C / C++ / MFC

SHGetSpecialFolderPath and NT4

15-Mar-02 5:12

Just remember about the salt Smile | :)

Tomasz Sowinski -- http://www.shooltz.com

jerry0davis15-Mar-02 3:35

jerry0davis

15-Mar-02 3:35

I'm writing my own custom install program. I need to create links in the common desktop, common programs, and common startup directories. I use SHGetSpecialFolderPath to find these directories, but when I run the setup program on NT4 with IE6 I get told it can't find SHGetSpecialFolderPath in SHELL32.dll

Quoting from MSDN...

Requirements...
Windows NT/2000: Requires Windows 2000 (or Windows NT 4.0 with Internet Explorer 4.0 or later).

When calling SHGetSpecialFolderPath I write "BOOL success = SHGetSpecialFolderPath(m_hWnd, path, ssfCOMMONDESKTOPDIR, FALSE);" for example.

Well the NT4 PC that I'm testing it on has IE6 on it, so in theory should work. Anyone know why I'm getting this error please?

Jeremy Davis
http://www.astad.org

Carlos Antollini15-Mar-02 3:37

Carlos Antollini

15-Mar-02 3:37

What version of shell32.dll do you Have?
You need the version 4.71 or later...;)

Best Reagards

Carlos Antollini.
Sonork ID 100.10529 cantollini

jerry0davis15-Mar-02 3:45

jerry0davis

15-Mar-02 3:45

Hmm, I saw that in MSDN. Smile | :)

How would I find what version I have? Also why didn't IE6 install the latest version? Thanks for your help anyway.

Jeremy Davis
http://www.astad.org

Tomasz Sowinski15-Mar-02 3:41

15-Mar-02 3:41

Can you run depends.exe on target system and check if Shell32.dll exports SHGetSpecialFolderPath? You'll be able to tell whether problem is located in OS or in your installer.

Tomasz Sowinski -- http://www.shooltz.com

Tomasz Sowinski15-Mar-02 3:44

15-Mar-02 3:44

... and if you're using GetProcAddress to get the SHGetSpecialFolderPath, do not forget that actual name is SHGetSpecialFolderPathA (if you want ANSI) or SHGetSpecialFolderPathW (if UNICODE is your cup of tea)

Tomasz Sowinski -- http://www.shooltz.com

jerry0davis15-Mar-02 4:32

jerry0davis

15-Mar-02 4:32

Thanks for your help. In the end I've used SHGetSpecialFolderLocation to find the directories ppidl, and converted it into a path using SHGetPathFromIDList.

Jeremy Davis
http://www.astad.org

Michael Dunn15-Mar-02 7:41

Michael Dunn

15-Mar-02 7:41

Use SHGetSpecialFolderLocation() instead, which will work on all OSes.

--Mike--
Rollin' in my 5.0
With the rag-top down so my hair can blow.
My really out-of-date homepage
Sonork - 100.10414 AcidHelm
Big fan of Alyson Hannigan and Jamie Salé.

CreateEx

Anthony988715-Mar-02 3:35

Anthony9887

15-Mar-02 3:35

I created a window on the screen, but it doesn't seem to repaint itself properly. I've called the updatewindow.

Re: CreateEx

Tomasz Sowinski15-Mar-02 3:36

will this cause resource leak?

15-Mar-02 3:36

How do you handle WM_PAINT?

Tomasz Sowinski -- http://www.shooltz.com

Re: CreateEx

Carlos Antollini15-Mar-02 3:39

Carlos Antollini

15-Mar-02 3:39

Do you need to overwrite the mesage OnPaint...

Reagards

Carlos Antollini.
Sonork ID 100.10529 cantollini

lucy15-Mar-02 2:56

lucy

15-Mar-02 2:56

Thank you for reviewing my code. Please tell me whether this will cause any resource leak. Thank you a lot for your time and help! Rose | [Rose]

void CMyView::OnDraw(CDC *pDC)
{
    CPen redBeaconPen;
    VERIFY(redBeaconPen.CreatePen(PS_SOLID, 1, RGB(255,0,0)));
    CPen * pOldPen = pDC->SelectObject(&redBeaconPen);
    pDC->SelectStockObject(HOLLOW_BRUSH);

    pDC->Ellipse(1, 1, 10, 10);

    pDC->SelectObject(pOldPen);
    // <== my concern is here, how should I delete redBeaconPen? Or windows will handle that for me in CPen's destructor?
}

Re: will this cause resource leak?

Tomasz Sowinski15-Mar-02 2:53

Re: will this cause resource leak?

15-Mar-02 2:53

redBeaconPen is not selected into pDC when its destructor calls ::DeleteObject. There will be no resource leak. Code is OK.

