Re: GetWindowText wont work! - C / C++ / MFC Discussion Boards

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Re: WM_CLOSE or WM_DESTROY

Nish Nishant7-Dec-01 17:10

Nish Nishant

7-Dec-01 17:10

You send/post WM_CLOSE to a window when you want to close it. Normally the WM_CLOSE handler then calls DestroyWindow which sends a WM_DESTROY message to the window. later the WM_NCDESTROY message is sent. This is the last message that window receives

Nish

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Re: WM_CLOSE or WM_DESTROY

Henry Jacobs8-Dec-01 10:38

Henry Jacobs

8-Dec-01 10:38

I use WM_CLOSE to ask the user if they want to save the document they are working on. If they click cancel I don't call DestroyWindow and the program returns to its previous state. I use WM_DESTROY to release all my resources.

How can you make a dialog show up in the taskbar?

Cathy7-Dec-01 14:14

Cathy

7-Dec-01 14:14

I am creating a utility that does not have a main window. I show different dialogs, one after the other, depending on the situation. It seems the 1st put up dialog gets to be the taskbar button. I would like the next dialog to get its own taskbar button, but I can't figure out how to do it.

Please enlighten me,
Cathy

Cathy

Re: How can you make a dialog show up in the taskbar?

Michael Dunn7-Dec-01 16:50

Michael Dunn

7-Dec-01 16:50

Set the WS_EX_APPWINDOW extended style.

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Re: How can you make a dialog show up in the taskbar?

Cathy10-Dec-01 7:59

Cathy

10-Dec-01 7:59

Thanks, but I already tried that with no luck. I changed it in the .rc file. Was that the correct place?

Cathy

GetWindowText wont work!

Rickard Andersson²⁰7-Dec-01 11:33

Rickard Andersson²⁰

7-Dec-01 11:33

I want to get the title of Internet Explorer:

#include <windows.h>

LPSTR strIE;
LPSTR str2;

HWND IE;

int WINAPI WinMain(HINSTANCE,HINSTANCE,LPSTR,int)
{
IE = FindWindow("IEFrame",NULL);
if( IE != NULL )
{
GetWindowText(IE, strIE, GetWindowTextLength(IE));
MessageBox(NULL, (LPCTSTR) strIE,"",MB_OK);
}
return 0;
}

But no MessageBox(...) at all will appear! Frown | :(

What is wrong?

------------------------------
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------------------------------

Re: GetWindowText wont work!

Erik Thompson7-Dec-01 12:08

Erik Thompson

7-Dec-01 12:08

The problem is that your whole app should be exploding. You haven't actually allocated any memory for your string, so the behavior will certainly be unexpected. Try allocating enough space for the string first then calll GetWindowText passing in the amount of space you actually allocated then do the message box then remember to clean up the memory you allocated. A good start would be to learn C/C++ programming before jumping head first into windows development.

Cheers,
-Erik
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
My thoughts are my own and reflect on no other.

Re: GetWindowText wont work!

User 66588-Dec-01 3:26

User 6658

8-Dec-01 3:26

Since the IEframe does not belong to your app's process you need to send the WM_GETTEXT message to the hwnd of the IE. This is the correct way:

TCHAR wndText[512];
::SendMessage(IE,WM_GETTEXT,sizeof(wndText)/sizeof(TCHAR),(LPARAM)(void*)wndText);

regards

modified 12-Sep-18 21:01pm.

Re: GetWindowText wont work!

Masaaki Onishi8-Dec-01 4:52

Masaaki Onishi

8-Dec-01 4:52

Hello, the codegurus around the world.;)

I think that your approaches works to get the text in Edit box as
Paul Delicika sais in MSDN artile. Confused | :confused:

The following code works for me.

void CCodeTestDlg::OnOK() 
{
	// TODO: Add extra validation here
	CString ieTitle;
	TCHAR title[MAX_PATH];

	CWnd *pWnd = CWnd::FindWindow ("IEFrame",NULL);

	if (pWnd) {
		MessageBox ("IE is opened!", "Info");

