C / C++ / MFC

Keith Worden29-Apr-09 2:06

Keith Worden

29-Apr-09 2:06

It sounds like the SetCurSel IS working in that the tab is changing. It depends how you are displaying the controls "inside" the various tabs. Tabs are dumb - they don't know what you're displaying in each tab or even know that there's anything there. It's up to you to hide/display the "contents" of each tab. I usually use a dialog for the contents of each tab and then process the NM_CLICK message to show or hide each dialog.

bosfan29-Apr-09 2:43

bosfan

29-Apr-09 2:43

Hi,
can you show me how to process NM_CLICK message with sample, this is my idea too but dont know how to do this Frown | :(

$Shucks | :-\$ Unsure | :~

Do you mean this message that is from the msdn:

<br />
lResult = SendMessage(      // returns LRESULT in lResult     <br />
(HWND) hWndControl,      // handle to destination control     <br />
(UINT) WM_NOTIFY,      // message ID     <br />
(WPARAM) wParam,      // = (WPARAM) (int) idCtrl;    <br />
(LPARAM) lParam      // = (LPARAM) (LPNMHDR) pnmh; <br />
);  <br />

regards
termal

Keith Worden29-Apr-09 2:53

Keith Worden

29-Apr-09 2:53

Yes, WM_NOTIFY/NM_CLICK is sent when the tab selection is changed. You can set a function to pick it up by adding
ON_NOTIFY(NM_CLICK, <tab control="" id="">, <function name="">)
to the message map.

Where your function is defined as -
void <class>::<function name="">(NMHDR* pNMHdr, LRESULT* pResult)

Stuart Dootson29-Apr-09 2:07

29-Apr-09 2:07

termal wrote:
m_cTabAll.SetCurSel(0);

That's the one that will work. I've used it in my code successfully. However, I don't think it will fire your TCN_SELCHANGE handler - you'll need to do that yourself.

The structure I've used in the past is something like this:

MyDlg::OnTabChangedHandler(arguments)
{
   ChangeTab(tab.GetCurSel());
}

void MyDlg::ChangeTab(int tab)
{
   Do stuff
   tab.SetCurSel(tab);
}

MyDlg::SomeButtonClickedHandler()
{
   ChangeTab(0);
}

so - move the 'on tab changed' actions to a separate routine that you can call from other places.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

Virendra Kulkarni30-Apr-09 0:28

Virendra Kulkarni

30-Apr-09 0:28

I suppose you must be creating dialogs on each of the tab pages to place your controls.

If that is the case then use the following code to programatically switch to a tab page: ( else just let me know more details. )

void CMyDialog::ShowPage( int nPage )
{
//you need to hide the current dialog.
m_dlgArray[m_tabCurrent]->ShowWindow(SW_HIDE);

//switch the tab.
m_cTabAll.SetCurFocus(nPage);
m_cTabAll.SetCurSel(nPage);

//show the new dialog.
m_dlgArray[nPage]->ShowWindow(SW_SHOW);
m_dlgArray[nPage]->SetFocus();
}

[Message Deleted]

Padmanabha_M29-Apr-09 0:56

Padmanabha_M

29-Apr-09 0:56

[Message Deleted]

Re: Folder Navigation

_AnsHUMAN_ 29-Apr-09 1:24

_AnsHUMAN_

29-Apr-09 1:24

SHBrowseForFolder Function may help you...

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Re: Folder Navigation

David Crow29-Apr-09 4:24

David Crow

29-Apr-09 4:24

For lack of a better response, your question really makes no sense. If you want to access a file in the current directory, use ".\\somefile" notation. If you want to access a file in the parent directory, use "..\\somefile" notation. If you want to access a file in a subdirectory of the current directory, use ".\\subdir\\somefile" notation.

If that's not what you're after, blame it on my lack of understanding your request.

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

Path Check

Davitor29-Apr-09 0:56

Davitor

29-Apr-09 0:56

Hi All

How can i check path is exits or not in system(pc)?plz give me Api or function name?
Thanks is advance

Rajesh R Subramanian29-Apr-09 1:01

Rajesh R Subramanian

29-Apr-09 1:01

Have a look at PathIsDirectory()[^] and PathFileExists()[^]

It is a crappy thing, but it's life -^ Carlo Pallini

Davitor29-Apr-09 1:02

Davitor

29-Apr-09 1:02

i got solution from msdn.

(_access(path,0)==0)

Jijo.Raj29-Apr-09 1:02

Jijo.Raj

29-Apr-09 1:02

Hello Davitor,

You can use function - PathFileExists()[^].