Tomasz Sowinski -- http://www.shooltz.com

lucy15-Mar-02 3:17

lucy

15-Mar-02 3:17

Thank you for your quick reply! Rose | [Rose]

A strange problem!

Davidlou15-Mar-02 2:18

Davidlou

15-Mar-02 2:18

Who has used the regexp object in system32\vbscipt.dll to parse the text string. I have tried it and make it work!
But i don't know why i can get only one match(that is the matches.GetCount()==1, even there are many exist. The next is my code:

void CInetSessionDlg::ParsePage(CString szPattern, CString szContent)
{
//m_regExp's declaration is on other place link this: IRegExp m_regExp;
//The class IMatchCollection and IMatch are both got from the tlb
//m_regExp = regExp;
try{
if(m_regExp.CreateDispatch(__uuidof(RegExp)) == FALSE)
{
AfxMessageBox("CreateDispatch Failed!");
return;
}
//IMatchCollection2 * temp;
m_regExp.SetIgnoreCase(TRUE);
m_regExp.SetPattern(LPCTSTR(szPattern));
if(m_regExp.Test(LPCSTR(szContent)))
{
//IMatchCollection2 matches=m_regExp.Execute(szContent);
ISubMatches matches = m_regExp.Execute(szContent);
for(long i = 0; i < matches.GetCount(); i++)
{
IMatch2 match = matches.GetItem(i);
//IMatch2 match = temp->GetItem(i);
CString strLink = match.GetValue();
m_cbHref.AddString(strLink);
}
}
}
catch(_com_error& e)
{
AfxMessageBox("Com Error occurred!" + e.Description());
return;
}
}

in this implementation file's header file:
i defined the RegExp(copied from the file RegExp.tlh got from vbscript.dll)
struct __declspec(uuid("3f4daca4-160d-11d2-a8e9-00104b365c9f"))
RegExp;
// [ default ] interface IRegExp2

Why? Who can tell me how to use vbscript.dll in VC++ 6.0

thanks a lot!

Sincerely, Davidlou
davidlou68@hotmail.com

Avoid Moving a window

parker_john15-Mar-02 2:17

parker_john

15-Mar-02 2:17

Hello all,
I'm trying to avoid users to move my window and I've tried to overload the DefWindowproc() and OnWndMsg() in order to catch the WM_MOVING message, but it's doesn't work. Do you have any idea about how to manage this matter?

Thanks you,

Confused | :confused:

parker john

Tomasz Sowinski15-Mar-02 2:19

15-Mar-02 2:19

This works for me:

UINT CMainFrame::OnNcHitTest(CPoint point) 
{
	UINT n = CFrameWnd::OnNcHitTest(point);
	if (HTCAPTION == n)
	{
		n = HTNOWHERE;
	}
	return n;
}

Tomasz Sowinski -- http://www.shooltz.com

Prem Kumar15-Mar-02 2:38

Prem Kumar

15-Mar-02 2:38

HI,
It works for a generic window also

if( CWnd::OnNcHitTest(point) == HTCAPTION)
return HTNOWHERE ;

Tomasz Sowinski15-Mar-02 2:43

15-Mar-02 2:43

Yes, it should work for all types of windows. The sample was just taken from main frame window in small SDI app.

Tomasz Sowinski -- http://www.shooltz.com

Drag and Resize ActiveX control in CView

Prem Kumar15-Mar-02 2:33

Prem Kumar

15-Mar-02 2:33

Hi,
I guest windows provides the default action for moving
u cannot stop the moving, but u can get back to the same position
by using some thing ilke that foll code.

In WM_INITDIALOG, take the window rect and on OnMove
code it like the foll.

void CTstNoMoveDlg::OnMove(int x, int y)
{
CDialog::OnMove(m_Rect.left, m_Rect.top);
if( m_Rect.Width() > 100 )
::SetWindowPos(m_hWnd,HWND_NOTOPMOST,m_Rect.left,m_Rect.top,m_Rect.Width(),m_Rect.Height(),/*SWP_NOSENDCHANGING*/SWP_SHOWWINDOW);
}
The reason for the If condition is a WM_MOVE is sent before the dialog is
even properly instantiated at this pt the size might be rather less.

sanskypotov15-Mar-02 1:58

sanskypotov

15-Mar-02 1:58

Hi,
Can someone tell me is there any way to use an ActiveX
control in CView. The intention is to use the ActiveX
with additional facility like drag and resize the ActiveX
control.
Regards,
Sansky Big Grin | :-D

God is Good, all the Time.
All the Time, God is Good.

please help me

15-Mar-02 1:55

i am not understanding how to get the ' key .
for f1 key i have used vk_f1 virtual code .is there any such code for ' key. please do reply Confused | :confused:

Re: please help me

Tomasz Sowinski15-Mar-02 2:08