C / C++ / MFC

5-Jun-01 3:49

I have a TreeList view, where the first column is a tree view and the second cloumn is a list, with each list item corresponding to a tree item.

I can change list item label via button control (to increase or decrease the value) or edit it value using a dialog box. When I use the button control, I find the the label on the list is not refreshed, I need to deselect it before the values changes. And when I use the dialog to change the value, it does nto change at all.

How can I make the label on the list change 'instantaneously'?

Thanks in advance

Re: Update tree view

Frederico Levesque5-Jun-01 7:50

Frederico Levesque

5-Jun-01 7:50

After changing your value, try:

UpdateData(false);

Hope it will help!

Regards

Frederico

Re: Update tree view

hearties5-Jun-01 21:52

CHtmlView and Enter key in form

5-Jun-01 21:52

i've tried that btu it still doesn't work. Frown | :(

5-Jun-01 3:48

Hi all,

I created a wizard generated project using CHtmlView. Everything works well, but unlike IE, the "Enter" key does not work as a shorcut to submit a form. Does anybody know how to fix that? Confused | :confused:

I'm using Windows 2000 Pro SP2

removing minimise option from a programs taskbar tab

5-Jun-01 3:15

Dear Gurus,
I have run into a problem that I think you might be able to help me with.
I have developed a program that leaves a blank tab in the taskbar (No title at all) when it is running. Now my problem is that I donot want people to be able to minimize the software by rightclicking on the blank tab in the taskbar. Can someone show me how to disable the right click options on this blank tab?
Or is there a way to get rid completely of this blank tab in the taskbar.
Please Help I have been fighting with this problem for over two weeks now on my own.

Thanks in advance,
Raymond Bentoera

Re: removing minimise option from a programs taskbar tab

Michael P Butler5-Jun-01 3:20

Michael P Butler

5-Jun-01 3:20

Have you tried adding WS_EX_TOOLWINDOW to your Windows Style. This should prevent the window from appearing in the taskbar.

Michael Smile | :)

Re: removing minimise option from a programs taskbar tab

Tomasz Sowinski5-Jun-01 3:24

Re: removing minimise option from a programs taskbar tab

5-Jun-01 3:24

Check this KB article: Q205158 "HOWTO: Prevent a Window from Appearing on the Taskbar"

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

5-Jun-01 3:40

Please Mr. Sowinsky,
Can you please give me the exact URL. Becaus I gate a page that is about graphics and sprites.

Thanks in advance,
Raymond Bentoera

Re: removing minimise option from a programs taskbar tab

Tomasz Sowinski5-Jun-01 3:50

Re: removing minimise option from a programs taskbar tab

5-Jun-01 3:50

The article is in Microsoft's knowledge Base, not on my website Smile | :)

Just type Q205158 in the Search pane of your VC++ help. If you don't have KB installed on your workstation, use this direct link:

http://support.microsoft.com/support/kb/articles/Q205/1/58.ASP

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

5-Jun-01 15:43

you can override the PreCreateWindow of your class that has CFrameWnd as its base class, and then exclude WS_SYSMENU as one of the class styles. but doing this will also remove the minimize, maximize, and close button in your application's title bar.

dynamically set the text on the top of a dialog box

hearties5-Jun-01 2:51

Re: dynamically set the text on the top of a dialog box

5-Jun-01 2:51

Does any one know how to dynamically set the text on top of a dialog box?

a sample code would be great!

Thanks!

Tomasz Sowinski5-Jun-01 3:00

Re: dynamically set the text on the top of a dialog box

5-Jun-01 3:00

What's the "text on top of a dialog box"? Caption? If yes, use SetWindowText for that.

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

Stephen Kellett5-Jun-01 3:31

Stephen Kellett

5-Jun-01 3:31

YourDialogClass::OnInitDialog()
{
SetWindowText(_T("Your Title"));
}

Stephen Kellett
--
C++/Java/Win NT/Unix variants
Memory leaks/corruptions/performance/system problems. UK based.
Problems with RSI/WRULD? Contact me for advice.

maximum length of a CString object

hearties5-Jun-01 2:32

Re: maximum length of a CString object

5-Jun-01 2:32

Does anyone know the maximum length of a CString object?

thanks in advance. Eek! | :eek:

Kastellanos Nikos5-Jun-01 2:49

Kastellanos Nikos

5-Jun-01 2:49

There is no limitation.

Actually there is but it's has to be somewhere up to 4G.

- - - - - - - - - - - - - - - - - -
Memory leaks is the price we pay \0
01234567890123456789012345678901234

Re: maximum length of a CString object

Tomasz Sowinski5-Jun-01 2:55

5-Jun-01 2:55

Actually, its 2GB, but I don't think it makes any difference.

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

Usenet

5-Jun-01 2:05

I'm writing a simple newsreader and I'm a bit surprised at how much work it needs Smile | :)

.
The NNTP protocol itself is simple enough; the tricky part is to parse and decode
attachments. There seems to be tons of RFC's that deal with this (MIME, UU Encoding,
base64, etc). Where is the best place to start reading? Are there any good C++ libs
around?

Thanks for suggestions

Re: Usenet

Anders Molin5-Jun-01 6:00

Anders Molin

5-Jun-01 6:00

For Base46 and Quoted Printable you could take a look at http://www.codeproject.com/string/ammimeutils.asp

UUEncoded is a bit more tricky because there is no real standard for it. The only thing I have found describing it, is some Free BSD Header files Frown | :-(

- Anders

Money talks, but all mine ever says is "Goodbye!"

Re: Usenet

5-Jun-01 6:20

See Dundas Software
They have Ultimate TCP/IP that has also NNTP , MIME and UUencode.
I think they have C or C++ source code plus some COM

CScrollView

5-Jun-01 0:32

I've got a problem with CScrollView:
I initialise scrolling with SetScrollSizes(...) /*as it's written in every book*/, but afterwards when I scroll the text isn't scrolled properly: i mean, that the "old" text remains, the scrolled text is shown underneath the old (this concerns only the text which was visible at first), the text, which was output in the invisible part of the document, so to say, is not scrolled at all Cry | :((

Tomasz Sowinski5-Jun-01 0:44

5-Jun-01 0:44

You should post your OnDraw (and OnEraseBkgnd if you've overriden this function). Without that, it's rather hard to tell what's wrong.

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

5-Jun-01 1:38

My OnDraw is this:
void CFormulaEditorView::OnDraw(CDC* pDC)
{
CFormulaEditorDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);

CFont font;
LOGFONT lf;
memset(&lf, 0, sizeof(LOGFONT));
lf.lfHeight = 20;
lf.lfCharSet = 2;
strcpy(lf.lfFaceName, "Times New Roman");
VERIFY(font.CreateFontIndirect(&lf));
CClientDC dc(this);
CFont* def_font = dc.SelectObject(&font);

UINT l = lf.lfHeight;
for (int i=0; i<=pDoc->Formulas.GetUpperBound(); i++)
{
dc.TextOut(0, 110*i+110/2-l, pDoc->Formulas[i]);
}

/////////////////////////////////////////////////////
// Done with the font. Delete the font object.
dc.SelectObject(def_font);
font.DeleteObject();
}

I suppose the problem is in
for (int i=0; i<=pDoc->Formulas.GetUpperBound(); i++)
{
dc.TextOut(0, 110*i+110/2-l, pDoc->Formulas[i]);
}
that it redraws this text on every scrolling event, but where else can I write this??

Tomasz Sowinski5-Jun-01 1:48

5-Jun-01 1:48

Do not use CClientDC created inside OnDraw - use pDC passed as parameter.

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