using a .lib file - C / C++ / MFC Discussion Boards

ozgul1-Jun-04 3:19

1-Jun-04 3:19

fatal error C1083: Cannot open include file: 'time': No such file or directory
Error executing cl.exe.
How can i solve this problem?
thanks...

Re: fatal error C1083

Cedric Moonen1-Jun-04 3:40

Cedric Moonen

1-Jun-04 3:40

Errr.. Try perhaps the correct file name (I don't think "time" is a valid header file Poke tongue | ;-P

). Perhaps "Time.h" will work better Smile | :)

Please advice best TreeList controls for .NET ?

vgrigor1-Jun-04 3:05

vgrigor

1-Jun-04 3:05

Please advice best TreeList controls for .NET ?
I need to choose what to buy.

DevExpress suite -to compare with.

What is else best graphical suites there are on market for .NET ?

Thanks.

Creating a file in ram

Paolo Ponzano1-Jun-04 3:05

Paolo Ponzano

1-Jun-04 3:05

hi, it's possible to create a file in ram and accessing it with fopen/fread funcion?I've got some libraries that works on an mp3 file and I need them to work only on first 30 seconds, since they work on file stream and ends when EOF is reached I tought to create a file, copy first 30 seconds into and work in ram as it is a real file, but I don't know how... thanks
Paolo

Re: Creating a file in ram

jmkhael1-Jun-04 3:21

jmkhael

1-Jun-04 3:21

Check the memory mapped files

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: Creating a file in ram

Jim Crafton1-Jun-04 4:36

Jim Crafton

1-Jun-04 4:36

As Papa mentions check out memory mapped files - but you will need to use the Win32 read/write calls not fread/fwrite. You'll need to use ReadFile/WriteFile using the file handle that you get back from creating the mem mapped file. Check out CreateFileMapping (I was curious about this too Smile | :)

) and it's related functions on MSDN.

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Re: Creating a file in ram

Paolo Ponzano1-Jun-04 6:16

Paolo Ponzano

1-Jun-04 6:16

thanks to Papa amd Jim, but I've lib code that uses fread/fopen ( for portability iusse), so I can't use Win32 API, I think I'll copy the file into a new one on HD and then delete it after my works on it, thanks
bests
Paolo

using a .lib file

FASTian1-Jun-04 2:45

FASTian

1-Jun-04 2:45

How do use lib file. Do i just have to declare the lib name in the link tab. How do i get the function names that are exposed by the library??

Re: using a .lib file

Nirav Doshi1-Jun-04 2:50

Nirav Doshi

1-Jun-04 2:50

Instead of putting it in the link tab, you can also use:

#pragma comment(lib, "libfile")

I suppose, if you have the DLL of the LIB file, you can view the dependencies from the "Depends" Visual Studio tool. It will list the functions exported.

Hope this helps.

* Don't wish it was easier, wish you were better! *

Re: using a .lib file

FASTian1-Jun-04 3:16

FASTian

1-Jun-04 3:16

Actually the project did not make any dll file....i have the complete code for the lib project. The project compiles ok no errors there. Only when i add the lib file to the project and try to call the global function for that lib then i get loads of unresolved symbols errors. Any ideas how to deal with this or what i am doing wrong here.

Thanks

Re: using a .lib file

David Crow1-Jun-04 3:44

David Crow

1-Jun-04 3:44

FASTian wrote:
...i get loads of unresolved symbols errors. Any ideas how to deal with this or what i am doing wrong here.

The exported function is not being called correctly. Make sure C++'s name mangling is not biting you.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Re: using a .lib file

imposterrific3-Jun-04 9:33

imposterrific

3-Jun-04 9:33

I'm curiuos about this too. Could you expound upon "name mangling" and how to avoid it?

Re: using a .lib file

David Crow3-Jun-04 10:21

David Crow

3-Jun-04 10:21

Try this search.

"When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen

Font

Mike Doner1-Jun-04 2:18

Mike Doner

1-Jun-04 2:18

Hey everybody,

I'm hoping more people can shed some light onto my font problem that I discussed in an earlier post.

Our application has a drawing area where the user can assign font type and size to a particular object. We're currently storing the logical units for the font, is this a bad thing? Will this display the same on all output devices (printer/screen etc)?

To me it seems like its better practise to store the actual point size, what's the dis/advantages of each and why? anyone?

Mike.

