Passing data from a Modal Dialog back to the Dialog that created it - C / C++ / MFC Discussion Boards

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Re: listen on port 135

Dennis C. Dietrich15-Nov-04 8:57

Dennis C. Dietrich

15-Nov-04 8:57

K.A.L wrote:
I just wanted to make a program that could tell me if there was any computer download something from me

Well, if you start that project to learn more about networking I'd say it's a good idea. But if you just want to do it because you need a tool like that I'd say it isn't worth the trouble. A good firewall will let you know when an unauthorized process tries to listen/connect. And for detailed analysis of what's going on you can use a tool like Ethereal.

Best regards
Dennis

Re: listen on port 135

Anonymous16-Nov-04 7:00

Anonymous

16-Nov-04 7:00

Thanks for the help

How to use Chars in a CString ?

Master^Tristar14-Nov-04 6:38

Master^Tristar

14-Nov-04 6:38

Hi all.

I got a simple problem using CString, but I can't find a good solution for it.

I have a Database with a field (10 Bytes long) as a CString (using MFC ODBC).
and I need to get and set the Values of each byte.

Example:
CString text = "ABCDEFGH90"; I can get the values by using text.GetAt(0);

But if I code a staement like this I just get a lot errors..
if (text.GetAt(0) == "A") <- compiler error

or if I like to set a value
text.SetAt(0, "T") <- compiler error

What is the best way to do it without having trouble to convert the hole stuff to const char and back ??

Big THX. for helping me out !!!

Re: How to use Chars in a CString ?

John R. Shaw14-Nov-04 8:31

John R. Shaw

14-Nov-04 8:31

"A" and "T" are strings not characters.
'A' and 'T' represent character values.

if(text.GetAt(0) == 'A)) <- no error

text.SetAt(0,'T') <- no error.

INTP

I need someone to make me a program plz

Member 151788014-Nov-04 5:38

Member 1517880

14-Nov-04 5:38

This program reads .bmp files and like types them in a game screen. I would like it so to be activated by dragging a crosshair over the game screen so the program knows where the screen is

The game I am talking about is runescape.

This program would read the .bmp and type the word in and then press the key enter

If you would like to see a program like this I will show you

My email is dellnerd88@yahoo.com or aim is nellyeminem88

If you want me to explain it more email me

Re: I need someone to make me a program plz

John R. Shaw14-Nov-04 8:36

John R. Shaw

14-Nov-04 8:36

We answer programming questions here. If you want someone to write a program for you, goto guru.com and hire someone. Or goto sourceforge.net and try to get a new project going.

INTP

Re: I need someone to make me a program plz

ThatsAlok14-Nov-04 22:38

ThatsAlok

14-Nov-04 22:38

Hain Buddy,

My Suggestion is you satrt programming it,if you face any problem betwwen it ,you can post here,from my knowledge people here are eager to help you out of problem, but nobody has time to make one for you.

i think you understand what i am saying

-----------------------------
"I Think It Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

Passing data from a Modal Dialog back to the Dialog that created it

dlarkin7714-Nov-04 4:34

dlarkin77

14-Nov-04 4:34

Hi,

Can anyone please help me with this problem?

I have a dialog with a CRichEditCtrl and a button.
The user highlights a piece of text and clicks the button.
When the button is clicked, a modal Dialog is created.
This modal dialog has a CEdit and a button. The CEdit contains a variable of type CString.
The user enters text in this CEdit.
When the OK button is clicked, the text in the CEdit should replace the highlighted text in the CRichEditCtrl in the initial dialog.

