C / C++ / MFC Discussion Boards

opt761-Jan-05 11:33

1-Jan-05 11:33

I have tried to code a pi-calculation program (gauss-method), but I can´t get enought decimals on it. I tried to install apfloat, but I just got some weird error messages and install won´t succeed. Even the author of apfloat couldn´t figure it out, why I´m getting them.

Is there some "easier" way to get more decimals (or even some other way)? Few million should be enought for a while Smile | :)

Just kidding...million is enought at the moment.

MS Outlook

Member 16241621-Jan-05 10:07

Member 1624162

1-Jan-05 10:07

Is anybody can give me a code sample for getting the MS Outlook address book.
I mean a code sample that retrieves the MS outlook address book.

Thanks.

Re: MS Outlook

Ravi Bhavnani1-Jan-05 10:42

Ravi Bhavnani

1-Jan-05 10:42

Perhaps this[^] article will help?

/ravi

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CreateThread() problem, need help

fklldsvs1-Jan-05 9:25

fklldsvs

1-Jan-05 9:25

I am trying to port some WinCE code to VC++. I am having difficulty initializing a new thread with CreateThread().

WinCE:

WinCE_Program.h
DWORD NewThread(LPVOID);
HANDLE hNewThread;

WinCE_Program.c
{
hNewThread = CreateThread(NULL,0,NewThread,0,0,&dwThreadID);
}

The above works fine for WinCE.

If I use this code for VC++ 5.0, I get an compiler error message:
"cannot convert parameter 3 from unsigned long (void *) to unsigned long (_stdcall *) (void *)"

What do I need to do to correct this?

Thanks
John

Re: CreateThread() problem, need help

Neville Franks1-Jan-05 9:52

Neville Franks

1-Jan-05 9:52

Try this:

DWORD WINAPI NewThread(LPVOID);

Neville Franks, Author of ED for Windows www.getsoft.com and Surfulater www.surfulater.com "Save what you Surf"

Re: CreateThread() problem, need help

Michael Dunn1-Jan-05 20:06

Michael Dunn

1-Jan-05 20:06

Read the error message Wink | ;)

You're passing a function with the signature unsigned long (*)(void*) but CreateThread() expects the signature unsigned long (_stdcall *)(void*). So you need to add the __stdcall calling convention to your callback. The usual way of doing this is with the CALLBACK or WINAPI macro (which you'll see in the ThreadProc help page).

--Mike--
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Magnae clunes mihi placent, nec possum de hac re mentiri.

MS Outlook

Member 16241621-Jan-05 5:30

Member 1624162

1-Jan-05 5:30

I would like to know how to write applications with MS outlook.
For example I want to know how to get the address book information, how to send an e-mail, etc ...
Where can I found a reference for these API's ?

Thanks.

Re: MS Outlook

ThatsAlok1-Jan-05 6:16

ThatsAlok

1-Jan-05 6:16

MS OutLook Api are very well Documented in MSDN library:

Just Type OUTLOOK in you local copy of MSDN, you will got all you NEED

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

DCOM And COM+

Rassul Yunussov1-Jan-05 5:27

Rassul Yunussov

1-Jan-05 5:27

What is the difference???? I can't understand, isn't it the same thing???

who knows pascal??

includeh101-Jan-05 4:37

includeh10

1-Jan-05 4:37

i need a little pascal language knowledge,
who can give me a good link for that?

is semicolon ";" useful in pascal? i am really confused.

thx

includeh10

Re: who knows pascal??

Ravi Bhavnani1-Jan-05 5:13

Ravi Bhavnani

1-Jan-05 5:13

In Pascal, the semicolon is used to separate (not terminate) statements. A separator is required at the end of the statement, unless the statement is followed by another separator (i.e. a block terminator like end or until).

The following code fragments are both valid:

if (someCondition())
   then
     begin
       y = 0;  { semicolon required }
       x := 1  { semicolon optional because next token is "end" }
     end;

if (someCondition())
   then
     begin
       y := 0;
       x := 1;
     end;

Since it doesn't hurt to always separate statements with a semicolon, it's best to just always use it (as in C).

/ravi

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Re: who knows pascal??

Archer2822-Jan-05 13:21

Archer282

2-Jan-05 13:21

just a little note
anything between {} is a multiline comment

Re: who knows pascal??

Ravi Bhavnani2-Jan-05 13:27

Ravi Bhavnani

2-Jan-05 13:27

Or a single-line comment.

/ravi

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Explorer-style Menu Bar

Anonymous1-Jan-05 3:51

Anonymous

1-Jan-05 3:51

Hello,

I'm interested in creating a menu bar, which is very similar to the explorer menu bar.
I've found some information here: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/faq/iemenubar.asp

In this article it is explained that the menu bar is actually a modified toolbar.
The problem I have is how you could achieve the appearance of the menu. (the bar a the top)
The menu items are totally flat and if you move your mouse pointer over a specific item it is highlighted. (the background gets blue, the text color switches to white)
Did they implement their own drawing routine or did they use some standard drawing mechanisms?

