C / C++ / MFC Discussion Boards

Re: Convert char array into CString

Mark Salsbery26-Dec-06 6:36

Mark Salsbery

26-Dec-06 6:36

Johpoke wrote:
im feeding it the right amount of char

Are you saying there's 64 characters in your initialization string? If so then that's bad Smile | :)

You need to have room for the NULL terminator. If you need 64 chars then define your data
variable to a length of 65.

Re: Convert char array into CString

Johpoke26-Dec-06 6:39

Johpoke

26-Dec-06 6:39

yea i know about the end part the /0 or if its a \0 but i use 63 of them, 64 with that, but i just need to be able to set all of it like

data = "10100010.....

its probably something simple im forgetting as usual-..

thanks

/Johannes

Re: Convert char array into CString

Mark Salsbery26-Dec-06 6:56

Mark Salsbery

26-Dec-06 6:56

Johpoke wrote:
its probably something simple im forgetting as usual-..

Instead of

char data[64];
data = "011111....";

try

char data[64] = "011111....";

or

char data[64];
strcpy(data, "011111....");

Re: Convert char array into CString

prasad_som26-Dec-06 18:25

prasad_som

26-Dec-06 18:25

Johpoke wrote:
char data[64];
data = "011111....";

You might like to modify it to ,

char data[64] = {0};
data = "011111....";

Prasad
Notifier using ATL | Operator new[],delete[][^]

How to Adjust MainFrm window as the Resolution changes?

aamir.zia26-Dec-06 4:40

aamir.zia

26-Dec-06 4:40

Hi All ,
i am woking in a SDI based MFC(VC++) application, i want to know that how can i make my application to adjust main frame window as the screen resolution changes from 1024X768 to 800X600 or any other?
Currently, as soon as my screen resolution changes to 800X600 my main frame window gets out of the screen and is no more visible entirely.

Please provide me with any solution.

thanx all

Aamir

Aamir Zia

Re: How to Adjust MainFrm window as the Resolution changes?

Mark Salsbery26-Dec-06 5:42

Mark Salsbery

26-Dec-06 5:42

You could resize your main frame window in response to a WM_DISPLAYCHANGE message.

Mark

Re: How to Adjust MainFrm window as the Resolution changes?

Cristian Amarie26-Dec-06 6:30

Cristian Amarie

26-Dec-06 6:30

Consider also messages WM_SETTINGCHANGE and WM_WININICHANGE.

Text and View manipulations

BlitzPackage26-Dec-06 4:19

BlitzPackage

26-Dec-06 4:19

Greetings,

I have some text that I want to print to a CView. However, instead of just having it print to the end of the view (horizontally), I need it to print within a certain area (i.e. a box/rectangle/area of the CView 300 pixels wide by 500 pixels high). How do I print out the text so that it wraps properly and perhaps even justify it within a rectangular part of the CView?

Thanks,
BP

Re: Text and View manipulations

John R. Shaw26-Dec-06 4:50

John R. Shaw

26-Dec-06 4:50

It sounds like you need to call ‘DrawText’ or ‘DrawTextEx’ as it was designed for that purpose.

INTP
"Program testing can be used to show the presence of bugs, but never to show their absence."Edsger Dijkstra

Re: Text and View manipulations

BlitzPackage26-Dec-06 15:05

BlitzPackage

26-Dec-06 15:05

Thanks, I will go check it out.

Re: Text and View manipulations

Hamid_RT26-Dec-06 6:37

Hamid_RT

26-Dec-06 6:37

I agree with Mr John R. Shaw It seems DrawTextEx is helpfuls

WhiteSky

Re: Text and View manipulations

BlitzPackage26-Dec-06 15:05

BlitzPackage

26-Dec-06 15:05

Thanks, I will go check it out.

Re: TextBox creation, w/o resource editor?

mla15426-Dec-06 4:06

mla154

26-Dec-06 4:06

Hello,
The check boxes provided in the resource editor are pretty, but I would like to create check boxes without using the resource editor (dynamically). How do I do this? Any help is appreciated.

Re: TextBox creation, w/o resource editor?

prasad_som26-Dec-06 4:16

prasad_som

26-Dec-06 4:16

Need to use CButton class with BS_CHECKBOX style .
e.g.

// Create check box.
m_Button.Create(_T("Check Box"), WS_CHILD |WS_VISIBLE|BS_CHECKBOX, 
   CRect(10,10,100,30), pParentWnd, 1);

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: TextBox creation, w/o resource editor?

mla15426-Dec-06 5:05

mla154

26-Dec-06 5:05

Hello,
I put the following code into CPrintOptionsDlg::OnInitDialog()
CButton m_Button;
// Create check box.
m_Button.Create(_T("Check Box"), WS_CHILD |WS_VISIBLE|BS_CHECKBOX,
CRect(0,0,10,30), this, 1);
However, I didn't see the check box. Any ideas? My CPrintOptionsDlg class is derived from CDialog.

Re: TextBox creation, w/o resource editor?

Mark Salsbery26-Dec-06 5:47

Mark Salsbery

26-Dec-06 5:47

mla154 wrote:
I put the following code into CPrintOptionsDlg::OnInitDialog()

Did you call CDialog::OnInitDialog() before creating the button?

Re: TextBox creation, w/o resource editor?

mla15426-Dec-06 5:58

mla154

26-Dec-06 5:58

Yes, I did. My function looks like this:

BOOL CPrintOptionsDlg::OnInitDialog()
{
CDialog::OnInitDialog();
CButton m_Button;
// Create check box.
m_Button.Create(_T("Check Box"), WS_CHILD |WS_VISIBLE/*|BS_CHECKBOX*/,
CRect(0,0,10,30), this, 1);

return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}

Re: TextBox creation, w/o resource editor?

