If I have multiple NIC with IP addresses, how do I... - C / C++ / MFC Discussion Boards

Re: Add current date and time to a string

Einar Kvandahl29-Nov-04 9:58

29-Nov-04 9:58

Well the left padding with a zero was pretty easy just use the flag 0.

The issue with the hour is still puzzling me. It is just past 3PM (15) on my computer now but somehow the SYSTETIME.wHour thinks it is 9PM (21)

Any help would be appreciated.

Thanks,
Einar

Re: Add current date and time to a string

Einar Kvandahl29-Nov-04 10:04

Einar Kvandahl

29-Nov-04 10:04

Hmmmm I guess the only thing that makes sense it that I am located in the central timezone (GMT -06:00) and what do you know 21:14 - 06:00 = 15:14 which is the time my computer tells me it is.
Wow this is really odd and I would rather the computer gave me the current time (according to the computer) and not changing it to GMT.

Anyone know how to accomplish this?

Thanks,
Einar

Re: Add current date and time to a string

krmed29-Nov-04 10:30

krmed

29-Nov-04 10:30

According to MSDN:

GetSystemTime<br />
The GetSystemTime function retrieves the current system date and time. The system time is expressed in Coordinated Universal Time (UTC).

You might try

GetLocalTime<br />
The GetLocalTime function retrieves the current local date and time.

Hope that helps.

Re: Add current date and time to a string

Einar Kvandahl29-Nov-04 10:33

Einar Kvandahl

29-Nov-04 10:33

GetLocalTime was just what I needed.
Thank you much.
Sincerely,
Einar

GetTextExtent with Bold and Italic font

Cyrus Dang29-Nov-04 6:21

Cyrus Dang

29-Nov-04 6:21

How can I calculate exactly the size of a string in Bold or Italic? GetTextExtent() apparently doesn't care about Bold and Italic settings.
Thanks.

Creating a Hebrew application

sergio_o29-Nov-04 5:31

sergio_o

29-Nov-04 5:31

Dear Sirs,

We need to create an application that supports Hebrew. Could anyone please give me an explanation on how use hebrew strings as resources and use them on a Visual C++ 6/MFC application? Confused | :confused:

Thanks,
Sergio

Dynamic control creation

Juan Ignacio Garzón29-Nov-04 5:20

Juan Ignacio Garzón

29-Nov-04 5:20

Hi I'm still newbie in VC++ and MFC. I'm writing an application, and need to create controls at runtime. For example, I need to create a button on a window every time I click on another previously created button.
I think that the biggest difficulty is mapping messages from those controls.. I have a CButton list to store the buttons, but how to tell the parent window to process every button messages??

Thanks for your time!

If I have multiple NIC with IP addresses, how do I...

DeepT29-Nov-04 5:10

DeepT

29-Nov-04 5:10

Determine which NIC is the one that is providing me with 'default' internet access?

For example, you open IE and go to google. Which NIC is it using? Currently i use gethostbyname() which does list all the IPs the machine has, but I can't figure out a way to tell which one is the active one.

Suggestions for Learning Direct Draw?

PSU Casper29-Nov-04 4:51

PSU Casper

29-Nov-04 4:51

Does anyone have any suggestions for learning to use Direct Draw? Maybe a good website or a list of suggested steps to teach myself? I bounced around for about an hour last nite on MSDN and didnt really find what I was looking for.

I pretty much just need basics, code samples, and maybe a Tutorial that explains things well to a non-graphics Windows developer (me).

The reason I ask is because of this thread: http://www.codeproject.com/script/comments/forums.asp?forumid=1647&XtraIDs=1647&searchkw=jungle&sd=11%2F10%2F2004&ed=11%2F29%2F2004&select=979228&df=100&mpp=50&fr=565#xx979228xx[^]

Thanks!

VERIFY

act_x29-Nov-04 4:17

act_x

29-Nov-04 4:17

What is the advantage of using VERIFY in the Release version . IT gets evaulated but doesnt terminate in case of the expression evaulates to FALSE .

