C / C++ / MFC

7-Mar-07 23:50

Hai,

Good Evening....

I was working with the controls of textbox i have a doubt in that can anyone
clear it....

I created a form in MFC by having various controls.
1.In that i have a textbox in which iam entering some values.
2.I want that value to be printed in the message box...
Can anyone please tell me how to do....

Thanks
Harshadha

Hamid_RT7-Mar-07 23:58

7-Mar-07 23:58

You have a editbox CEdit m_EDit; and it has values "12345" now you want to show these values use of m_Edit1.GetWindowText();

WhiteSky

harshadha8-Mar-07 0:02

8-Mar-07 0:02

hai,

i cant understand ..
Iam passing values to the editbox in run time ,then if i click a command button iam displaying a messagebox,where i want these value to be shown...

Harshadha

Newbie008-Mar-07 0:07

Newbie00

8-Mar-07 0:07

Use the text got by m_Edit1.GetWindowText(); with the MessageBox method...

Hamid_RT8-Mar-07 0:11

8-Mar-07 0:11

When click button use of

CEdit m_Edit;
CString str;
m_Edit.GetWindowText(str);
MessageBox(str);

And if you want to set a value dynamicly for editbox use of SetWindowText

WhiteSky

Paresh Chitte8-Mar-07 0:11

Paresh Chitte

8-Mar-07 0:11

Use WM_KILLFOCUS for your text box and get the text using GetWindowText. I hope this is you want.

harshadha8-Mar-07 0:14

Re: doubt in textbox controls used in MFC [modified]

8-Mar-07 0:14

Hai,,
I cant really understand i brief my question..

Iam entering the values in edit box during runtime and displaying it...

CEdit m_ce;
m_ce.GetWindowText();
TCHAR szMsg[256];
wsprintf(szMsg,_T("hEIGHT: %ld "),m_ce);
MessageBox(szMsg,NULL,MB_OK);

error C2661: 'GetWindowTextA' : no overloaded function takes 0 parameters

Thanks For Spending Your Precious Time

Harshadha

Paresh Chitte8-Mar-07 0:18

Paresh Chitte

8-Mar-07 0:18

int GetWindowText( LPTSTR lpszStringBuf, int nMaxCount ) const;<br />
void GetWindowText( CString& rString ) const;

Use as below

CEdit m_ce; <br />
CString str;<br />
m_ce.GetWindowText(str);<br />
TCHAR szMsg[256];<br />
long lValue = _ttol((LPCTSTR)str);<br />
wsprintf(szMsg,_T("hEIGHT: %ld "),lValue);<br />
MessageBox(szMsg,NULL,MB_OK);

-- modified at 6:26 Thursday 8th March, 2007

harshadha8-Mar-07 0:47

8-Mar-07 0:47

Hai,

Iam sorry for troubling you again but iam getting memory error like asking
whether to retry or abort...
If i click ignore its displaying msgbox with 0 in it..

Thanks

Harshadha

Paresh Chitte8-Mar-07 1:15

Paresh Chitte

8-Mar-07 1:15

have you done validation on the text box like the input is only numeric value and not alphabet nor alphanumeric...

harshadha8-Mar-07 1:19

8-Mar-07 1:19

PS@Codeproj8-Mar-07 1:20

PS@Codeproj

8-Mar-07 1:20

Hi,

I think u havent created a member variable for the editbox. Simply you would have written like
CEdit m_ce;
It ll not work out.
First you need to create a member variable for the edit box using class wizard with the control type as Edit.
say, the member variable is m_editChar. then,

CString str;
m_editChar.GetWindowText(str);
MessageBox(str);

now, the str ll give u the value entered by the user in the edit box.

Hope this ll solve your problem.

Thanks & Rgds,
Sri..

harshadha8-Mar-07 1:32

8-Mar-07 1:32

Thanks i got it..

Hamid_RT8-Mar-07 0:22

8-Mar-07 0:22

I wrote for you an exmaple and also GetWindowText needs to a parameter for hold values

WhiteSky

David Crow8-Mar-07 3:13

David Crow

8-Mar-07 3:13

harshadha wrote:

TCHAR szMsg[256];
wsprintf(szMsg,_T("hEIGHT: %ld "),m_ce);

So then why are not using CString with your MFC application?

harshadha wrote:
MessageBox(szMsg,NULL,MB_OK);

Consider using AfxMessageBox().

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

harshadha8-Mar-07 1:32

8-Mar-07 1:32

Hai,

Thanks a lot to all...
i got the output....

Harshadha

Hamid_RT8-Mar-07 6:55

8-Mar-07 6:55

I hope you got your answer with best way Wink | ;)

WhiteSky

"Displaying a file"

harsh_29617-Mar-07 23:41

harsh_2961

7-Mar-07 23:41

Hi,

If iknow the filename and its path i hould be able to open and display that file.if any ideas on how to do it please let me know..

harsha

Hamid_RT7-Mar-07 23:43

7-Mar-07 23:43

Which? Open a file or get path of a file?

WhiteSky

harsh_29617-Mar-07 23:59

harsh_2961

7-Mar-07 23:59

i should be able to open and display the contents to the user ..

harsha

Hamid_RT8-Mar-07 0:08

8-Mar-07 0:08

Use of CFile::Read

WhiteSky

Programm3r7-Mar-07 23:46

Programm3r

7-Mar-07 23:46

Have you tried the following:
Open File

HANDLE CreateFile(
  LPCTSTR lpFileName,
  DWORD dwDesiredAccess,
  DWORD dwShareMode,
  LPSECURITY_ATTRIBUTES lpSecurityAttributes,
  DWORD dwCreationDisposition,
  DWORD dwFlagsAndAttributes,
  HANDLE hTemplateFile
);

Read Contents:

BOOL ReadFile(
  HANDLE hFile,                // handle of file to read
  LPVOID lpBuffer,             // pointer to buffer that receives data
  DWORD nNumberOfBytesToRead,  // number of bytes to read
  LPDWORD lpNumberOfBytesRead, // pointer to number of bytes read
  LPOVERLAPPED lpOverlapped    // pointer to structure for data
);

Read File[^]

Open File[^]
Regards,

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Programm3r
My Blog: ^_^

harsh_29618-Mar-07 0:03

harsh_2961

8-Mar-07 0:03

i dont want to read or open or create a file.. i want to display a file to the user say when user clicks a button. will this help in that regard ?

harsha