Re: CString to char* - C / C++ / MFC Discussion Boards

YaronNir8-May-06 3:42

8-May-06 3:42

actually this result as well hr=INVALID_ARG.......

help??

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Re: Retrieving "My documents" folder

Hamid_RT8-May-06 4:07

Hamid_RT

8-May-06 4:07

use CSIDL_PERSONAL
it seem that your problem is same with
here[^]

Re: Retrieving "My documents" folder

YaronNir8-May-06 4:19

YaronNir

8-May-06 4:19

10x!

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

Re: Retrieving "My documents" folder

Eric Dahlvang8-May-06 4:03

Eric Dahlvang

8-May-06 4:03

Do you want to create a file in the My Documents folder?

This is from the VS 2005 help file:
szPath will contain the path to My Documents.
If you just want the path in szPath, and don't need to create a file, then don't send in the CSIDL_FLAG_CREATE flag.

TCHAR szPath[MAX_PATH];
if(SUCCEEDED(SHGetFolderPath(NULL, 
                             CSIDL_PERSONAL|CSIDL_FLAG_CREATE, 
                             NULL, 
                             0, 
                             szPath))) 
{
    PathAppend(szPath, TEXT("New Doc.txt"));
    HANDLE hFile = CreateFile(szPath, ...);
}

----------
There go my people. I must find out where they are going so I can lead them.
- Alexander Ledru-Rollin

Re: Retrieving "My documents" folder

YaronNir8-May-06 4:19

YaronNir

8-May-06 4:19

10x!

Yaron

Interface basics click here :
http://www.codeproject.com/com/COMBasics.asp

don't forget to vote Smile | :)

CString to char*

big_denny_2008-May-06 3:05

big_denny_200

8-May-06 3:05

hi all

for example if I have

CString sVal = _T("something"); //unicode

how to assign sVal to a const char * variable ?

const char * pVal = ... ?

thanks

Re: CString to char*

Try8-May-06 3:14

Try

8-May-06 3:14

Using strcpy() function

Re: CString to char*

Monty²8-May-06 3:14

Monty²

8-May-06 3:14

big_denny_200 wrote:
const char * pVal = ... ?

Try this

const char * pVal = (LPCTSTR)sVal;

Large cats have been scientifically proven to dream. Among the recurring themes are balls of yarn, mice, and half-blind overweight shackled oryx.

Re: CString to char*

Hamid_RT8-May-06 3:27

Hamid_RT

8-May-06 3:27

CString str=_T("Hello");
const char *buffer;

buffer=(const char*)LocalAlloc(LPTR,20);
strcpy((char*)buffer,str);
LocalFree((HLOCAL)buffer);

Re: CString to char*

Russell^'8-May-06 3:28

Russell^'

8-May-06 3:28

Monty2 wrote:
Try this

const char * pVal = (LPCTSTR)sVal;

Can I add something?
Using this way we have to be carefull using pVal in WRITE mode: the pointer points to the local CString object!

Hope it helps.

Re: CString to char*

Monty²8-May-06 3:30

Monty²

8-May-06 3:30

_Russell_ wrote:
Using this way we have to be carefull using pVal in WRITE mode: the pointer points to the local CString object!

Ofcourse

Thanks for the correction.

Large cats have been scientifically proven to dream. Among the recurring themes are balls of yarn, mice, and half-blind overweight shackled oryx.

Re: CString to char*

V_shr8-May-06 4:03

V_shr

8-May-06 4:03

const char * pVal = sVal.c_str();

Re: CString to char*

Michael Dunn8-May-06 6:53

Michael Dunn

8-May-06 6:53

The other answers won't work in a Unicode build. You need to convert your CString to ANSI to assign it to a char* variable. The quickest way is:

#include <atlconv.h>
 
{
USES_CONVERSION;
CString sVal = _T("something");
const char* p = T2CA(LPCTSTR(sVal));
}

--Mike--
Visual C++ MVP Cool | :cool:

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Platform

yoti118-May-06 3:00

yoti11

8-May-06 3:00

Hello,
How can I check on which paltform the program is running?
(Such as: windows 2003, NT, 98 etc).
Thanks.