When the program is executed it gives a "Debug Assertion Failed" error.
The assertion is as follows (from AFXCMN.H):

<br />
AFXCMN_INLINE void CRichEditCtrl::ReplaceSel(LPCTSTR lpszNewText, BOOL bCanUndo)<br />
	{ASSERT(::IsWindow(m_hWnd)); ::SendMessage(m_hWnd, EM_REPLACESEL, (WPARAM) bCanUndo, (LPARAM)lpszNewText); }<br />

My code is as follows:

<br />
void MyModalDialog::OnBtnOk() <br />
{<br />
	CString returnStr = m_edit;	// m_edit is the CString variable atached to the CEdit<br />
	MyProjectDlg dlg;		// the initial dialog is of class MyProjectDlg<br />
	dlg.m_fileContents.ReplaceSel(returnStr, FALSE);	// m_fileContents is the name of the CRichEditCtrl	<br />
}<br />

Thanks very much,

dlarkin77 Confused | :confused:

Re: Passing data from a Modal Dialog back to the Dialog that created it

John R. Shaw14-Nov-04 9:00

John R. Shaw

14-Nov-04 9:00

Do not try to replace the text from within the dialog. Replace the text after the dialog closes, it is easier.

MyProjectDlg dlg; // dialog type now exist
// but the window does not exist yet
// therefor, you can not send it any messages.

According to your comments: The MyProjectDlg should already exist and it should be lunching the MyModalDialog, but here you are asking MyModalDialog to create a new MyProjectDlg and replace the selected text in that (which also does not exist).

// It should look something like this
void MyProjectDlg::SomeFunction()
{
    MyModalDialog dlg;
    dlg.MySetText(...);
    if( dlg.DoModal() == IDOK )
        m_fileContents.ReplaceSel(dlg.MyGetText(), FALSE);
}

INTP

Re: Passing data from a Modal Dialog back to the Dialog that created it

dlarkin7714-Nov-04 22:58

dlarkin77

14-Nov-04 22:58

Thanks a lot John, that worked out nicely.

dlarkin77 Smile | :)

How to search a File in the Hard Disk using C++?

pubududilena14-Nov-04 3:31

pubududilena

14-Nov-04 3:31

hi all,
I want to search File whether it is in the Hard disk or not.
How do I do this?
If any one know please send me a reply.
Thanks in advance..

Re: How to search a File in the Hard Disk using C++?

Maximilien14-Nov-04 4:32

Maximilien

14-Nov-04 4:32

programatically or by using the windows explorer search/find ?

programatically, use CFileFind ( or FindNextFile and FindFirstFile )

Maximilien Lincourt
Your Head A Splode - Strong Bad

Re: How to search a File in the Hard Disk using C++?

John R. Shaw14-Nov-04 9:20

John R. Shaw

14-Nov-04 9:20

Get a copy of "Agent Ransack", it can find anything. There know there was an article here some where, but I can not find it.

You could write your own using the MS-C functions _findfirst() and _findnext() or the SDKs FindFirstFile() and FindNextFile(). The hard part is switching directories, for further searching. All the "File I/O Functions" functions are listed in the MSDN, you'll have to do a search for that exact string (not listed in index - as usual).

P.S. There is an article on "Agent Ransack" at CP.

Good Luck!

INTP

Re: How to search a File in the Hard Disk using C++?

pubududilena14-Nov-04 12:18

pubududilena

14-Nov-04 12:18

hi,
Thanks for ur reply..I found the "Agent Ransack" Article.But the problem is no free source codes in their Article.It is having exe only..

How to run exe file using C++?

pubududilena14-Nov-04 3:26

pubududilena

14-Nov-04 3:26

hi I am doing a project using MFC/C++ .I want to run a exe file when clicking a Button in the Dialog.
please reply me the way to do it.
Thanks in advance..

Re: How to run exe file using C++?

Michael Dunn14-Nov-04 4:50

Michael Dunn

14-Nov-04 4:50

See the FAQ
6.4 How do I run another program from my program?[^]

--Mike--
LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ | You Are Dumb

Re: How to run exe file using C++?

