C / C++ / MFC

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

11-Oct-11 20:58

Hi there, I have an edit box control in a dialog and a button which opens another dialog... I need to learn how can I use main dialog's aditbox text in opened one's editbox (Data transfer)... Please I need urgent help... Frown | :(

Re: DDX_Text

App_11-Oct-11 21:42

App_

11-Oct-11 21:42

use DDX_Text

An example of DDX_Text usage

enhzflep11-Oct-11 21:43

enhzflep

11-Oct-11 21:43

Howdy, you'll need the HWND of each dialog and the INT identifier of each control, or you'll need the HWND of each edit control.I'll assume the first.

C++

HWND editSrc, editDst;
char *szBuffer;
int stringLength;

editSrc = GetDlgItem(dlg1, IDC_EDITBOX1);
editDst = GetDlgItem(dlg2, IDC_EDITBOX2);

stringLength = GetWindowTextLength(editSrc);
szBuffer = new char[stringLength+1];
ZeroMemory(szBuffer, stringLength+1);
GetWindowText(editSrc, szBuffer, stringLength);

SetWindowText(editDst, szBuffer);
delete szBuffer;

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

Richard MacCutchan11-Oct-11 21:46

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

11-Oct-11 21:46

See my response for simpler functions.

Unrequited desire is character building. OriginalGriff

enhzflep11-Oct-11 23:31

enhzflep

11-Oct-11 23:31

:facepalm:
Of course!

Cheers Richard.

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

Madhu Nair11-Oct-11 21:44

Madhu Nair

11-Oct-11 21:44

Keep a public CString member variable in Child dialog class, set the member variable before calling the DoModal() or Create function of child dialog. Call SetWindowText of edit control in InitDialog.

for. eg

If CMainDlg is your Main dialog class and CChildDialog be the child.
in header of CChildDialog you declare a public member variable to hold the string

C++

class CChildDialog : public CDialog
{
 public :
 CString m_strText;
}

and in your button click function of CMainDlg do this

C++

void CMainDlg::OnClick_Button()
{
  
  CChildDialog oChildDlg; 
  oChildDlg.m_strText = strText; // This should be the edit box value
  oChildDlg.DoModal();
}

Set the variable value in CChildDialog's OnInitDialog as

C++

CChildDialog::OnInitDialog()
{
  SetDlgItemText(ID_OF_YOUR_EDIT, m_strText);
}

You can also set the text by modifying your constructor of CChildDialog, such as

C++

CChildDialog::CChildDialog(CString strText)

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

symeramon11-Oct-11 22:14

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

11-Oct-11 22:14

From class wizard, maindialog's member variables I added a member variable to the editbox which gets the editbox's value and then as you said, I equalize each variables but than it returns nothing from main dialog ??? Frown | :(

Richard MacCutchan11-Oct-11 21:45

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

11-Oct-11 21:45

You could use GetDlgItemText()[^] and its counterpart SetDlgItemText().

Unrequited desire is character building. OriginalGriff

symeramon11-Oct-11 22:21

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

11-Oct-11 22:21

I did it as Mahdu replied and by your hint... like

C++

void mainform::OnBnClickedButton2()
{
			GetDlgItemText(IDC_EDIT1,newform.strtext);
}

BOOL newform::OnInitDialog()
{
			SetDlgItemText(IDC_EDIT1, strtext);
}

THANKS TO YOU ALL FOR REPLIES PEOPLE!!! YOU ARE GREAT... Smile | :)

)

David Crow12-Oct-11 3:10

David Crow

12-Oct-11 3:10

How about something like:

CMainDlg::OnButtonClick()
{
    CString strText;
    m_edit.GetWindowText(strText);
 
    CSecondDlg dlg;
    dlg.setData(strText);
 
    dlg.DoModal();
}
 
CSecondDlg::setData( LPCTSTR lpszText )
{
    m_strText = lpszText;
}
 
CSecondDlg:OnInitDialog()
{
    m_edit.SetWindowText(m_strText);
}

I'm a big fan of weak coupling, so tying these two dialogs together like this would not be my first choice. I would opt for a "data transfer" or "liaison" class instead. This is a one-instance class where you would put all of your shared data.

"One man's wage rise is another man's price increase." - Harold Wilson

"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

"Show me a community that obeys the Ten Commandments and I'll show you a less crowded prison system." - Anonymous

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

symeramon12-Oct-11 3:43

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

12-Oct-11 3:43

Thanks for your reply David... I would like to criticise your post if I was more skilled... But seems Cool | :cool:

to me for now... Maybe not, in the future?? Laugh | :laugh:

Just joking, thanks again...

symeramon12-Oct-11 3:48

Re: MFC - how to get an edit box text from another dialog?? (Constructor)

12-Oct-11 3:48

By the way, you can just explain this :

C++

CFileDialog *pOpenDlg=new CFileDialog(FALSE,".txt",NULL,OFN_OVERWRITEPROMPT,"Text Files (*.txt)|*.txt|All Files(*.*)|*.*||");

if you want some more charity from our heavenly father?? Smile | :)

PLEASE!

Chandrasekharan P12-Oct-11 21:38

Chandrasekharan P

12-Oct-11 21:38

Try and put this code in a button click and see what happens. then you will understand why is this code required.

Every new day is another chance to change your life.

