a question or 2 - C / C++ / MFC Discussion Boards

7-Dec-01 17:55

First, does everyone use the wizards to start off a project. They seem a little annoying and create alot of code that is hard to follow.
And second, is there a simple little hello world program out there that uses MFCs
Cheers

Re: Just a couple of questions

Nish Nishant7-Dec-01 18:36

Nish Nishant

7-Dec-01 18:36

Hope this helps...
Nish

#include "stdafx.h"
#include <afx.h>
#include <afxwin.h>  
#include <afxext.h>  
#include <afxdtctl.h>

CWinApp theApp;

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
	int nRetCode = 0;

	if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
	{
		
		AfxMessageBox("somethin screwed up :-(");
		nRetCode = 1;
	}
	else
	{		
	
		AfxMessageBox("Cool, we are runnin on MFC");
	}

	return nRetCode;
}

Re: Just a couple of questions

Rick York7-Dec-01 19:44

Rick York

7-Dec-01 19:44

Personally, I like to put all of those afx headers in my stdafx.h file. But that's just me being me.

Smile | :)

Re: Just a couple of questions

Nish Nishant7-Dec-01 19:55

Nish Nishant

7-Dec-01 19:55

yeah,
But I put them like that so he finds it easier to understand.
In this case stdafx.h contains only one line

#pragma once

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Re: CP script is messin up my code :-)

Nish Nishant7-Dec-01 18:39

Nish Nishant

7-Dec-01 18:39

Hey

I guess you mus have seen that there are some smilies in the other post. donno how to disable them Smile | :)

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Re: Just a couple of questions

Christian Graus8-Dec-01 0:48

Christian Graus

8-Dec-01 0:48

Start with a dialog based app, there is a lot less to follow. Make the OnPain function in the dialog look like this:

if (IsIconic())
{
    CPaintDC dc(this); // device context for painting

    SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

    // Center icon in client rectangle
    int cxIcon = GetSystemMetrics(SM_CXICON);
    int cyIcon = GetSystemMetrics(SM_CYICON);
    CRect rect;
    GetClientRect(&rect);
    int x = (rect.Width() - cxIcon + 1) / 2;
    int y = (rect.Height() - cyIcon + 1) / 2;

    // Draw the icon
    dc.DrawIcon(x, y, m_hIcon);
}
else
{
    CPaintDC dc(this); // device context for painting

    dc.TextOut(10, 10, "Hello World");

    CDialog::OnPaint();
}

I'm not sure if you need the call to the base class, so I left it in, although removing it appears to do no harm. There's your hello world, and the simplest MFC app you'll get outside of using MFC in a console app.

Christian

After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001

Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now

Re: Just a couple of questions

Alvaro Mendez11-Dec-01 6:17

Alvaro Mendez

11-Dec-01 6:17

I don't know about everyone, but I always use wizards to begin my projects. They save a lot of time and get me going on the functionality right away. Like yourself, in the beginning I found it a bit hard to follow the generated code, but it was only a matter of time before I became familiar with it.

As far as a little Hello World program, again use the AppWizard to create a "Win32 Console Application". Then tell it you want to support MFC. Presto! See? I told wizards are great. Smile | :)

Regards,
Alvaro

a question or 2

Cnoob7-Dec-01 16:34

Cnoob

7-Dec-01 16:34

first i'd like to ask if anyone here is a self taught vc6 programmer. as in no schools just books and stuff like that.

i'm finding that the prices for tuition at any school for a programming course is way out of my budget. i live canada so keep that in mind. next question:

gamedev says to start with a simple tetris like game to understand how a game is put together. i have a book that explains a breakout game and my logic tells me that programming a game like that would be easier then tetris. maybe i'm wrong. anyhoo could someone point me to some source files or code for a tetris like game so i could compare code and possibly understand.
i have to take the self taught book method.

Re: a question or 2

Nish Nishant7-Dec-01 17:08

Nish Nishant

7-Dec-01 17:08

You can teach yourself C++. In fact that's the only way I guess. Even if you have gone for some private course, you'd need to do a lot on your own in the way of self-teaching and books and MSDN and code-project before you can be a moderately competent C++ programmer

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Re: a question or 2

Not Active7-Dec-01 17:16

Not Active

7-Dec-01 17:16

I had one basic C++ course in school but for the most part I've learned though books and experience.

