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I have a spin control associated with it via the AUTO_BUDDY mechanisam. I have used SetRange in OnInitDialog() for the spin control.
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Neil Urquhart wrote: I have used SetRange...
With what values?
I tried to reproduce this behavior but it works fine for me. I added one edit control and one spin control. I added the ES_NUMBER style to the edit control. I added the UDS_SETBUDDYINT and UDS_AUTOBUDDY styles to the spin control. I used 1,5 as the range. You must have something else in place that is interfering.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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It seems using UpdateData(FALSE) in the OnChangeEdit1() is the source of the problem. Without it I don't get the exception. Its probably not required anyhow. I don't understand why it only causes the problem when the string in the edit control is empty.
This is the code which causes the exception :
#include "stdafx.h"
#include "CEditTest.h"
#include "CEditTestDlg.h"
#define IDT_UPDATE 1000
#define UPDATE_INTERVAL 1000
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX);
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
CCEditTestDlg::CCEditTestDlg(CWnd* pParent )
: CDialog(CCEditTestDlg::IDD, pParent)
{
m_edit1 = 0;
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
bDlgInitDone = FALSE ;
}
void CCEditTestDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_SPIN1, m_spin1);
DDX_Text(pDX, IDC_EDIT1, m_edit1);
}
BEGIN_MESSAGE_MAP(CCEditTestDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_WM_TIMER()
ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)
END_MESSAGE_MAP()
BOOL CCEditTestDlg::OnInitDialog()
{
CDialog::OnInitDialog();
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
SetIcon(m_hIcon, TRUE);
SetIcon(m_hIcon, FALSE);
m_spin1.SetRange(1,99) ;
SetTimer(IDT_UPDATE, UPDATE_INTERVAL, NULL) ;
bDlgInitDone = TRUE ;
return TRUE;
}
void CCEditTestDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
void CCEditTestDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this);
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
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;
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
HCURSOR CCEditTestDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CCEditTestDlg::OnTimer(UINT nIDEvent)
{
switch (nIDEvent) {
case IDT_UPDATE :
KillTimer(nIDEvent) ;
UpdateData(TRUE) ;
UpdateData(FALSE) ;
SetTimer(IDT_UPDATE, UPDATE_INTERVAL, NULL) ;
break ;
default :
CDialog::OnTimer(nIDEvent);
}
}
void CCEditTestDlg::OnChangeEdit1()
{
if(bDlgInitDone) UpdateData(TRUE) ;
TRACE("value is %d\n", m_edit1) ;
}
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Neil Urquhart wrote: It seems using UpdateData(FALSE) in the OnChangeEdit1() is the source of the problem.
UpdateData() is rarely, if ever, necessary. Remove it, use a CEdit control variable, and your troubles will cease.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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It seems if you don't use UpdateData(TRUE) in your OnChangeEdit.....() function then the member variable added to the control is not updated.
Ie the user will perhaps change a value from 1 to 12 in the integer CEdit box and without UpdateData(TRUE) the m_edit1 caught in the OnChangeEdit...() function will be 1 and not 12.
Also it seems the OnChangeEdit...() function can be called prior to OnInitDialog() and if UpdateData() is called at this time then problems will result. I protect my code against this by using a flag to indicate that the OnInitDialog() function had finished.
BOOL CCEditTestDlg::OnInitDialog()<br />
{<br />
CDialog::OnInitDialog();<br />
<br />
<br />
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);<br />
ASSERT(IDM_ABOUTBOX < 0xF000);<br />
<br />
CMenu* pSysMenu = GetSystemMenu(FALSE);<br />
if (pSysMenu != NULL)<br />
{<br />
CString strAboutMenu;<br />
strAboutMenu.LoadString(IDS_ABOUTBOX);<br />
if (!strAboutMenu.IsEmpty())<br />
{<br />
pSysMenu->AppendMenu(MF_SEPARATOR);<br />
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);<br />
}<br />
}<br />
<br />
SetIcon(m_hIcon, TRUE);
SetIcon(m_hIcon, FALSE);
<br />
<br />
...<br />
...<br />
...<br />
<br />
bDlgInitDone = TRUE ;<br />
<br />
<br />
return TRUE;
}<br />
void CCEditTestDlg::OnChangeEdit1() <br />
{<br />
<br />
<br />
if(bDlgInitDone) UpdateData(TRUE) ;<br />
<br />
TRACE("value is %d\n", m_edit1) ;<br />
<br />
<br />
}
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Neil Urquhart wrote: It seems if you don't use UpdateData(TRUE) in your OnChangeEdit.....() function then the member variable added to the control is not updated.