LANGID

zon_cpp11-Oct-11 20:52

zon_cpp

11-Oct-11 20:52

hi,
how do i get a list of LANGID in array?
i want initialize an array with LANGIDs (for example i do this in a loop).

int count; // = ? number of LANGID
WORD* arr = new WORD[count];
// now how do id initialize this array completely?

please help me

Zo.Naderi-Iran

Re: LANGID

Richard MacCutchan11-Oct-11 21:42

11-Oct-11 21:42

The current list should be in file WinNT.h; search for keyword LANG_NEUTRAL. See also second response.

Unrequited desire is character building. OriginalGriff

modified 12-Oct-11 5:18am.

Re: LANGID

Richard MacCutchan11-Oct-11 23:18

11-Oct-11 23:18

Further research suggests you should use one of the locale support functions such as EnumSystemLocalesEx()[^].

Unrequited desire is character building. OriginalGriff

Re: LANGID

Randor 11-Oct-11 23:34

Randor

11-Oct-11 23:34

zon_cpp wrote:
how do i get a list of LANGID in array?

Hi,

I believe Microsoft discourages using the MLANG interface. At least that's what it use to say on MSDN. However I looked just now and could not find the do-not-use disclaimer. With that being said... A few years ago I managed to figure out how to use some of the vaguely documented interfaces. Here is what I use to enumerate available locales:

C++

HRESULT hr = CoInitialize(NULL);
if(SUCCEEDED(hr))
{
	IMultiLanguage * pml;
	hr = CoCreateInstance(CLSID_CMultiLanguage,NULL,CLSCTX_ALL,IID_IMultiLanguage,(void**)&pml);
	if(SUCCEEDED(hr))
	{
		RFC1766INFO info;
		ULONG num;
		IEnumRfc1766 *rfc1766;
		hr = pml->EnumRfc1766(&rfc1766);
		if(SUCCEEDED(hr))
		{
			while(S_OK == rfc1766->Next(1,&info,&num)) 
			{
				WORD wLangID = LANGIDFROMLCID(info.lcid);
				//You can also get the locale name such as 'English' or 'Chinese' at info.wszLocaleName[32]
			}
		}
	}
	pml->Release();
}
CoUninitialize();

Best Wishes,
-David Delaune

CListCtrl

john563211-Oct-11 20:43

john5632

11-Oct-11 20:43

Hi,

How to bold a specific listcontrol row?

zon_cpp11-Oct-11 21:03

zon_cpp

11-Oct-11 21:03

in OnNMCustomdraw(NMHDR *pNMHDR, LRESULT *pResult) event of CListCtrl

void CMyList::OnNMCustomdraw(NMHDR *pNMHDR, LRESULT *pResult)
{
    LPNMLVCUSTOMDRAW pLVCD reinterpret_cast<LPNMLVCUSTOMDRAW>(pNMHDR);
    switch(pLVCD->nmcd.dwDrawStage)
    {
         case CDDS_ITEMPREPAINT:
             if(pLVCD->nmcd.dwItemSpec == 1)   // if it is specified row
             {
                 pLVCD->clrTextBk = RGB(235,235,235);
                 // and doing other
             }
         break;
    }
}

Zo.Naderi-Iran

john563211-Oct-11 22:00

john5632

11-Oct-11 22:00

It will chage the color of text, I need to make it BOLD

Randor 11-Oct-11 23:10

Randor

11-Oct-11 23:10

Hi,

Modify the code zon_cpp gave you and use something like this in the CDDS_ITEMPREPAINT case:

C++

HFONT hOldFont = (HFONT)SelectObject(pLVCD>hdc, m_Font);
// Draw your text... you can get the row/column text using GetItemText()
// You can get the row# using pLVCD->nmcd.dwItemSpec
// And get the column# using pLVCD->iSubItem
// You can tell the CListCtrl *not* to draw over what you just did by setting *pResult = CDRF_SKIPDEFAULT;
SelectObject(pLVCD>hdc, hOldFont);

In your header add:

C++

CFont m_Font;

In your dialog constructor add something like:

C++

m_Font.CreateFont(13,0,0,0,FW_NORMAL,0,0,0,ANSI_CHARSET,OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,ANTIALIASED_QUALITY,DEFAULT_PITCH | FF_DONTCARE,_T("MS Shell Dlg 2"));

Best Wishes,
-David Delaune

how to write/read in text file with mfc project??

Rolf Kristensen12-Oct-11 2:24

Rolf Kristensen

12-Oct-11 2:24

Inherit from CGridListCtrlEx - Grid Control Based on CListCtrl[^] and override CGridListCtrlEx::OnDisplayRowFont()

antonio34311-Oct-11 7:29

antonio343

11-Oct-11 7:29

I'm trying to read text from a text file. I look for in msdn how to read and write in text file, and I found this:
http://msdn.microsoft.com/es-es/library/6337eske.aspx[^]

I made this funtion to read from my text file:

void CDlgResultados::loadFromFile(void)
{
	CString path= GetUserHomeDir() + _T("\\Documents\\file.txt");
	
	TCHAR	szBuffer[256]; 
	UINT    nActual = 0; 
	CFile	myFile;

	if ( myFile.Open(path, CFile::modeCreate |   
	   CFile::modeRead ) )
	{
	   myFile.Write( szBuffer, sizeof( szBuffer ) ); 
	   myFile.Flush();
	   myFile.Seek( 0, CFile::begin );
	   nActual = myFile.Read( szBuffer, sizeof( szBuffer ) ); 
	}
	m_Edit.SetWindowTextW(szBuffer);
}

But when I run the app and I press the button to read the file, I get a error that it said:
You dont have acces to this file.

Re: how to write/read in text file with mfc project??

Richard MacCutchan11-Oct-11 7:49