C / C++ / MFC Discussion Boards

30-Nov-01 7:40

When compiling a regular dll in Beta2, it gives the following error:

error C2065:'ILS_NORMAL':undeclared identifier c:\program Files\...\atlmfc\include\afxcmn.h line 1336

It seems 'ILS_NORMAL' is not defined in any of the header files in beta2. It is more like ILS_??????? has something to do with the internet than with the image lists. Defining ILS_NORMAL as 0x0 (re: cmnctl.h) at the top of afxcmn.h makes the compile go through, but are there better solutions?

Re: minor bug in VC7.0?

Anders Molin30-Nov-01 7:54

Anders Molin

30-Nov-01 7:54

#define ILS_NORMAL 0x00000000
#define ILS_GLOW 0x00000001
#define ILS_SHADOW 0x00000002
#define ILS_SATURATE 0x00000004
#define ILS_ALPHA 0x00000008

from commctrl.h in RC1...

- Anders

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

Re: minor bug in VC7.0?

30-Nov-01 8:11

You mean to say to include commctrl.h besides afxcmn.h?

Re: minor bug in VC7.0?

Anders Molin30-Nov-01 11:22

Anders Molin

30-Nov-01 11:22

Ernest wrote:
You mean to say to include commctrl.h besides afxcmn.h?

Yep, the following is from the latest Platform SDK (in the buttom it says what header to include)

ILS_NORMAL (0x00000000)
The image state is not modified.

ILS_GLOW (0x00000001)
Adds a glow effect to the icon, which causes the icon to appear to glow with a given color around the edges. The color for the glow effect is passed to the IImageList::Draw method in the crEffect member of IMAGELISTDRAWPARAMS.

ILS_SHADOW (0x00000002)
Adds a drop shadow effect to the icon. The color for the drop shadow effect is passed to the IImageList::Draw method in the crEffect member of IMAGELISTDRAWPARAMS.

ILS_SATURATE (0x00000004)
Saturates the icon by increasing each color component of the RGB triplet for each pixel in the icon. The amount to increase is indicated by the frame member in the IMAGELISTDRAWPARAMS method.

ILS_ALPHA (0x00000008)
Alpha blends the icon. Alpha blending controls the transparency level of an icon, according to the value of its alpha channel. The value of the alpha channel is indicated by the frame member in the IMAGELISTDRAWPARAMS method. The alpha channel can be from 0 to 255, with 0 being completely transparent, and 255 being completely opaque.

Constants Information

Header commctrl.h
Minimum operating systems Windows XP

- Anders

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

Re: minor bug in VC7.0?

30-Nov-01 11:56

Thanks.

Fixed CSplitterWnd bars

Mark Donkers30-Nov-01 6:47

Mark Donkers

30-Nov-01 6:47

Does anyone know how to fix the bars of a CSplitterWnd bar so the user cannot resize them? I can't find any info in the MSDN, CP, or CodeGuru. Thanks for any help.

Mark

Sonork ID 100.10778:Waxy
------------------------------------------------
I am not discouraged because every wrong attempt discarded is another step forward
-- Thomas Edison --

Re: Fixed CSplitterWnd bars

30-Nov-01 7:26

1) Use ClassWizard to create a new class named CMySplitterWnd of class type "generic CWnd" and change the references to CWnd in the class declaration and BEGIN_MESSAGE_MAP macro to CSplitterWnd.

2)
Using ClassWizard, create message handlers for WM_LBUTTONDOWN, WM_LBUTTONUP, WM_LBUTTONDBLCLK, and WM_MOUSEMOVE. Bypass the CSplitterWnd functionality in each of these overrides by calling the corresponding CWnd handlers. The following example illustrates the WM_LBUTTONDOWN handler:

void CMySplitterWnd::OnLButtonDown(UINT nFlags, Cpoint point)
{
CWnd::OnLButtonDown(nFlags, point);
}

3)
Change any embedded CSplitterWnd members of your frame class to type CMySplitterWnd.

4)
Remove any menu items that generate a ID_WINDOW_SPLIT command (such as the "Split" item on the VIEWEX sample's "Window" menu). This prevents CView::OnSplitCmd() from being called.

By the way, this is "Copy-Paste" from the MSDN.