That's what GetWindowText() is for.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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It seems in my break point testing in DoDataExchange I had put it after the DDX_Text function. It seems that the "Please enter a positive integer." message come from inside the relvant DDX_Text function somewhere.
I was therefore able to fix the problem by intercepting the value coming from CEdit at the top of DoDataExchange with a bit of validation code. The curcial test you need is to check the text in CEdit to see if the user deleted it all, even though it uses numbers. If he did delete it all I set the text and memver variable to a default value.
I also add validation code for my values range.
void CArtConDlg::DoDataExchange(CDataExchange* pDX)
{
CEdit *cEd ;
CString csTxt ;
cEd = (CEdit*)GetDlgItem(IDC_EDIT_DMINTERVAL) ;
cEd->GetWindowText(csTxt) ;
if(csTxt.IsEmpty()) {
m_iDmInterval = MIN_DMINTERVAL ;
csTxt.Format("%d", m_iDmInterval) ;
cEd->SetWindowText((LPCSTR)csTxt) ;
} else if(m_iDmInterval < MIN_DMINTERVAL) {
m_iDmInterval = MIN_DMINTERVAL ;
} else if(m_iDmInterval > MAX_DMINTERVAL) {
m_iDmInterval = MAX_DMINTERVAL ;
}
cEd = (CEdit*)GetDlgItem(IDC_EDIT_ONESHOTHOURS) ;
cEd->GetWindowText(csTxt) ;
if(csTxt.IsEmpty()) {
m_iTmrOneShotHours = MIN_TMRONESHOTHOURS ;
csTxt.Format("%d", m_iTmrOneShotHours) ;
cEd->SetWindowText((LPCSTR)csTxt) ;
} else if(m_iTmrOneShotHours < MIN_TMRONESHOTHOURS) {
m_iTmrOneShotHours = MIN_TMRONESHOTHOURS ;
} else if(m_iTmrOneShotHours > MAX_TMRONESHOTHOURS) {
m_iTmrOneShotHours = MAX_TMRONESHOTHOURS ;
}
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_SPIN_ONESHOTHOURS, m_ctrlSpinOneShotHours);
DDX_Control(pDX, IDC_SPIN_DMINTERVAL, m_ctrlSpinDmInterval);
DDX_Control(pDX, IDC_TIMERONOFF, m_ctrlTimerOn);
DDX_Control(pDX, IDC_LIGHTSENSORDAYNIGHT, m_ctrlLightSensor);
DDX_Control(pDX, IDC_ARTWORK, m_ctrlArtworkOn);
DDX_Control(pDX, IDC_EDITMODELAP, m_ctrlEditModeLap);
DDX_Control(pDX, IDC_COMMSALIVE, m_ctrlCommsAlive);
DDX_Control(pDX, IDC_EDIT_LUMIN, m_ctrlEditLumin);
DDX_Control(pDX, IDC_SLIDER_LUMIN, m_ctrlSliderLumin);
DDX_Control(pDX, IDC_LIST_FADERS, m_ctrlListFaders);
DDX_Text(pDX, IDC_EDIT_FADERUPDATETIME, m_csFaderUpdateTime);
DDX_Text(pDX, IDC_EDIT_TOTAL_AMPS, m_csTotalAmps);
DDX_Text(pDX, IDC_EDIT_TOTAL_AMPSPCT, m_csTotalAmpsPct);
DDX_Radio(pDX, IDC_RADIO_MODEON, m_iTimerMode);
DDX_Check(pDX, IDC_CHECK_TMRONESHOTONEN, m_bTmrOneShotEn);
DDX_Check(pDX, IDC_CHECK_TMRFRI, m_bTmrFri);
DDX_Check(pDX, IDC_CHECK_TMRMON, m_bTmrMon);
DDX_Check(pDX, IDC_CHECK_TMRSAT, m_bTmrSat);
DDX_Check(pDX, IDC_CHECK_TMRSUN, m_bTmrSun);
DDX_Check(pDX, IDC_CHECK_TMRTHU, m_bTmrThu);
DDX_Check(pDX, IDC_CHECK_TMRTUE, m_bTmrTue);
DDX_Check(pDX, IDC_CHECK_TMRWED, m_bTmrWed);
DDX_Text(pDX, IDC_EDIT_ONESHOTENDENDDATETIME, m_csOneShotEndDateTime);
DDX_Radio(pDX, IDC_RADIO_DMCYCLE, m_iDisplayMode);
DDX_Text(pDX, IDC_EDIT_DMINTERVAL, m_iDmInterval);
DDX_Text(pDX, IDC_EDIT_DMFILE, m_csDmFile);
DDV_MaxChars(pDX, m_csDmFile, 32);
DDX_DateTimeCtrl(pDX, IDC_DATETIMEPICKER_START, m_ctTmrStart);
DDX_DateTimeCtrl(pDX, IDC_DATETIMEPICKER_FINISH, m_ctTmrFinish);
DDX_DateTimeCtrl(pDX, IDC_DATETIMEPICKER_ONESHOTSTART, m_ctTmrOneShotStart);
DDX_Text(pDX, IDC_EDIT_ONESHOTHOURS, m_iTmrOneShotHours);
DDX_Radio(pDX, IDC_RADIO_DMPERIODMIN, m_iDmIntervalUnits);
DDX_Text(pDX, IDC_EDIT_DMLASTFILE, m_csDmLastFile);
DDX_Text(pDX, IDC_EDIT_DMLASTUPDATE, m_csDmLastFileUpdated);
DDX_Radio(pDX, IDC_RADIO_LSORAUTO, m_iLightSensorOverRide);
DDX_Slider(pDX, IDC_SLIDER_LUMIN, m_iSliderLumin);
DDX_Text(pDX, IDC_EDIT_LUMIN, m_iEditLumin);
DDX_Text(pDX, IDC_EDIT_FILE, m_csEditFile);
}
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Hi all,