ThatsAlok14-Nov-04 18:32

ThatsAlok

14-Nov-04 18:32

There are Three Api' that can Help
Little Easy
--. WinExec()
--- ShellExecute() & ShellExecuteEx()

Little Tough for NewBies
--- CreateProcess

-----------------------------
"I Think It Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

CAsyncMonikerFile

PetoG14-Nov-04 1:31

PetoG

14-Nov-04 1:31

I have made simple program for HTTP download in the Visual Studio .NET (VC++
7.0). I have overriden MFC class CAsyncMonikerFile. I have overriden method
OnStopBinding(HRESULT hresult, LPCTSTR szError) in my derived class , but
this method wasn't called at the end of the bind operation (when all data
came). But overriden method OnStartBinding()was properly called. Can you help
me with this problem? Is there any serious bug in the MFC class
CAsyncMonikerFile in VC++ 7.0?

Re: CAsyncMonikerFile

John R. Shaw14-Nov-04 10:03

John R. Shaw

14-Nov-04 10:03

I do not know why you overrode the OnStopBinding() function/method, but is sounds like you need to call the base version in your overriden version.

OnStopBinding(...) // your version
{
    // ... what ever
    BaseClass::OnStopBinding(...);
}

INTP

Re: CAsyncMonikerFile

PetoG15-Nov-04 4:58

PetoG

15-Nov-04 4:58

Hi John,
I have to call some functions, when all data are downloaded and the OnStopBinding is right place for it. But the problem is that OnStopBinding is not called in VC++ 7.0, but in older VC++ 6.0, everything was all right (OnStopBinding is called after OnDataAvailable()).

Help!!! How to change Cursor Permanent ???

VikramDelhi13-Nov-04 23:29

VikramDelhi

13-Nov-04 23:29

Hi
I want to change the default cursor in my app. I tried following code.

bool m_bcursor;

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

// TODO: Add extra initialization here
lhCursor = AfxGetApp()->LoadCursor(IDC_CURSOR);
SetCursor(lhCursor);
m_bcursor = true; //set to true

return TRUE; // return TRUE unless you set the focus to a control
}

BOOL CTestDlg::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
// TODO: Add your message handler code here and/or call default
if(m_bcursor)
return true;
else
return CDialog::OnSetCursor(pWnd, nHitTest, message);
}

But whenever I open About Dialog, cursor it changed to default cursor.

What should I do to change cursor the moment my main dialog gets focus?

Re: Help!!! How to change Cursor Permanent ???

Jack Puppy14-Nov-04 1:19

Jack Puppy

14-Nov-04 1:19

You need to set the cursor each time the OnSetCursor message is triggered. Dump the boolean member variable, and make the handle to the cursor a member variable of the dialog box:

HCURSOR m_hCursor;

Initialize it in the constructor:

CMyDialog::CMyDialog() : m_hCursor(NULL)
{
m_hCursor = AfxGetApp()->LoadCursor(IDC_MYCURSOR);
}

and in OnSetCursor()...

if (m_hCursor != NULL)
{
SetCursor(m_hCursor);
return TRUE;
}

// default stuff here

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

Re: Help!!! How to change Cursor Permanent ???

John R. Shaw14-Nov-04 9:33

John R. Shaw

14-Nov-04 9:33

Good advice! But you do not need to maintain a copy of the cursor handle.

From MSDN:
"The LoadCursor function loads the cursor resource only if it has not been loaded; otherwise, it retrieves the handle to the existing resource."

In other words, the system maintains a copy of the cursor handle for you.

SetCursor(AfxGetApp()->LoadCursor(IDC_MYCURSOR));

The cursor is a resource included in the .exe (or sytem resoruces). Therefore, you do not need to test the handle. If the handle returned is not valid then there is a much bigger problem involved (and the program has locked up or crashed, do to lack of memory).

INTP

Re: Help!!! How to change Cursor Permanent ???

gamitech15-Nov-04 19:54

gamitech

15-Nov-04 19:54

can you write the W32 api code for changing a cursor. I never got to do it. . ..
I hate cursors Smile | :)

gabby

Re: Help!!! How to change Cursor Permanent ???

VikramDelhi16-Nov-04 8:41

VikramDelhi

16-Nov-04 8:41

hi Jack Rabbit Rose | [Rose]

thanks a lot.
it worked for me. Smile | :)

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