		// By MFC
		pWnd->GetWindowText (ieTitle);
		GetDlgItem (IDC_MYSTATIC)->SetWindowText (ieTitle);

		// By Win32 API
		::GetWindowText (pWnd->m_hWnd, title, MAX_PATH);
		MessageBox (title, "Test");

	}

	else {
		MessageBox ("IE isn't opened!", "Info");
	}

//	CDialog::OnOK();
}

Please, don't send me your email about your questions directly.
Have a nice day!
Sonork - 100.10571:vcdeveloper Wink | ;)

-Masaaki Onishi-

VC++ Package Deployment

Vu Nguyen7-Dec-01 11:10

Vu Nguyen

7-Dec-01 11:10

Hi All!

under MS Visual Studio, we have a tool call Package Deployment Wizard for Visual Basic. This tool helps make a setup package for an EXE file of VB. It attaches all the dll files to the VB exe file basically. Do we have anything like that for VC++? I ask this because one of my applications does not run under NT4.0 SP6 when I compile it using "use MFC in a shared dll". The file needed is MFC42.dll;

Thanks
Vu

vucsuf

Re: VC++ Package Deployment

Nemanja Trifunovic7-Dec-01 11:44

Nemanja Trifunovic

7-Dec-01 11:44

There is InstallShield for this.

I vote pro drink Beer | [beer]

Re: VC++ Package Deployment

Vu Nguyen7-Dec-01 12:25

Vu Nguyen

7-Dec-01 12:25

Hi!

I use install shield to make setup disk. However, the installed package does not fix the problem. The OS still complains about the MFC42.dll
Do I miss anything?

Thanks

Vu

vucsuf

Re: VC++ Package Deployment

Fazlul Kabir7-Dec-01 12:05

Fazlul Kabir

7-Dec-01 12:05

VC++ 7 has a built-in setup feature, that should be enough for most deployment needs.

// Fazlul

Get RadVC today! Play RAD in VC++
http://www.capitolsoft.com

Re: VC++ Package Deployment

Cathy7-Dec-01 14:43

Cathy

7-Dec-01 14:43

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnvc60/html/redistribvc6.asp

and

http://support.microsoft.com/directory/article.asp?ID=KB;EN-US;Q259403

Now hopefully I will have enough good karma for someone to answer my question.

Cathy

RAS problem

7-Dec-01 10:28

I have to detect if there is a RAS connection active on the machine, so I wrote the following code

RASCONN * lpRasConn;
DWORD lpcb;
DWORD lpcConnections;

lpRasConn = (LPRASCONN) GlobalAlloc(GPTR, sizeof(RASCONN));
lpRasConn->dwSize = sizeof(RASCONN);
lpcb = sizeof(RASCONN);

int nRet = RasEnumConnections(lpRasConn, &lpcb, &lpcConnections);
if (nRet != 0)
{
TRACE("RasEnumConnections failed: Error = %d", nRet);
return(FALSE);
}
else
{
TRACE("The following RAS connections are currently active\n\n");
return(TRUE);
for (DWORD i = 0; i < lpcConnections; i++)
{
TRACE("Entry name: %s\n", lpRasConn->szEntryName);
lpRasConn++;
}
return(TRUE);
}
The fuction fails everytime and I always have the same error message (even I test it on different computers)
the message is "632 : The structure size is incorrect".

Any help would be great..
Thanks,

Fakhri

The best way to predict the future is to create it..

Re: Guess - RAS problem

Masaaki Onishi7-Dec-01 13:24

Masaaki Onishi

7-Dec-01 13:24

Hello, the codegurus aroudn the world.;)

This is the latest RASCONN struct.

typedef struct _RASCONN { 
  DWORD     dwSize; 
  HRASCONN  hrasconn; 
  TCHAR     szEntryName[RAS_MaxEntryName + 1]; 
 
#if (WINVER >= 0x400) 
  TCHAR    szDeviceType[ RAS_MaxDeviceType + 1 ]; 
  TCHAR    szDeviceName[ RAS_MaxDeviceName + 1 ]; 
#endif 
#if (WINVER >= 0x401)
  TCHAR    szPhonebook [ MAX_PATH ];
  DWORD    dwSubEntry;
#endif 
#if (WINVER >= 0x500)
  GUID     guidEntry;
#endif
#if (WINVER >= 0x501)
  DWORD     dwSessionId;
  DWORD     dwFlags;
  LUID      luid;
#endif
} RASCONN ;

So, if we didn't download the latest Microsoft SDK, and didn't get the ras.h file, RASCONN struct size may be conflicted in rasapi32.dll in OS.

