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Problem setting time in CDateTimePicker control in OnInitDialog

Hi all, coding MFC C++ in VS.NET 2003

I have a DateTimePicker on one of my dialogs. I need to set the time of the control when the containing dialog is created.

I've added a member variable for the DateTimePicker ( m_dtp )
But if I try to use it in OnInitDialog I get an error because my variable is null.

AndyAinscow

I suspect the class wizard hasn't added entries into the DoDataExchange function of the dialog.

if m_dtp is a COleDateTime then
DDX_DateTimeCtrl(pDX, IDC_DATE_TIME_PICKER_ID_HERE, m_dtp)
else if it is a datetime picker control
DDX_Control(pDX, IDC_DATE_TIME_PICKER_ID_HERE, m_dtp)

alexatsearidge

ASKER

It was there: DDX_Control(pDX, IDC_DTPSTARTTIME, m_dtpStartTime);
Any other ideas?

AndyAinscow

Exactly what is m_dtpStartTime (in header file)

alexatsearidge

ASKER

If I don't try to set the time in OnInitDialog I have no problems. The dialog appears with the DateTimePicker there. I can select a time and save it.

It's when I do the following in OnInitDialog that I get the error:
m_dtpStartTime.SetTime( myCOleDateTimeVar );

And the error is that the hWnd value for m_dtpStartTime is null.

alexatsearidge

ASKER

It is a CDateTimeCtrl.

AndyAinscow

Post the code in the OnInitDialog and the DoDialogExchange functions please

alexatsearidge

ASKER

// Header file
CDateTimeCtrl                              m_dtpStartTime;
virtual BOOL                              OnInitDialog                        ();
virtual void                                DoDataExchange             (CDataExchange* pDX);

-------------------------------------
void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
      CDialog::DoDataExchange(pDX);
      DDX_Control(pDX, IDC_DTPSTARTTIME, m_dtpStartTime);
}

BOOL CMyDlg::OnInitDialog()
{
      m_dtpStartTime.SetTime(m_estStartTime);

      return TRUE;
}

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AndyAinscow

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alexatsearidge

ASKER

Man... today must be an off day for me. Thanks for your patience Andy.

AndyAinscow

Everyone has less than optimal days, your welcome.