C / C++ / MFC

Anu_Bala12-Feb-08 4:57

Anu_Bala

12-Feb-08 4:57

Extremely im very sorry...that im in client company.So i dont have code with me.

But i have some doubt that i used for serial port communication MSCOMM dialog.May be error come by that way.Im not sure.After few hours i will post the code in detail.

Anu

Cedric Moonen12-Feb-08 5:03

Cedric Moonen

12-Feb-08 5:03

Yes, I think you forgot either to copy it on the target machine or to register it with regsrv32 (or both).

Cédric Moonen
Software developer

Charting control [v1.2]

Iain Clarke, Warrior Programmer12-Feb-08 5:03

12-Feb-08 5:03

I've pasted it in a lower reply:
http://www.codeproject.com/script/Forums/View.aspx?fid=1647&msg=2424638[^]

Iain.

Iain Clarke appearing in spite of being begged not to by ^CPallini.

toxcct12-Feb-08 4:55

toxcct

12-Feb-08 4:55

if you linked the MFC library dynamically, the provide MFC42.dll with your exe, + the few other dlls the system requires...

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Cedric Moonen12-Feb-08 4:58

Cedric Moonen

12-Feb-08 4:58

That's probably not the problem because then it would have complained about missing dll's and not give an assertion.

Cédric Moonen
Software developer

Charting control [v1.2]

Iain Clarke, Warrior Programmer12-Feb-08 5:01

12-Feb-08 5:01

As Cedric has prodded me, some more thoughts...

The redistributables haven't been necessary for a long time now. If your program runs, you don't need them.

I stand by my second point...

Looking at winocc.cpp:345...

/////////////////////////////////////////////////////////////////////////////
// CWnd invoke helpers for OLE Control wrappers

void AFX_CDECL CWnd::InvokeHelper(DISPID dwDispID, WORD wFlags, VARTYPE vtRet,
	void* pvRet, const BYTE* pbParamInfo, ...)
{
	ASSERT(m_pCtrlSite != NULL);    // not an OLE control (not yet, at least)          <--- line 345.

	if (m_pCtrlSite == NULL)
		return;

	va_list argList;
	va_start(argList, pbParamInfo);
	m_pCtrlSite->InvokeHelperV(dwDispID, wFlags, vtRet, pvRet, pbParamInfo,
		argList);
	va_end(argList);
}

It looks like you're using some COM object that you haven't installed / registered / ask politely on your new system.

Now you just need to track it down. I find remote debugging a bit of a nuisance, but a godsend at times like this.

Iain.

Iain Clarke appearing in spite of being begged not to by ^CPallini.

Hamid_RT12-Feb-08 6:47

Hamid_RT

12-Feb-08 6:47

Can you more explain about your program ?

David Crow12-Feb-08 7:48

David Crow

12-Feb-08 7:48

Anu_Bala wrote:
I got the assertion error in Winocc.cpp at line 345.

Assertions are part of debug builds.

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Rajesh R Subramanian12-Feb-08 8:54

Rajesh R Subramanian

12-Feb-08 8:54

DavidCrow wrote:
Assertions are part of debug builds.

Yeah, but he had to ship the debug build, may be because the release build was crrrashhing when it starts. Big Grin | :-D

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Anu_Bala12-Feb-08 17:29

Anu_Bala

12-Feb-08 17:29

Hi,

To solve my problem...Finally I installed VC in the system.Now the assertion error is not coming..its working.
But comunication is not working in COM port.

I create Dialog instance like this..

pDlg = new CMSCOMMDlg();
pDlg->Create(IDD_MSCOMM, this);
pDlg->OpenPort();

void CMSCOMMDlg::OpenPort()
{

m_Comm.SetCommPort (1); // Com port 1
m_Comm.SetSettings ("9600,e,8,1");
m_Comm.SetInputMode (1); // Binary mode
m_Comm.SetPortOpen (TRUE); // Open it
}

And i use this coding to glow LED in External keyboard conneced in serial port.

void CMSCOMMDlg::OnButton1()
{
// TODO: Add your control notification handler code here
//OpenPort();
CByteArray btArray;
btArray.Add (0xC5); // Byte 1
btArray.Add (0x0C); // Byte 2

COleVariant var(btArray);
m_Comm.SetOutput(var); // Send the data.
}
But the signal is not reached to keyboard.
I dnt know why this problem? still im searching for my problem.