Re: a question or 2

Christian Graus8-Dec-01 0:52

Christian Graus

8-Dec-01 0:52

Yes, I'm completely self taught and everyone at work, although they went to uni, got there knowing a lot from teaching themself. To survive in IT you need to *keep* learning your entire career, so if you can't teach yourself, you're kinda screwed.

I believe that there is a Tetris game here on CP. Yes, Pong is probably easier still, although not by much. Calculating the bounce of the ball convincingly is probably more painful than figuring if a Tetris block fits in a certain space.

A game is always a big thing to start with though, you need graphics, you need sound, you'll probably want to use DirectDraw, etc. You're better off IMO trying some non game stuff first. To give you an idea, I did a fair bit of non-game stuff to learn and when I did try a game, I was able to do a reasonable Asteroids. Had I started with that, I'd probably have given up in despair, but I kenw how a lot of other stuff fit together so I was able to concentrate on graphics and physics.

Christian

After all, there's nothing wrong with an elite as long as I'm allowed to be part of it!! - Mike Burston Oct 23, 2001

Sonork ID 100.10002:MeanManOzI live in Bob's HungOut now

Re: a question or 2

Michael P Butler8-Dec-01 7:37

Michael P Butler

8-Dec-01 7:37

I'm a self taught programmer. However I had the easier route of moving from Sinclair Basic, to Turbo Pascal, to Turbo C, to Borland C++ and then onto Visual C++. It is a lot easier if you start at the bottom, sadly that isn't so easy nowadays. I remember my early days of the move from Pascal to C. C was a very scary language to me back then.

My advice, stick with the breakout program. Breakout is a much simplier app than Tetris. However learning to program by writing a game is very difficult, especially a Windows game if DirectX is involved.

Feel free to ask questions though, that is the best way to keep on learning.

Michael Smile | :)

Re: a question or 2

Matt Newman8-Dec-01 9:06

Matt Newman

8-Dec-01 9:06

If you want to start with C++ start with Sams Teach Yourself C++ in 24 Hours Second Edition. For game programming I would look for a Tearch Yourself DirectX. Another good book that teaches MFC is Teach Yourself Visual C++ 6 in 21 Days. If you can find it look for Game Programming Starter Kit from Macmillan Software 4.0 gives you VC++ in 21 and DX in 24 but 5.0 is the current version. It also has some game programming tools.

-Matt Newman
-Matt Newman

WM_CLOSE or WM_DESTROY

Steve L.7-Dec-01 16:15

Steve L.

7-Dec-01 16:15

whats the difference?

<marquee>click -> A Sign of Boredom <- click

Re: WM_CLOSE or WM_DESTROY

Nish Nishant7-Dec-01 17:10

Nish Nishant

7-Dec-01 17:10

You send/post WM_CLOSE to a window when you want to close it. Normally the WM_CLOSE handler then calls DestroyWindow which sends a WM_DESTROY message to the window. later the WM_NCDESTROY message is sent. This is the last message that window receives

Nish

Sonork ID 100.9786 voidmain
www.busterboy.org
If you don't find me on CP, I'll be at Bob's HungOut

Re: WM_CLOSE or WM_DESTROY

Henry Jacobs8-Dec-01 10:38

Henry Jacobs

8-Dec-01 10:38

I use WM_CLOSE to ask the user if they want to save the document they are working on. If they click cancel I don't call DestroyWindow and the program returns to its previous state. I use WM_DESTROY to release all my resources.

How can you make a dialog show up in the taskbar?

Cathy7-Dec-01 14:14

Cathy

7-Dec-01 14:14

I am creating a utility that does not have a main window. I show different dialogs, one after the other, depending on the situation. It seems the 1st put up dialog gets to be the taskbar button. I would like the next dialog to get its own taskbar button, but I can't figure out how to do it.

Please enlighten me,
Cathy

Cathy

Re: How can you make a dialog show up in the taskbar?

