote a menu in the resource file and I entered it into the CreateWindowEx function call and it shows up. I also added code to the message handler to catch clicks. However, when I click items, nothing happens. Here's the handler:

switch (Msg) {<br />
     case WM_COMMAND: {<br />
          HandleMenuFunctions (hWnd, wParam);<br />
          return 0;<br />
     } break;<br />
     default: {<br />
          return DefWindowProc (hWnd, Msg, wParam, lParam);<br />
     } break;<br />
}

HandleMenuFunctions is just a function that has another switch to do different things based on the menu item selected:

void HandleMenuFunctions (HWND hWnd, WPARAM wParam) {<br />
     switch (LOWORD(wParam)) {<br />
          case ID_FILE_QUIT: {<br />
               MessageBox (hWnd, "Posting Quit Message now", "Notice", MB_ICONINFORMATION);<br />
               PostQuitMessage(0);<br />
          } break;<br />
          default: { MessageBox (hWnd, "Encountered unknown menu ID", "Notice", MB_ICONSTOP); } break;<br />
     }<br />
}

(excuse that smiley face, that should be a PostQuitMessage(0); call.)

Also, when I go to click the menu, it only shows me the popup menu under File every other time. The other times I click, the menu just loses focus. I don't know if that's important or not. Thanks in advance.

edit: I put breakpoints on that first WM_COMMAND case to see if the message is ever captured and it isn't. Either I'm catching the wrong message or something is wrong with the menu. I noticed that there are ways to declare a menu when I register the class in WNDCLASSEX and also when I call CreateWindowEx. I tried only declaring the menu when I register the class and the menu doesn't show, but when I declare it only in CreateWindowEx, it shows up. That might be important too.

solution: I fixed the problem, it had to do with my main message loop, it also fixed the thing where the menu loses focus. I removed the PeekMessage call and just let GetMessage get the message. Here's what I ended up with:

while (GetMessage(msg, NULL, 0, 0)) {<br />
     if (msg->message == WM_QUIT) {		// exit main loop on WM_QUIT<br />
          return ((int) msg->wParam);<br />
     }<br />
     TranslateMessage(msg);<br />
     DispatchMessage(msg);<br />
}<br />

Error

Member 216100416-Aug-05 15:23

Member 2161004

16-Aug-05 15:23

What does this error mean and how to solve it?

fatal error C1010: unexpected end of file while looking for precompiled header directive

Re: Error

Weiye Chen16-Aug-05 16:02

Weiye Chen

16-Aug-05 16:02

If you are using mfc, you need to include "stdafx.h" as the first in your cpp files.

<font=arial>Weiye Chen
Life is hard, yet we are made of flesh...

Re: Error

Christian Graus16-Aug-05 16:26

how to accessing Paradox use ADO

16-Aug-05 16:26

To elaborate on the prior answer - the stdafx.h file is included BEFORE any other header in every file of a standard MFC project. Any headers you include before stdafx will be ignored. This most typically becomes a problem when you import a non MFC C++ file into your project. It's C++, the compiler can handle it, except that it's expecting to see standard headers. The stdafx header is full of includes, and if you don't need it for that file, or for any files in general, you can change your project settings from using standard headers, to a setting where you specify that the file is stdafx.h, and if you don't include it in a source file, the compiler will just allow it, and compile that file without using the standard header.

Christian Graus - Microsoft MVP - C++

ebinaini16-Aug-05 14:56

Re: how to accessing Paradox use ADO

16-Aug-05 14:56

can someone plz give me a tutorial on how to accessing Paradox useing ADO.
i'd like to do it completely in Win32/SDK also Confused | :confused:

Thanks In Advance,
bin e

S Douglas16-Aug-05 21:52

S Douglas

16-Aug-05 21:52

Not a tutorial, but here is how to connect to a paradox database.

Driver={Microsoft Paradox Driver (*.db)};DBQ=physical path to .db file;DriverID=26

See this web site for other database connections.
msdn.microsoft.com[^]

There are a couple of tutorials here at Code Project. The listing can be found here.
http://codeproject.com/database/#ADO[^]

Hope this helps...