Re: VERIFY

Antony M Kancidrowski29-Nov-04 4:22

Antony M Kancidrowski

29-Nov-04 4:22

The advantage is exactly that it *does* get evaluated. As you may know ASSERT does not.

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Walliams (Little Britain)

Re: VERIFY

act_x29-Nov-04 4:29

act_x

29-Nov-04 4:29

FROM MSDN

Antony M Kancidrowski wrote:
In the debug version of MFC, the VERIFY macro evaluates its argument. If the result is 0, the macro prints a diagnostic message and halts the program. If the condition is nonzero, it does nothing.

The diagnostic message has the form

assertion failed in file <name> in line <num>

where name is the name of the source file and num is the line number of the assertion that failed in the source file.

In the release version of MFC, VERIFY evaluates the expression but does not print or interrupt the program. For example, if the expression is a function call, the call will be made.

In the debug version of MFC, the VERIFY macro evaluates its argument. If the result is 0, the macro prints a diagnostic message and halts the program. If the condition is nonzero, it does nothing.

The diagnostic message has the form

assertion failed in file <name> in line <num>

where name is the name of the source file and num is the line number of the assertion that failed in the source file.

In the release version of MFC, VERIFY evaluates the expression but does not print or interrupt the program. For example, if the expression is a function call, the call will be made.

VERIFY evaluates the expression but does not print or interrupt the program.

If it doesnt not interrupt the Program why do you need it ?

Re: VERIFY

Antony M Kancidrowski29-Nov-04 4:41

Antony M Kancidrowski

29-Nov-04 4:41

act_x wrote:
If it doesnt not interrupt the Program why do you need it ?

You still want the code to execute and do something usefull in the Release version.

e.g VERIFY(CloseHandle(hHandle));

In DEBUG will assert if it fails to close the handle. In RELEASE you still want it to attempt to close the handle.

You could write it:

BOOL bOK = CloseHandle(hHandle));
ASSERT(bOK);

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Walliams (Little Britain)

Re: VERIFY

David Chamberlain29-Nov-04 8:04

David Chamberlain

29-Nov-04 8:04

The simple answer is that when developers put a statement into an ASSERT while they are building code in debug versions, that statement can either be something that is used just to check a result or something that should execute AND check the result. Since many developers have a style of putting "real" code in their ASSERT statements, they found out that in the release build, those statements disappeared, as the ASSERT statements were ignored.

Thus the utility of VERIFY. If you use an ASSERT and only use a statement that tests a condition, then you are alright in both debug and release versions. If you put "real" code into an ASSERT and expect it to always execute in both debug and release versions, then you should use VERIFY instead.

"You can say that again." -- Dept. of Redundancy Dept.

file association in Dialog based application

vyjesh29-Nov-04 1:17

vyjesh

29-Nov-04 1:17

I am developing a Dialog based application, which contains 5 tabs. In one of the

tabs microsoft media player control (version 9) is embedded. Now I want to

associate my application with media files, so that the media file double clicked is

played by the media player control embedded in one of the tabs. How can I achive it.

Please help..

Thanks in Advance.

Re: file association in Dialog based application

Antony M Kancidrowski29-Nov-04 4:32

Antony M Kancidrowski

29-Nov-04 4:32

http://www.codeproject.com/script/comments/forums.asp?msg=961585&forumid=1647&XtraIDs=1647&searchkw=file+association&sd=8%2F31%2F2004&ed=11%2F29%2F2004#xx961585xx[^]

Ant.

I'm hard, yet soft.
I'm coloured, yet clear.
I'm fruity and sweet.
I'm jelly, what am I? Muse on it further, I shall return! - David Walliams (Little Britain)

RegisterWindowEx Problems...

Anonymous29-Nov-04 0:59

Anonymous

29-Nov-04 0:59

Hello.

When I try to register my windows class using RegisterClassEx in my program I get an error which GetLastError tells me is error 120.

This apparently is:

This function is not supported on this system.

I find this confusing as an identical call in one of the programs in the SDK samples works fine? The only difference between the two is that my project is built using UNICODE. Could this affect the outcome of function calls with identical input?