Re: Explorer-style Menu Bar

Ravi Bhavnani1-Jan-05 5:17

Ravi Bhavnani

1-Jan-05 5:17

If you don't care about menu customization, you could instead just use Bruno Podetti's excellent NewMenu[^] Cool | :cool:

class.

/ravi

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Weird linker error(Visual Studio .net 2003)

Anonymous1-Jan-05 2:38

Anonymous

1-Jan-05 2:38

Hi, I'm about to make a class which can take care of some console IO, but i have a problem, in the bottom of the header(under class definition) i have added a function like this:
static inline cIOManager &endl(cIOManager &io)
{
io.CursorPos(io.StartX(),io.Y()+1);
return io;
}
But the problem is that i gets the following linker errors:

IOManager test error LNK2019: unresolved external symbol "public: void __thiscall cIOManager::CursorPos(short,short)" (?CursorPos@cIOManager@@QAEXFF@Z) referenced in function "class cIOManager & __cdecl endl(class cIOManager &)" (?endl@@YAAAVcIOManager@@AAV1@@Z)

IOManager test error LNK2019: unresolved external symbol "public: short __thiscall cIOManager::StartX(void)" (?StartX@cIOManager@@QAEFXZ) referenced in function "class cIOManager & __cdecl endl(class cIOManager &)" (?endl@@YAAAVcIOManager@@AAV1@@Z)

IOManager test error LNK2019: unresolved external symbol "public: short __thiscall cIOManager::Y(void)" (?Y@cIOManager@@QAEFXZ) referenced in function "class cIOManager & __cdecl endl(class cIOManager &)" (?endl@@YAAAVcIOManager@@AAV1@@Z)

I don't know why these are there, in the definition of the class i have:
inline void CursorPos (short pX,short pY);
...
inline short Y();
...
inline short StartX();

And in the source(.cpp file) file i have these lines:

inline void cIOManager::StartCursorPos(short pStartX,short pStartY)
{
...
}
...
inline short cIOManager::Y()
{
return mCursorPos.Y;
}
...
inline short cIOManager::StartX()
{
return mStartCursorPos.X;
}

So i really can't understand why i gets linker errors, can someone please explain?

Re: Weird linker error(Visual Studio .net 2003)

Michael Dunn1-Jan-05 7:41

Michael Dunn

1-Jan-05 7:41

Inline functions must be defined in the header file so the code is visible in all cpp files.

--Mike--
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Magnae clunes mihi placent, nec possum de hac re mentiri.

byte shifting during recv

Siemensiana1-Jan-05 2:01

Siemensiana

1-Jan-05 2:01

Hi!
i have a client server application
the server waits for the client to establish a connection and then recv some data
my problem is if the client sends one byte of data the server gladly acepts it but when the client sends two or more bytes then after sometime the client receives one byts first then the next byte(s) .As s result byte shiftin takes plave and my programs goes haywire
Help!!!!!!!1

Re: byte shifting during recv

toxcct1-Jan-05 2:20

toxcct

1-Jan-05 2:20

if you know the amount of bytes the server have to receive, you can while until that amount is not received entierely (and until an error didn't occur)

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: byte shifting during recv

Siemensiana2-Jan-05 1:58

Siemensiana

2-Jan-05 1:58

Thanx but i already tried that!
it is a little crude way of doing things
Also my problem is that i donot know how much data i am going to get in one go?
if any other method can be aplplied then please help!!!!

Re: byte shifting during recv

toxcct2-Jan-05 8:45

toxcct

2-Jan-05 8:45

Siemensiana wrote:
Also my problem is that i donot know how much data i am going to get in one go?

but the sender knows how much datas it sends...

so, you could send first an int with the number of bytes that are about to be received, then send the packet.
This way, the receiver will catch the value, and enter a while loop until that amount of data is not received entierly...

is is good for you like that ?

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: byte shifting during recv

siemensiana6-Jan-05 21:26

siemensiana

6-Jan-05 21:26

thanx man
that did solve some of my problem
but in my case the sender is a third party system
hence i donot know how much the sender is going to send
I cannot pass an "int" there can i?
hence am still stuck in the same old problem

Please....

KORCARI1-Jan-05 1:28

KORCARI

1-Jan-05 1:28

Please can you show me any links where I can get information about working with DEBUG in Visual C++.Net
cause Im experiencing big difficulties in error finding.Thank you.

Re: Please....

toxcct1-Jan-05 2:22

toxcct

1-Jan-05 2:22

you can add some TRACE(), some breakpoints, and look where the program freezes

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Program that starts up when the computer is booting

hirancg1-Jan-05 1:20

hirancg

1-Jan-05 1:20

How can I create a program that is executed when the computer is switched on. I want to do this to check how many times the internet has been accessed using the internet explorer

hiran

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