-- modified at 9:34 Monday 8th May, 2006

Re: Platform

Monty²8-May-06 3:11

Monty²

8-May-06 3:11

Try GetVersionEx[^]

Large cats have been scientifically proven to dream. Among the recurring themes are balls of yarn, mice, and half-blind overweight shackled oryx.

managed vs unmanaged code

Try8-May-06 2:12

Try

8-May-06 2:12

What are the advantages of unmanaged code over managed code and vice versa?

Re: managed vs unmanaged code

Maxwell Chen8-May-06 4:47

Maxwell Chen

8-May-06 4:47

acemahesh@yahoo.co.in wrote:
the advantages of unmanaged code over managed code and vice versa

Freedom, flexibility, ...

Maxwell Chen

Problem with ALT+TAb

Ganesh_T8-May-06 1:48

Ganesh_T

8-May-06 1:48

I have created an applicatio having six child dialog. WHen you press ALT+Tab when window is in focus another window which was in focus gets displayed and again if I try doing the same thing the orginal window is displayed .....

But one of my child dialog some thread are executing and IF i press ALT+tab to display it again the windows does not appears but the process continues. When the threads process is completed the window functions well...

I tried with VK_TAB and VK_ALT but it does not work

Cheers
"Peace of mind through Technology"

Re: Problem with ALT+TAb

Nishad S8-May-06 2:02

Nishad S

8-May-06 2:02

Ganesh_T wrote:
But one of my child dialog some thread are executing

Are you sure that there is another thread rather than the main thread is doing the process?

- NS -

Re: Problem with ALT+TAb

Ganesh_T8-May-06 2:06

Ganesh_T

8-May-06 2:06

yes I am starting five threads.....by AfxBeginThread

Cheers
"Peace of mind through Technology"

Re: Problem with ALT+TAb

jhwurmbach8-May-06 2:12

jhwurmbach

8-May-06 2:12

Ganesh_T wrote:
yes I am starting five threads

And you talk of six child windows...

"We trained hard, but it seemed that every time we were beginning to form up into teams we would be reorganised. I was to learn later in life that we tend to meet any new situation by reorganising: and a wonderful method it can be for creating the illusion of progress, while producing confusion, inefficiency and demoralisation."

-- Caius Petronius, Roman Consul, 66 A.D.

Re: Problem with ALT+TAb

Ganesh_T8-May-06 3:05

Ganesh_T

8-May-06 3:05

I am starting these all threads from one of my child dialog.

I am not starting threads for creating the child dialogs

Cheers
"Peace of mind through Technology"

Re: Problem with ALT+TAb

Michael Dunn8-May-06 6:54

Michael Dunn

8-May-06 6:54

Ganesh_T wrote:
But one of my child dialog some thread are executing and IF i press ALT+tab to display it again the windows does not appears but the process continues. When the threads process is completed the window functions well...

That's because the thread isn't processing window messages, so the dialog can't repaint.

--Mike--
Visual C++ MVP Cool | :cool:

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How can I Export DllUnregisterServer in VC++?

Orchid858-May-06 1:22

Orchid85

8-May-06 1:22

Hi Every one,
I'm programming in VC++ and I created a dll(MFC dll) with VC++,in this dll I'd like to have a function that export to out,I can do it ,but when I declare DllRegisterServer function I can't export it.
My code is same as folowing code:
__declspec(dllexport) STDAPI DllRegisterServer(void);
how can I export DllRegisterServer or DllUnregisterServer function that implemented in a dll ?
Please help me.
Best Regards.
Orchid
Confused | :confused:

Re: How can I Export DllUnregisterServer in VC++?

Cedric Moonen8-May-06 1:34

Cedric Moonen

8-May-06 1:34

What are you trying to do exactly ? Why do you want to export this function ? I don't know exactly its prupose but isn't it related to COM (not sure at all) ?

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.