do you know any good barcode generator lib? I've found some, including some good CP articles, but they are not enough as I need the maximum number of type of barcodes to cover: 1D and 2D.
Any option is welcome: paid or free&opensource.
thanks in advance,
Marc Soleda
... she said you are the perfect stranger she said baby let's keep it like this... Dire Straits
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If you prepare to print barcode, you have to buy barcode fonts - only fonts can be printed clearly enough for scanner.
barcode fonts are code generators.
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I'm using DLSoft's barcodes for .NET ([^]) which is adequate.
They cover a wide range of 1D and 2D barcodes, and the technical support is adequate.
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Hi
Why we are using Pure virtual function and Which situation we used Pure virtual function ??
Thanks
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See here.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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We're building interfaces using pure virtual functions, and yes, we used pure virtual functions mostly when we needed interfaces. 
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke
[My articles]
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I wanted to know that is there any way for an application to know that if the logged on user is on local machine or on Remote session ??
Regards,
Kushagra
I hate coding but I luv to develop 
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I've got no way to verify this, but have you tried NetUserGetInfo()? You might also find something in the Remote Desktop Services API.
"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
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Just use System apis (Win32 FAQ)
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hi
i use function waveOpen that create one wave file. this function get name of file in LPWSTR type.
i generate name of file with below code:
[code]
LPWSTR fileNameLPW;
char fileNameStr[20];
int indexOfFile;
sprintf(fileNameStr,"NEWFILE%d.WAVE",indexOfFile);
CreateWave(fileNameLPW);
[/code]
now how can i copy fileNameStr to fileNameLPW !?
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hadi kazemi wrote: now how can i copy fileNameStr to fileNameLPW !?
Quote Selected Text
Well you should start by using all wide character functions, then fileNameLPW is redundant e.g.
WCHAR fileNameStr[20];
int indexOfFile;
wsprintf(fileNameStr,L"NEWFILE%d.WAVE",indexOfFile);
CreateWave(fileNameStr);
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That should be swprintf or wsprintfW
(or use TCHAR instead of WCHAR and let the compiler macros pick the right windows function.)
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Joe Woodbury wrote: That should be swprintf or wsprintfW
I checked my spelling carefully before posting, and still got it wrong 
Thanks for correcting it.
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hello coder
Is it posile to define same name macro in c project
like folloing
<br />
test1.h<br />
#define process (a&4) <br />
test2.h<br />
#define process (a&4) <br />
<br />
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What are you trying to achieve here, this makes no sense?
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maybe, but the compiler/preprocessor will probably report duplicate something.
But you could do something like (not really test, but I've seen code like in out stuff):
in test1.h
#ifndef process
#define process (a&4)
#endif
and in test2.h
#ifdef process
#undef process
#define process (a&4)
#endif
This signature was proudly tested on animals.
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