Michael Dunn7-Dec-01 16:50

Michael Dunn

7-Dec-01 16:50

Set the WS_EX_APPWINDOW extended style.

--Mike--
http://home.inreach.com/mdunn/
Help! Help! I'm being repressed!!
Heart | [heart]

your

with

and

Sonork - 100.10414 AcidHelm

Re: How can you make a dialog show up in the taskbar?

Cathy10-Dec-01 7:59

Cathy

10-Dec-01 7:59

Thanks, but I already tried that with no luck. I changed it in the .rc file. Was that the correct place?

Cathy

GetWindowText wont work!

Rickard Andersson²⁰7-Dec-01 11:33

Rickard Andersson²⁰

7-Dec-01 11:33

I want to get the title of Internet Explorer:

#include <windows.h>

LPSTR strIE;
LPSTR str2;

HWND IE;

int WINAPI WinMain(HINSTANCE,HINSTANCE,LPSTR,int)
{
IE = FindWindow("IEFrame",NULL);
if( IE != NULL )
{
GetWindowText(IE, strIE, GetWindowTextLength(IE));
MessageBox(NULL, (LPCTSTR) strIE,"",MB_OK);
}
return 0;
}

But no MessageBox(...) at all will appear! Frown | :(

------------------------------

Re: GetWindowText wont work!

Erik Thompson7-Dec-01 12:08

Erik Thompson

7-Dec-01 12:08

The problem is that your whole app should be exploding. You haven't actually allocated any memory for your string, so the behavior will certainly be unexpected. Try allocating enough space for the string first then calll GetWindowText passing in the amount of space you actually allocated then do the message box then remember to clean up the memory you allocated. A good start would be to learn C/C++ programming before jumping head first into windows development.

Cheers,
-Erik
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
My thoughts are my own and reflect on no other.

Re: GetWindowText wont work!

User 66588-Dec-01 3:26

User 6658

8-Dec-01 3:26

Since the IEframe does not belong to your app's process you need to send the WM_GETTEXT message to the hwnd of the IE. This is the correct way:

TCHAR wndText[512];
::SendMessage(IE,WM_GETTEXT,sizeof(wndText)/sizeof(TCHAR),(LPARAM)(void*)wndText);

regards

modified 12-Sep-18 21:01pm.

Re: GetWindowText wont work!

Masaaki Onishi8-Dec-01 4:52

Masaaki Onishi

8-Dec-01 4:52

Hello, the codegurus around the world.;)

I think that your approaches works to get the text in Edit box as
Paul Delicika sais in MSDN artile. Confused | :confused:

The following code works for me.

void CCodeTestDlg::OnOK() 
{
	// TODO: Add extra validation here
	CString ieTitle;
	TCHAR title[MAX_PATH];

	CWnd *pWnd = CWnd::FindWindow ("IEFrame",NULL);

	if (pWnd) {
		MessageBox ("IE is opened!", "Info");

		// By MFC
		pWnd->GetWindowText (ieTitle);
		GetDlgItem (IDC_MYSTATIC)->SetWindowText (ieTitle);

		// By Win32 API
		::GetWindowText (pWnd->m_hWnd, title, MAX_PATH);
		MessageBox (title, "Test");

	}

	else {
		MessageBox ("IE isn't opened!", "Info");
	}

//	CDialog::OnOK();
}

Please, don't send me your email about your questions directly.
Have a nice day!
Sonork - 100.10571:vcdeveloper Wink | ;)

-Masaaki Onishi-

VC++ Package Deployment

Vu Nguyen7-Dec-01 11:10

Vu Nguyen

7-Dec-01 11:10

Hi All!

under MS Visual Studio, we have a tool call Package Deployment Wizard for Visual Basic. This tool helps make a setup package for an EXE file of VB. It attaches all the dll files to the VB exe file basically. Do we have anything like that for VC++? I ask this because one of my applications does not run under NT4.0 SP6 when I compile it using "use MFC in a shared dll". The file needed is MFC42.dll;

Thanks
Vu

vucsuf

Re: VC++ Package Deployment

Nemanja Trifunovic7-Dec-01 11:44

Nemanja Trifunovic

7-Dec-01 11:44

There is InstallShield for this.

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