Regards,
Jijo.

_____________________________________________________

http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

Hamid_RT29-Apr-09 4:38

Hamid_RT

29-Apr-09 4:38

You can use of FindFirstFile.

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Initialize variable in static library [modified]

Joe Woodbury29-Apr-09 10:44

Joe Woodbury

29-Apr-09 10:44

Also look at GetFileAttributes() (Which I used just yesterday!)

(One problem with FileExists() is that it returns true for both files and directories.)

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

samira forooghi29-Apr-09 0:13

29-Apr-09 0:13

hi every one

I create a static library with visual c++ 6.0 App wizard.
I create a new generic class and declared my variables in its header file.
Then I initialized my variables in class constructor.

I want to use it in a new dialog based project, so I add related header file and write my library name in linker tab at project setting.

I create one object of this class in my function, But at the end of function when application exits from function occurs an exception.
I can't handle this exception.

Note : when I comment initialized this exception don’t happen.
Please help me

////////////////////////////////////////////////////////////////
// static library class (Test.h)
///////////////////////////////////////////////////////////////

class CTest  
{
public:
		
	CTest();
	virtual ~CTest();
	
	int		 m_i1;//or INT   
	int		 m_i2;   
	
        bool		 m_b1;//or BOOL
	bool		 m_b2;
	
	unsigned int	 m_ui1;//or DWORD32
	unsigned int	 m_ui2;
	
	unsigned short   m_us1;//or USHORT
	unsigned short   m_us2;
	
	BYTE		 m_bte1;//#include <windef.h> in stdafx.h for BYTE data type
	BYTE		 m_bte2;
	
	CString	 m_str1;//#include <afx.h> in stdafx.h for CString data type
	CString	 m_str2;	
};</afx.h></windef.h>

// (Test.cpp)
///////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "Test.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CTest::CTest()
{
	
	m_i1=0;
	m_i2=0;  
		
	m_b1=true;
	m_b2=true;
		
	m_ui1=0;
	m_ui2=0;
		
	m_us1=1;
	m_us2=1;
		
	m_bte1=0;
	m_bte2=0;
		
	m_str1="";
	m_str2="";
		
}

CTest::~CTest()
{


}

////////////////////////////////////////////////////////////////
// My dialog base application
///////////////////////////////////////////////////////////////

void CUseTestLibDlg::OnBinitlib() 
{
	CTest  *pcTest=new CTest();

        delete pcTest;
	pcTest=NULL;
	
	
}// Unhandled exception in UseTestLib.exe: 0xC0000005: Access Violation.

void CUseTestLibDlg::OnBinitlib2() 
{
	CTest  pcTest;
	
}// Unhandled exception in UseTestLib.exe: 0xC0000005: Access Violation.

modified on Wednesday, April 29, 2009 6:26 AM

CPallini29-Apr-09 0:20

CPallini

29-Apr-09 0:20

samira forooghi wrote:
pcTest=NULL;
delete pcTest;

I would invert the order of the statements... Roll eyes | :rolleyes:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

samira forooghi29-Apr-09 0:30

29-Apr-09 0:30

thanks for u
i correct it ,but its not my problem.

Stephen Hewitt29-Apr-09 0:30

Stephen Hewitt

29-Apr-09 0:30

Looks like good advice...

Steve

Stuart Dootson29-Apr-09 0:36

29-Apr-09 0:36

Shouldn't cause an accvio, though - you can delete NULL in C++.

Maximilien29-Apr-09 0:43

Maximilien

29-Apr-09 0:43

but will result in a memory leak.

This signature was proudly tested on animals.

Stuart Dootson29-Apr-09 0:46

29-Apr-09 0:46

I didn't say it wouldn't - I was just saying that fixing it wouldn't solve the OP's problem.

samira forooghi29-Apr-09 1:01

29-Apr-09 1:01

Thanks a lot

Rajesh R Subramanian29-Apr-09 1:21

Rajesh R Subramanian

29-Apr-09 1:21

Yes, but Carlo just indicated one of flaws in the OP's code. I agree that it wouldn't solve 'the problem' of the OP, but it might (hopefully) prevent the OP from shooting his own face sometime in the future. Smile | :)

It is a crappy thing, but it's life -^ Carlo Pallini

samira forooghi29-Apr-09 0:45

29-Apr-09 0:45

i havent any problem with new delete , occur exception even this case

void CUseTestLibDlg::OnBinitlib2() 
{
	CTest  pcTest;	
}// Unhandled exception in UseTestLib.exe: 0xC0000005: Access Violation.

Stuart Dootson29-Apr-09 0:45