C / C++ / MFC

«_Superman_»16-Nov-09 16:40

16-Nov-09 16:40

You can use the Find method of the CString class in a loop by adjusting its iStart parameter.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Paulraj G16-Nov-09 16:49

Paulraj G

16-Nov-09 16:49

I used Find method. But not get. can you please tell me something brief?

G.Paulraj

«_Superman_»16-Nov-09 16:53

16-Nov-09 16:53

Create an integer variable iStart and set it to 0.
Call str.Find("circle", iStart);
Check the return value.
If it is -1, the word was not found.
Otherwise use str.Mid with the return value from Find as the first parameter.
Now increment iStart by the 6, which is the length of the word "circle".
Repeat the loop till Find returns -1.

It is recommended to enclose all strings in the _T("") macro so that it works for both UNICODE and NON-UNICODE builds.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Paulraj G16-Nov-09 16:57

Paulraj G

16-Nov-09 16:57

Thanks a lot...

G.Paulraj

Adam Roderick J16-Nov-09 16:54

Adam Roderick J

16-Nov-09 16:54

Hope you tried your hand before getting the code.

CString csStr = _T( "Hello it is circle, how is this circle" );
LPCTSTR CIRCLE = _T( "Circle" );
int nPos = 0;
int nCountCircle = 0;
while( -1 != ( nPos = csStr.Find( CIRCLE, nPos ))
{
 nPos++;
nCountCircle++;
}

Величие не Бога может быть недооценена.

ThatsAlok16-Nov-09 18:14

ThatsAlok

16-Nov-09 18:14

Adam Roderick J 09 wrote:
CString csStr = _T( "Hello it is circle, how is this circle" );LPCTSTR CIRCLE = _T( "Circle" );int nPos = 0;int nCountCircle = 0;while( -1 != ( nPos = csStr.Find( CIRCLE, nPos )){ nPos++;nCountCircle++;}

Could it will like this, possibly instead of nPos++ to nPos+= _tcslen(CIRCLE); , little more performance oriented code

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Michael Schubert17-Nov-09 1:49

Michael Schubert

17-Nov-09 1:49

The cheeky method:

Make a copy of the string and run CString::Replace() on it. It will return the number of replaced instances.

Help,about update view.

majianwei8616-Nov-09 15:55

majianwei86

16-Nov-09 15:55

I download DFV_Demo from codeproject,I use my custom view doc mainframe to inherit interrelated class of DFV_Demo,but i cann't update view immediately as common .For example , when i click first button of toolbar, fistr button is press,and then i continue to click second button, sencond button is press ,but first is still press,i'm trouble in it,need your help,thank you first.

«_Superman_»16-Nov-09 16:43

16-Nov-09 16:43

It's probably a 3-state button which remains pressed when it is clicked once and is released on the second click.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

majianwei8616-Nov-09 19:02

majianwei86

16-Nov-09 19:02

as you say it's a 3-state button ,it's a button in toolbar but i cann't understand how to update view in a dialog control

Adam Roderick J16-Nov-09 16:45

Adam Roderick J

16-Nov-09 16:45

Can you please explain it clearly,
It is very difficult to understand whats you need. Confused | :confused:

I guess you want to update all the view of a MDI or SDI application.
Is it so then UpdateAllViews can be used [^]

Величие не Бога может быть недооценена.

How to hide/remove the menu in MFC Dialog project ?

majianwei8616-Nov-09 19:05

majianwei86

16-Nov-09 19:05

Yes,i need to update view,it's different from with traditional SDI, it's my custom view.
The view is on the dialog control,thanks for your reply

wangningyu16-Nov-09 14:38

wangningyu

16-Nov-09 14:38

Hello everybody !

I select the menus from Resource View.

Now I want to hide/remove the menu when he is login faild !

just like this :

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

	//  Login Dialog
	CLogin	dlg;
	int	nDlg;
	nDlg = dlg.DoModal();
	if(nDlg == IDCANCEL)
	{
		// if login faild ,How to hide the menu ?
		......
	}
}

Thanks for your reply !

Best Reguards !

Re: How to hide/remove the menu in MFC Dialog project ?

«_Superman_»16-Nov-09 15:41

Re: How to hide/remove the menu in MFC Dialog project ?

16-Nov-09 15:41

::SetMenu(m_hDlg, NULL);

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

wangningyu16-Nov-09 15:46

wangningyu

16-Nov-09 15:46

I know the mean , thanks a lot !

Little help with analyzing minidumps

Code-o-mat16-Nov-09 10:32

Code-o-mat

16-Nov-09 10:32

Hello folks!

This isn't directly a C++ question, but i don't really know where to ask this, and it is kinda related to C++ since we do work with VC++ and use MFC so...i thought i try my luck here, sorry if i "heavily" misplaced this question. So...
We work on a project, every time we give out an RC (Release Candidate), we backup the PDB and the -that time- current source files for later usage. Then, after we receive a crash report from a test site, we check the logs what version they were created with, retriece the PDB, the EXE and the sources to analyze the minidump included with the logs. Now, my problem is that the PDB seems to have the paths to the source files "hardcoded" into it and because of this, every time when we get a dump to analyze, we have to replace our latest sources with the less recent ones which were archived when the given RC went out so we know where the crash occured, what threads were doing and so on. After we are done with it then we have to get back to our latest sources again to continue the development. As you can think this is a bit...uncomfortable. Is there a way to tell Visual Studio (2003, yes, i know, it is old...) to search for the source files somewhere else than where they originally were located when the PDB was made? What i mean is, for example let's say a given file is in c:\projects\the_thing\the_file.cpp when the project is being built. Once the RC is out we make changes to the_file.cpp, then we get a crash, instead of having to replace the_file.cpp with the earlier version to see where the crash occured, i would rather try to copy the earlier version to c:\dumpchecks\the_thing\the_file.cpp and then somehow tell VS to instead of c:\projectss\the_thing, use c:\dumpchecks\the_thing to locate the sources. Of course i wouldn't like to do this for every single file, just tell it once to use c:\dumpchecks instead of c:\projects. Is this duable, or is there some other simple way i don't know of to solve this? I tried to change some folders in project settings and such like the "Working folder" but nothing seems to change this. Thanks in advance for any help.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

«_Superman_»16-Nov-09 11:00

16-Nov-09 11:00

Not sure if you can do this in Visual Studio, but you can set a source path in a Windbg session.

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Code-o-mat16-Nov-09 11:09

Code-o-mat

16-Nov-09 11:09

We'd prefer VS (and couldn't find how to do it -if it is possible at all- yet) but i will give WinDbg a try, thanks.

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Sometimes you just have to hate coding to do it well. <

Stephen Hewitt16-Nov-09 16:40

Stephen Hewitt

16-Nov-09 16:40

Use Microsoft's Symbol Server[^]. Part of the release process for a build becomes adding its symbols to your downstream store and you set it up to pull symbols for the OS from upstream (from Microsoft). Look here[^] too.

Steve