But this EXE is running perfectly in my system(development system).

Anu

Rajesh R Subramanian12-Feb-08 19:50

Rajesh R Subramanian

12-Feb-08 19:50

Anu_Bala wrote:
To solve my problem...Finally I installed VC in the system.Now the assertion error is not coming..its working.

Way to go... Smile | :)

Nobody can give you wiser advice than yourself. - Cicero
.·´¯`·->Rajesh<-·´¯`·.
Codeproject.com: Visual C++ MVP

Drop List in a Combo Box

Davros12-Feb-08 4:30

12-Feb-08 4:30

Hi
Can anybody help me with the following puzzling problem?

I have created a dialog using Visual Studio 2005 (MFC) and added a combo box to it. This combo has been set to type Drop List and I have set the list box height at design time by clicking the arrow and changing the height of the "ghost" image. I have also set the Vertical Scroll to True.

I have populated this with more items than should be possible to display in one go. However, when I run it, no scroll bar appears!!! That is, it simply drops down with all the entries.

Can anybody tell me what I've done wrong and ideally reproduce the problem as I'm going slightly crazy!!!

Thanks

Paul

Iain Clarke, Warrior Programmer12-Feb-08 5:05

12-Feb-08 5:05

I just did what you described, and had no trouble. It behaved as expected. So something else in your application is giving you trouble.

Are these just CComboBoxes? Or CMyCustomCombo?

Does it work on a freshly created dialog app project? If so, what are you doing differently?

Are you handling some fancy CBN_MEASURESTUFF notification and doing odd sums?

I'm just guessing now...

Iain.

Iain Clarke appearing in spite of being begged not to by ^CPallini.

Davros12-Feb-08 5:15

12-Feb-08 5:15

Hi Iain

No, it is just a normal combo. Not handling anything. Very strange! I've tried it on two different machines (reproducing my steps) and get exaclty the same thing.

I've given the combo a variable i.e. m_comboBox and fill it using

m_comboBox.AddString(_T("Hello World")); etc

Is there any code in particular I could cut and paste to show what I've done?

Paul

Davros12-Feb-08 5:20

12-Feb-08 5:20

Here's a copy of the resource:

IDD_DIALOG1 DIALOGEX 0, 0, 186, 90
STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "My First Dialog"
FONT 8, "MS Shell Dlg", 400, 0, 0x1
BEGIN
DEFPUSHBUTTON "OK",IDOK,129,7,50,14
PUSHBUTTON "Cancel",IDCANCEL,129,24,50,14
CONTROL "Radio1",IDC_RADIO1,"Button",BS_AUTORADIOBUTTON,21,14,38,10
COMBOBOX IDC_COMBO2,22,39,57,14,CBS_DROPDOWNLIST | CBS_SORT | WS_VSCROLL | WS_TABSTOP
END

Iain Clarke, Warrior Programmer12-Feb-08 5:56

12-Feb-08 5:56

I just peeked at my resource, and I got:

COMBOBOX  IDM_TOOLS_MEASUREMENTANGLE,36,8,60,116,CBS_DROPDOWNLIST | WS_VSCROLL | WS_TABSTOP

There are two differences: CBS_SORT, which we can ignore, but I almost never use, and the cy value.

You have 22,39,57,14 and I have 36,8,60,116. Try editing yours to be a medium value (eg) 80, and see how you get on.

Your may be so small, windows is going "With the edit box, I can't even see one drop down. I'd better just show the lot". That would be a surprise, but not a shock. Probably some fix to be compatible with a program under Windows 3.0.

Iain.

Iain Clarke appearing in spite of being begged not to by ^CPallini.

Davros12-Feb-08 6:00

12-Feb-08 6:00

Hi Iain

I tried your suggestion and still no luck. Very strange! This was done on VS 2008 but I get exactly the same thing in Visual Studio 2005.