--BlackSmith--

Re: Fixed CSplitterWnd bars

Mark Donkers30-Nov-01 9:15

Mark Donkers

30-Nov-01 9:15

I guess it all depends what you're searching for. "Tracking" was the keyword I should've searched for. It worked like a charm. I also over-rode the OnMouseMove message so the cursor doesn't change to a resize cursor.

Thanks for the help!!

Mark

Sonork ID 100.10778:Waxy
------------------------------------------------
I am not discouraged because every wrong attempt discarded is another step forward
-- Thomas Edison --

Server - Client

30-Nov-01 6:37

I'm developing serv-cli game
( using CSocket, negotiating with Send()/Receive() )

I also have these classes:

[1]
class CMsg{
public:
virtual void method() = 0;
};

[2]
class CMsgDerive : public CMsg{
public:
virtual void method()
{
AfxMessageBox("Moo");
}
};

both sides familiar with this classes. Next, I send the data to the server:

clientSocket.Send((void*)&CMsgDerive(), sizeof(CMsgDerive));

I receive the data at the server:

void CServrSocket::OnReceive(int err)
{
TCHAR lpBuffer[1024]; //The data is much smaller

Receive(lpBuffer, sizeof(lpBuffer));
CMsg *pMsg = (CMsg*)lpBuffer;

pMsg->method(); //Here I get "unhandable exception" error, WHY???
}

Thank you all!

--BlackSmith--

Re: Server - Client

Anders Molin30-Nov-01 11:30

Anders Molin

30-Nov-01 11:30

I think the server try to call CMsg::method() which is abstract. There is AFAIK no way the server knows that it's actually a CMsgDerive class that you are sending...

Virtual functions are great, but I have seen a lot of errors when used like you do...

Have you tried CMsg *pMsg = (CMsgDerive*)lpBuffer; instead, or even CMsgDerive *pMsg = (CMsgDerive*)lpBuffer;?

- Anders

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

Re: Server - Client

Chris Hafey30-Nov-01 16:12

Chris Hafey

30-Nov-01 16:12

It is crashing because the virtual function pointers are not the same on the client and the server. Your current approach is really bad, try looking through the source of some open source client/server network games for some better ideas.

Chris Hafey

Greek Language in MFC App

George Metaxas30-Nov-01 6:22

George Metaxas

30-Nov-01 6:22

I am developing a piece of software for my Diploma Thesis Project. When I created the framework with AppWizard, I was asked what language I wanted my resources in. The only choice was English (U.S.). But I run a Greek version of Windows 98 and, after all, Greek is my mother tongue. How can I have an application with all resources in Greek?

George Metaxas
Student of Electrical & Computer Engineering
Aristotle University of Thessaloniki, Greece

MSDE/SQL status

Alan Wlasuk30-Nov-01 5:29

Alan Wlasuk

30-Nov-01 5:29

I would like to check the status of the SQL Server Service from within a C++ app.
My Installshield app installs MSDE if needed so I can assume SQL Server is a least present on the PC.

The functions I am looking for:

- See if it is installed - I currently do this via CurrentVersion item under the Software\Microsoft\MSSQLServer\MSSQLServer\CurrentVersion key

- See if it is running

- See if it is configured to start automattically at boot time

I would also like the ability to set up SQL Server to run and start at boot time from my app as well.

The difficult part is that I am looking to do this under Windows 98, ME, NT, 2000 and XP. I know there are functions in NT, 2000 and XP that I can use but I need all OS's.

Thanks
AW

Re: MSDE/SQL status

Carlos Antollini30-Nov-01 5:59

Carlos Antollini

30-Nov-01 5:59

You need to Cheek the status Service.
Use OpenService and then use QueryServiceStatus for check the status of service....

Best Regards.... Big Grin | :-D

Carlos Antollini.
Sonork ID 100.10529 cantollini

Re: MSDE/SQL status

Alan Wlasuk30-Nov-01 6:18

Alan Wlasuk

30-Nov-01 6:18

Carlos:

It appears OpenService and QueryServiceStatus do not run under Win 98.