This is the code:

LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;

case WM_PAINT:
case WM_TIMER:
case WM_GRAPHNOTIFY:
case WM_LBUTTONDOWN:
case WM_NEXTSCREEN:
case WM_STARTSCREEN:
HandleEvent(msg, wParam, lParam);
break;

case WM_DISPLAYCHANGE:
break;

case WM_CHAR:
{
if(wParam == VK_ESCAPE)
{
PostMessage(hWnd, WM_CLOSE, 0, 0);
}
else
{
PostMessage(hWnd, WM_NEXTSCREEN, 0, 0);
}
}
break;
}
return DefWindowProc(hWnd, msg, wParam, lParam);
}

HRESULT MakeWindow(HINSTANCE hInstance)
{
WNDCLASSEX wc = {sizeof(WNDCLASSEX),
CS_CLASSDC,
MsgProc,
0L,
GetModuleHandle(NULL),
NULL,
NULL,
NULL,
NULL,
L"Star Chart",
NULL};

RegisterClassEx(&wc);
}

... rest of windows code ...

How can it be that this identical code works fine in one project and not in the other?

Any ideas would be greatly appreciated because I have been at this for 6 hours now with no success...

If anybody needs to see any other code I would be glad to post it for you, I really just don't know what to try now...

edit:

I have now found that it is the GetModuleHandle() call that is producing the error? Can this be right?

Thanks in advance.

Mark Coleman

Re: RegisterWindowEx Problems...

Anonymous29-Nov-04 5:17

Anonymous

29-Nov-04 5:17

I think I managed to fix the problem, it was to do with the UNICODE preprocessor assignments. I don't think the functions like these assignments on 98.

Mark Coleman

hook for console app

efanHarris29-Nov-04 0:44

efanHarris

29-Nov-04 0:44

Hi All
I want to implement hook to trap console windows messages.
say for example ...
one console application is runing .and one my application is runing.
both are totally independent application.

what i want is if console application minized or maximized or moved , my application should flag a message.

see if any one can help me with code.

Thanx
Rdgs
Efan

Problems with MS Outlook 2000 when using MAPISendMail

Subramanyam29-Nov-04 0:04

Subramanyam

29-Nov-04 0:04

I am using MAPISendMail to open the compose mail window of my default mail client. Everthing is working fine except when i use MS Outlook 2000 as my default mail client the new message window which is opened through my application cannot be minimized and also i cannot start my MS Outlook when the new mail message window is open. Can anyone provide a solution to it.

-- Subu --

how to Convert CString object to BYTE object?

pubududilena29-Nov-04 0:02

pubududilena

29-Nov-04 0:02

hi all ,
I want to convert CString Object to BYTE Object.How do I do that?.
My CString Object and pointer BYTE Object is given below.

BYTE * sampleFeatures;
CString s1;

thanks in advance

Re: how to Convert CString object to BYTE object?

ThatsAlok29-Nov-04 1:48

ThatsAlok

29-Nov-04 1:48

Type Casting will help

CString s1="codeproject";<br />
BYTE *p=(BYTE*)(LPSTR)(LPCTSTR)s1;

-----------------------------
"I Think this Will Help"
-----------------------------
Alok Gupta
visit me at http://www.thisisalok.tk

Outlook .MSG file structure

mcousins28-Nov-04 21:44

mcousins

28-Nov-04 21:44

Hi There

Does anyone know the struture of Outlook's .MSG file? I would like to extract the actual email data/attachment from the file.

Any ideas/pointers?

Thanks

Re: Outlook .MSG file structure

JM Navarro29-Nov-04 4:32

JM Navarro

29-Nov-04 4:32

An Outlook MSG is just a text file with source code of your mail.
Take a look at Mail Propierties - Details - Source (with Express).
If you know a little SMTP, you understand this code.

Cheers!

JM

CTreeCtrl drag & drop

stevy8228-Nov-04 21:33

stevy82

28-Nov-04 21:33

Is it possible to drop a dragged item between two nodes? That means the user should be able to "insert" a dragged item in the tree.

I've found nothing on this site yet

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.