Mark Salsbery26-Dec-06 6:00

Mark Salsbery

26-Dec-06 6:00

your CButton object is going out of scope (so it is destroyed) when the OnInitDialog() method
returns.

Try moving

CButton m_Button;

to your class definition (so it's a member of your CPrintOptionsDlg class).

Re: Thanks

mla15426-Dec-06 6:46

mla154

26-Dec-06 6:46

It works. Thanks.

Re: TextBox creation, w/o resource editor?

prasad_som26-Dec-06 18:07

prasad_som

26-Dec-06 18:07

I've mentioned CButton variable name as m_Button, which implies its a class member variable.

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: Thanks

mla15427-Dec-06 2:06

mla154

27-Dec-06 2:06

It worked, thanks.

Re: Thanks

prasad_som27-Dec-06 2:30

prasad_som

27-Dec-06 2:30

My Pleasure. Smile | :)

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: TextBox creation, w/o resource editor?

Hamid_RT26-Dec-06 6:35

Hamid_RT

26-Dec-06 6:35

Try this

CButton m_Button;
m_Button.Create("Test",WS_CHILD|BS_AUTOCHECKBOX|WS_VISIBLE,CRect(0,0,100,23),this,1);
</code>

WhiteSky

Problem with Debug compiler after installing LIB files

ndfspeed197126-Dec-06 4:04

ndfspeed1971

26-Dec-06 4:04

Hi Everyone,

Many thanks in advance for all your help.

Compiler is a Visual C++ 6.0 SP6
machine Dell 3GHz 1 GB memory.
XP Pro

The whole problem started once I decided to include two LIB files to my program. These LIB files are not run unless the user goes into a 3rd CDialog menu and then presses the Start button underneath it. The two LIB files do there jobs and then release the resources and everything is fine. When I made the implementation the compiler gave me some problems and with a help of a college we got the release version to work but the Debug section just doesn't work.

Here are some symptoms:

After Compiling I get this error
Linking...
LINK : warning LNK4098: defaultlib "nafxcw.lib" conflicts with use of other libs; use /NODEFAULTLIB:library

After i press the "Run Debugger" button:
Debug Assertion Failure
Program : C:\WinTAP_Debug.exe
File : appui.cpp
Line 91

After pressing "Retry" then it will take me to this line of code

CDocument* CWinApp::OpenDocumentFile(LPCTSTR lpszFileName)
{
ASSERT(m_pDocManager != NULL); //****->it will point me to this line
return m_pDocManager->OpenDocumentFile(lpszFileName);
}

in the APPUI.cpp file.

I abort after this.

It also points me a line of code in my watch list
ntohs(the_data->data[0])
This is a function that I use in many places of my code but cant seem to find where exactly it is coming from. This is a simple conversion function that has a struct attached to it.

If i step into it then I get
Access Violation 0x0000005

The project settings are:
General TAB **********************************
Use MFC in Static Lib

Link tab************************
Link->Input->Object/Selection module = are the LIB files I included.
TrackerLIB.lib ScanClasssLIB.lib

Ignore Lib section
libc.lib,libcmt.lib,msvcrt.lib,libcd.lib,msvcrtd.lib

Project options has the following
TrackerLIB.lib ScanClasssLIB.lib /nologo /subsystem:windows /incremental:yes /pdb:"Debug/WinTAP_Debug.pdb" /debug /machine:I386 /nodefaultlib:"libc.lib" /nodefaultlib:"libcmt.lib" /nodefaultlib:"msvcrt.lib" /nodefaultlib:"libcd.lib" /nodefaultlib:"msvcrtd.lib" /out:"\WinTAP_Debug.exe" /pdbtype:sept

Link->Customize
\WinTAP_Debug.exe

C++ Tab****************************
Code Generation
Blend
Debug Multithreaded

Project options
/nologo /MTd /W3 /Gm /GX /ZI /Od /D "WIN32" /D "_DEBUG" /D "_WINDOWS" /Fp"Debug/SurvailanceRadarDataFilter.pch" /Yu"stdafx.h" /Fo"Debug/" /Fd"Debug/" /FD /GZ /c

I checked the LIB projects and they are also Multithreaded.

So what is this really. I never had a problem like this.

Many thanks in advance.

ndfspeed

Re: Problem with Debug compiler after installing LIB files

ndfspeed197126-Dec-06 4:08

ndfspeed1971

26-Dec-06 4:08

Here is some additional information and a breakdown on how this project got here.

I have been developing a CDialog program that displays aircraft data and is used as a display program to analyze radar problems. This is a stand alone program that was written in Visual C++ MFC with modul and non-modul dialog boxes. I used STL to store the data in memory and massage the data with certain tasks.

I was tasked to write programs such as a Scan Analyzer and Tracker program.
So I went ahead and wrote them as stand alone programs in Visual C++. They originally both had CDialog boxes and I did all the r&D in VC++ GUI and once I was done I stripped all the GUI code from them and ported them over to be Library's to be attached to the Main Project as analysis tools. So I was successful in doing so in Release mode but the Debug mode just doesn't work. The Release mode does everything it should do and has no problems at all but the Debug mode is in bad shape.

Project settings are as follows for each program
1) WinTAP Program (Main program) under projects settings is:
Release and Debug mode is "Use MFC in Static Library"

1) The Tracker Program under projects settings is :
Release and Debug mode "Use MFC in Shared DLL"

2) Scan Analyzer Program under project settnigs is:
Release and Debug mode "Use MFC in Shared DLL"

Many thanks in advance for all your help.
Yours
ndfspeed

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