AW

retrieving OutlookExpress contacts

SAWilde30-Nov-01 5:07

SAWilde

30-Nov-01 5:07

Can someone point me to a sample to retrieve contacts from my OutlookExpress

Holy Handgrenade of Antioch instructions

Re: retrieving OutlookExpress contacts

Michael P Butler30-Nov-01 5:15

Michael P Butler

30-Nov-01 5:15

Look on MSDN for "Windows Address Book"

Michael Smile | :)

CString::Replace

(Steven Hicks)ⁿ⁺¹30-Nov-01 4:45

(Steven Hicks)ⁿ⁺¹

30-Nov-01 4:45

What is a good C++ replacement of CString::Replace. I have a component with approx. 160 CString::Replace s. I am looking for a replacement for speed and portibility to ATL.

Visit Ltpb.8m.com

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Re: CString::Replace

C^hris L^osinger30-Nov-01 5:12

C^hris L^osinger

30-Nov-01 5:12

here's how i do it with std::wstring:

void replace_all(wstring& target, const wstring& to_find, const wstring& replacement )
{
   if (to_find.empty())
      return; 
   
   size_t replace_inc = replacement.length();
   for (size_t loc = target.find( to_find ); 
      loc != wstring::npos; 
      loc = target.find( to_find, loc + replace_inc ) )
   {
      target.replace( loc, to_find.length(), replacement );
   }
}

-c

Smaller Animals Software, Inc.

Re: CString::Replace

Not Active30-Nov-01 16:48

Not Active

30-Nov-01 16:48

If you don't mind a little unsupported code you can use CString from WTL.

Catching WM_ messages

Rickard Andersson²⁰30-Nov-01 4:32

Rickard Andersson²⁰

30-Nov-01 4:32

I want to catch WM_CLOSE from WinAmp and then my app will do something.
Is it possible to catch a windows message in my app that is in WinAmp??

Win32 API programming code example if you want to give code example

------------------------------
©0d3 ©®4©k3® - That's me! Smile | :)

------------------------------

Re: Catching WM_ messages

Jon Hulatt30-Nov-01 5:50

Jon Hulatt

30-Nov-01 5:50

You need a Hook to do that. See SetWindowsHookEx

Sorry to dissapoint you all with my lack of a witty or poignant signature.

Re: Catching WM_ messages

Michael Dunn30-Nov-01 8:03

Michael Dunn

30-Nov-01 8:03

The Winamp sample from their site subclasses the Winamp main window. Just follow that and you'll see all messages first, so you can act on WM_CLOSE (or anything else you want) before Winamp sees it.

--Mike--
http://home.inreach.com/mdunn/
While I can't be correct on all matters, I can make the reassuring claim that where I am inaccurate, I am at least definitively inaccurate.
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Strange dial-up behavior in Win2000

Joaquín M López Muñoz30-Nov-01 4:20

Joaquín M López Muñoz

30-Nov-01 4:20

I'm not 100% sure this is the right place to post this problem, as it is not programmatic strictly speaking, but anyway...

I've got a program that installs some modem .inf drivers, then creates a dial-up entry and uses it via RasDial. Everything's pretty straightforward and the program runs fine in Win9x. In Windows 2000, however, weird things happen. The program seemed to erratically work or fail to work depending on the drivers I'd previously installed. Finally I isolated the cause of the problem, and it seems to be that, no matter which driver I instruct the dial-up entry to use (with RasSetEntryProperties), it is the last installed driver which is used. I can check this by enabling logs for the drivers and verifiyng it is actually the last installed modem the one that gets accessed instead of the modem the dial-up entry is set for.
What's even more strange, I'm able to reproduce this exact behavior without using my program, i.e. by creating manually the dial-up entries and double-clicking them. This really strikes me, since it seems too gross a bug to have went unnoticed for so long. Checked MSDN, the web and the Usenet and I've found nothing related to this problem, except the article Q162219, which anyway is about NT4.0 and not 2000.
This is driving me nuts, any idea, suggestion, whatever, will get my eternal gratitude Smile | :)

.
Machine is Win2000 spanish version, SP2. Plenty of resources, freshly installed.
If anyone wants, I would gladly send him/her the offending .inf drivers, though I don't think these particular drivers make any difference (who knows, anyway).

Thanks for your help, regards,

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Printscreen from CView content

30-Nov-01 4:16

Does anyone know how to do a screen grab into a DIB from a CView derived window. I actually do the rendering in the window using OpenGL and I need to display the screen grab of the window in a thmubnail. everything is set up, now I need to get that DIB from the window.

Oh yeah, the other thing is that not all of the windows will be visible, but I still need to grab of the screen as it would appear if it were on top...

can anyone help?

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