Text editor in vc++

lolici

Hi everyone! I need to "send" data in a notepad every time I write double numbers on edit control and press save. I wrote some code but my dialog (where the edit control is) don't even open when I run the executable. What I've done so far:

void CDataDialog::OnBnClickedSave()
{
// TODO: Add your control notification handler code here
CFileDialog dlg(FALSE, L"Text Files (*.txt)|*.txt|Texr Files (*.h)|*.h|", NULL, OFN_OVERWRITEPROMPT, L"Text Files (*.txt)|*.txt|Text Files (*.h)|*.h|");

CStdioFile file;

CString buffer;
CString textfile;

if (dlg.DoModal() == IDOK)
{
	file.Open(dlg.GetFileName(), CStdioFile::modeCreate | CStdioFile::modeWrite);
	dlg.GetFileName();

	file.WriteString(buffer);

	file.Close();
}

}

void CDataDialog::OnEnChangeEdit1()
{
// TODO: If this is a RICHEDIT control, the control will not
// send this notification unless you override the CDialog::OnInitDialog()
// function and call CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the mask.

// TODO:  Add your control notification handler code here
UpdateData(TRUE);

}

I think I must write some code here so the dialog box work fine but I can't it.

void CInputView::OnLinefeaturesData()
{
// TODO: Add your command handler code here
CInputDoc* pDoc = GetDocument();
CDataDialog DialogWindow;
}

Jochen Arndt

You have to show the dialog after it has been created:

void CInputView::OnLinefeaturesData()
{
// TODO: Add your command handler code here
CInputDoc* pDoc = GetDocument();
CDataDialog DialogWindow;
// Now show the dialog
DialogWindow.DoModal();
}

lolici

Great!!!I did it!! but how can I save what I write on edit box in a .txt. It worked fine but I din't manage to save what I wrote! Thanks again for your response!! :)

Jochen Arndt

Just get the text from the edit box using GetWindowText:

CString buffer;
// If you have a class member variable for the CEdit in your CDataDialog class:
m_editBox.GetWindowText(Buffer);
// If not, you have to use the ID:
CEdit *pEdit = (CEdit*)GetDlgItem(IDC_OF_THE_EDIT_BOX);
pEdit->GetWindowText(buffer);

lolici

I did it but I didn't manage to save them again. Also when I pressed this message appeared: "Exception thrown at 0x104420C5 (mfc140ud.dll) in Input.exe: 0xC0000005: Access violation reading location 0x00000020. If there is a handler for this exception, the program may be safely continued.------>Break, Continue, Ignore"

lolici

Actually, I fixed the second problem!! But still didn't saved in txt.

Jochen Arndt

Then use the debugger to see what happens (e.g. by setting a break point somewhere after the output file has been selected using the CFileDialog). You might also check if file.Open was successful. But if that fails calling file.WriteString should throw an execption.

lolici

I'll check it!Thank you very mush for your help!! :)