Here's my dialog code:

// TestDialog.cpp : implementation file
//

#include "stdafx.h"
#include "mfc2008combodroplist.h"
#include "TestDialog.h"

// TestDialog dialog

IMPLEMENT_DYNAMIC(TestDialog, CDialog)

TestDialog::TestDialog(CWnd* pParent /*=NULL*/)
: CDialog(TestDialog::IDD, pParent)
{

}

TestDialog::~TestDialog()
{
}

void TestDialog::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_COMBO1, m_comboBox);
}

BEGIN_MESSAGE_MAP(TestDialog, CDialog)
END_MESSAGE_MAP()

// TestDialog message handlers

BOOL TestDialog::OnInitDialog()
{
CDialog::OnInitDialog();

// TODO: Add extra initialization here

m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("G"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("D"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("G"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("G"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("D"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("G"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("G"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("D"));
m_comboBox.AddString(_T("A"));
m_comboBox.AddString(_T("G"));
m_comboBox.AddString(_T("A"));

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

and the header:

#pragma once
#include "afxwin.h"

// TestDialog dialog

class TestDialog : public CDialog
{
DECLARE_DYNAMIC(TestDialog)

public:
TestDialog(CWnd* pParent = NULL); // standard constructor
virtual ~TestDialog();

// Dialog Data
enum { IDD = IDD_DIALOG1 };

protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support

DECLARE_MESSAGE_MAP()
public:
CComboBox m_comboBox;
virtual BOOL OnInitDialog();
};

Davros12-Feb-08 6:07

12-Feb-08 6:07

Ah, I tried adding loads and loads of entries, so that the list won't fit on the screen and a scrollbar appears!

However, this isn't what I want. Obviously when the list box size is set in the resource editor the whole point is that it shouldn't be any bigger than intended.

I'm very puzzled but very grateful for the help your giving!

Paul

Iain Clarke, Warrior Programmer12-Feb-08 6:18

12-Feb-08 6:18

I made a virgin project, added a box, and it worked as we'd both expect. If you email me your address, I can zip it and send it. (Obviously don;t post it here). It is a VC6 project though. Which made me look at your post again, and I saw...

the line "#include "mfc2008combodroplist.h", makes me suspicious...

Maybe MFC is being naughtily helpful?
Are you under Vista, and it's being "helpful" too?

Have you tried editing the resource as I recommended and setting the CY value as something medium? (ie, well above 14!)

Iain.

Iain Clarke appearing in spite of being begged not to by ^CPallini.

Davros12-Feb-08 6:31

12-Feb-08 6:31

Hi Iain

The include is merely the name I gave the application. I don't think it has anything to do with it because I had a different name on the Visual Studio 2005 version.

I'm using XP and Vista. The problem is on both.

Yep, I changed the CY value without any luck.

This is a strange one!!!!

Paul

p.s. I've sent you an email

Davros12-Feb-08 7:02

12-Feb-08 7:02

Hi Iain

I've just tried to do the same thing in VC++ 6 and it works!!!

This is obviously an issue with VS2005!

I'm amazed there aren't more posts on the issue though. Surely others have encountered it!!!

Paul

Davros12-Feb-08 7:47

12-Feb-08 7:47

HOWEVER - when I load the VC++ 6 project into Visual Studio 2005 it WORKS!!! OMG | :OMG:

Paul

Iain Clarke, Warrior Programmer12-Feb-08 9:03

12-Feb-08 9:03

My bet is that it's a difference MCF'S combobox. I bet MFC v2005 is doing clever things - and the imported project is using mfc42.dll.

Try not using CComboBox as a member variable and DDX_Controlling.

Try using SendDlgItemMessage (CB_ADDSTRING.... etc)

Iain.

Iain Clarke appearing in spite of being begged not to by ^CPallini.

Davros12-Feb-08 9:13

12-Feb-08 9:13

that's sounds sensible to me!

I'll give it a go and post if it works.

It does sound like a bug though doesn't it?

Paul

Davros13-Feb-08 0:12