-------------------------------
DEBUGGING : Removing the needles from the haystack.

Re: how to accessing Paradox use ADO

ebinaini17-Aug-05 15:07

changing what a pushbutton looks like

17-Aug-05 15:07

thanks for your help i will look at the page !!
Wink | ;)

nothing

Tim Zorn16-Aug-05 14:28

Tim Zorn

16-Aug-05 14:28

can someone plz give me a tutorial on how to change a pushbuttons appearance using GDI.
i'd like to do it completely in Win32/SDK also

Thanks In Advance,
Tim Zorn

Christian Graus16-Aug-05 15:03

16-Aug-05 15:03

Basically, you set the control to be owner drawn, then you draw it however you like.

This[^] article may be of some help.

Christian Graus - Microsoft MVP - C++

ebinaini16-Aug-05 19:30

16-Aug-05 19:30

thank you for advance i have change my article.

can you help me?

nothing

Christian Graus16-Aug-05 19:35

16-Aug-05 19:35

What did you want help with ?

Christian Graus - Microsoft MVP - C++

ebinaini16-Aug-05 20:39

16-Aug-05 20:39

this is my code for useing ADO link Paradox DataBase.
but it throw wrong so maybe you can help me.
i will greatly appreciated

BOOL CTM21App::InitInstance()
{

CString connectsource;
_ConnectionPtr pCon;
AfxOleInit();
AfxEnableControlContainer();

pCon.CreateInstance(__uuidof(Connection));

try
{

connectsource.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%d\\work\TM21Vol4\gentan500\Database;Extended Properties=Paradox 4.81;Persist Security Info=False");
pCon->Open((_bstr_t)connectsource,"","",adModeUnknown);

}
catch(_com_error e)
{
AfxMessageBox("open .db wrong");
return FALSE;
}
}

nothing

Christian Graus17-Aug-05 11:39

17-Aug-05 11:39

I'm sorry, I'm really not sure. What's the _com_error you catch, have you looked ?

Christian Graus - Microsoft MVP - C++

Tim Zorn20-Aug-05 12:28

Tim Zorn

20-Aug-05 12:28

how do u do owner-drawn stuff.
i looked at the article u linked to but i didnt understand much of the source

normanS16-Aug-05 21:32

normanS

16-Aug-05 21:32

An alternative to making a fully owner-drawn button, is to put an icon or bitmap on a standard pushbutton.

From a quick look at some old SDK-level code, the code is something like this:

buttonHwnd = CreateWindow("button", "",<br />
WS_CHILD | WS_VISIBLE | BS_ICON | BS_PUSHBUTTON,<br />
ButtonXPos, ButtonYPos, ButtonWidth, ButtonHeight,<br />
hwndMain, (HMENU)buttonId, hAppInst, NULL);

hButtonIcon = LoadIcon(hAppInst, MAKEINTRESOURCE(IDI_ButtonIcon));

SendMessage(buttonHwnd , BM_SETIMAGE, (WPARAM)IMAGE_ICON,<br />
(LPARAM)(HANDLE)hButtonIcon);

Right at the moment I forget what all the parameters are, but if you need help, just ask.

Tim Zorn20-Aug-05 8:41

Tim Zorn

20-Aug-05 8:41

thanks a bunch man. but how do u get it to have text along with an image.
also how do i get the image to stretch across the whole button

normanS21-Aug-05 19:27

normanS

21-Aug-05 19:27

I put bitmaps and icons on the buttons, but the basis was standard Windows pushbuttons. I don't have time to check now, but I think I made the size of the icons / bitmap such that they neatly fitted onto the flat grey foreground of the button. I can't remember what happens if the bitmap or icon is too big for the foreground. I would guess that if the bitmap if too big, you loose the 3D "animation" effect at the edges of the button.

To have text with an image, maybe just include the text in your bitmap / icon.

I will try to have a look at what I did later today (I'm on a course for the next 9 hours.)