To avoid this kind of the conflict, you may be better explicit intialization of RASCONN struct in your code. Otherwise, you had better install the latest Microsoft SDK.

However, this is my guess. Dead | X|

Please, don't send me your email about your questions directly.
Have a nice day!
Sonork - 100.10571:vcdeveloper Wink | ;)

-Masaaki Onishi-

Re: Guess - RAS problem

7-Dec-01 15:01

Thank you, it was helpful Wink | ;)

The best way to predict the future is to create it..

problem abot replace system recycle

yangyanming7-Dec-01 10:25

yangyanming

7-Dec-01 10:25

i have implemented the funcion in my filter driver.
a problem is i need to change the shell's activity.
when user only press DEL, the shell will not send the
file to recycle and delete forever.
i know i can change the recycle's propertiy. but i want to
set that value in program and not allow user to set back.
how can i do this? thanks.

Date Conversion

Lilian Chan-Grant7-Dec-01 9:49

Lilian Chan-Grant

7-Dec-01 9:49

The following code:

// Get file accessed date from _stat
struct _stat buff;

_tstat ( (TCHAR*)m_szFilePath, &buff);

TCHAR* l_szTime = _tctime(&buff.st_atime);

TCHAR* p_eol = _tcsstr(l_szTime, _T("\n"));

// Remove the '\n' from the end of the returned string from atime.
*p_eol = L'\0';

// Return the file accessed date.
*p_szDate = (_bstr_t) l_szTime;

produces Fri Dec 07 11:23:13 2001.

Does anyone know how to get the prettier way Properties does it? (Today, December 7, 2001, 11:23 AM)

Please let me know if there is such a way. If not, does someone know of any code that does the formatting?

Thanks,
Lilian

Re: Date Conversion

Michael Dunn7-Dec-01 16:53

Michael Dunn

7-Dec-01 16:53

Lilian Chan wrote:
If not, does someone know of any code that does the formatting?

GetDateFormat() and GetTimeFormat() format dates/times using the user's language and regional settings automatically.

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Re: Date Conversion

Not Active7-Dec-01 17:23

Not Active

7-Dec-01 17:23

Now you tell me! Big Grin | :-D

Just the other day I was trying to do the same thing and couldn't remember the function. I ended up using strftime. Still works but I wanted GetDateFormat()

Re: Date Conversion

Lilian Chan-Grant2-Jan-02 6:56

Lilian Chan-Grant

2-Jan-02 6:56

Thanks, Mike, for your response. I should have been more specific. I need to take that TCHAR * and convert it to a prettier format. My application needs to display the creation, accessed, and modified dates of a file. If there is no convenience function to convert the date, I guess I'll just have to write my own Frown | :(

Thanks,
Lilian Smile | :)

Re: Date Conversion

Ravi Bhavnani2-Jan-02 7:11

Ravi Bhavnani

2-Jan-02 7:11

strftime()

/ravi

"There is always one more bug..."
ravib@ravib.com
http://www.ravib.com

Re: Date Conversion

Michael Dunn2-Jan-02 7:30

Michael Dunn

2-Jan-02 7:30

If you want your output to conform to the user's locale settings (and you should) you'll need to use something other than stat() (like GetFileTime()), or use CTime which can convert from time_t to SYSTEMTIME.

--Mike--
My really out-of-date homepage
Buffy's on. Gotta go, bye!
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Re: Date Conversion

Lilian Chan-Grant4-Jan-02 8:01

Lilian Chan-Grant

4-Jan-02 8:01

Thanks, Mike and Ravi!

With your suggestions, I was able to make my stuff work. It drives me crazy, since it seems so trivial. We have to keep our HMI people happy.

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