Re: Font

Roger Allen1-Jun-04 5:00

Roger Allen

1-Jun-04 5:00

The only thing I would say is that dealing with fonts and a point size is usually much easier as you can get the actual point size for any given DC (be it printer or screen etc) using:

size = -MulDiv(pointSize, pDC->GetDeviceCaps(LOGPIXELSY), 72);

With logical coordinates you probably have to go through another translation first.

Also, it may depend on what DC mapping mode you are using.

Roger Allen - Sonork 100.10016
Strong Sad: I am sad I am flying
_{Who is your favorite Strong?}

struct problem

kfaday1-Jun-04 2:13

kfaday

1-Jun-04 2:13

Hello! i have a small problem

in my thread class (called CHilos) i declared as a member variable:

[CODE]
struct Param {
HWND *ventana;
CHilos *hilo;
} *param;[/CODE]

and in my thread 'begin' function i have:

[CODE]
void CHilos::Comenzar(LPVOID lParametro)
{
DWORD handle;
param->ventana = static_cast<hwnd *="">(lParametro);
param->hilo = this;

CreateThread(NULL,0,CHilos::ThreadProc,(LPVOID)param,0,&handle);
}
[/CODE]

and i get a runtime error in both param-> lines. In the createThread i used to pass this instead of param.

[CODE]CreateThread(NULL,0,CHilos::ThreadProc,(LPVOID)this,0,&handle);[/CODE]

what am i doing wrong?
thanks!

Re: struct problem

jmkhael1-Jun-04 2:42

jmkhael

1-Jun-04 2:42

param = ??

param is a pointer to a struct Param, meaning its pointing to a struct param, but which one?

you do have something like this?

Param xParam = {0};
param = &xParam;

or maybe like this?
param = new Param;

or again like this?
param = (Param*) calloc (1, sizeof(Param));

in the last two case dont forget to delete (for new), free (for calloc) respectively when you are done using the param (thread end?).

Papa

while (TRUE)
Papa.WillLove ( Bebe ) ;

Re: struct problem

Nirav Doshi1-Jun-04 2:43

Nirav Doshi

1-Jun-04 2:43

Change:

<small>kfaday wrote:</small><br />
DWORD handle;<br />
param->ventana = static_cast(lParametro);<br />
param->hilo = this;

to:

DWORD handle;<br />
Param *pNewParam  = (Param *) lParametro

Now you can access your members with pNewParam!

* Don't wish it was easier, wish you were better! *

Re: struct problem

kfaday1-Jun-04 5:35

kfaday

1-Jun-04 5:35

thanks to both of you!!
i should have came up with that!

how can i paste a GIF , BMP or JPEG as background on dialog

Zeeshan Bilal1-Jun-04 1:37

Zeeshan Bilal

1-Jun-04 1:37

HI,

PLZ tell me how can i place JPEG , GIF or BMP as a background on dialog ..

Actualy i want a beautifull background of my application (MFC Dialog Based)
if any source code or help
i not wana a use ACTIVEX ..

thanx

Re: how can i paste a GIF , BMP or JPEG as background on dialog

Anthony_Yio1-Jun-04 1:44

Anthony_Yio

1-Jun-04 1:44

Just query for 'skin' in your article search and you will see tons of it. From dialogbox to combobox.

Sonork 100.41263:Anthony_Yio

Re: how can i paste a GIF , BMP or JPEG as background on dialog

Zeeshan Bilal1-Jun-04 1:56

Zeeshan Bilal

1-Jun-04 1:56

Actualy i have my own made JPEG ,BMP, GIF..

and i want to use these a background
and i want to place controls like button , combos etc on that background

date/time

ozgul1-Jun-04 1:32

ozgul

1-Jun-04 1:32

How can i get the locale system time and date?
Can u give some examples?
Please help me..
Thanks everybody...

Re: date/time

Anthony_Yio1-Jun-04 1:40

Anthony_Yio

1-Jun-04 1:40

Try this, a simple one (MFC)

CTime t = CTime::GetCurrentTime();

struct tm* osTime;  // A pointer to a time structure (TIME.H)
osTime = t.GetLocalTm( NULL );
ASSERT( osTime->tm_mon == 2 ); // Note zero-based month!

Sonork 100.41263:Anthony_Yio

Re: date/time

Zeeshan Bilal1-Jun-04 1:48

Zeeshan Bilal

1-Jun-04 1:48

i hope following will help u

CTime stime = CTime::GetCurrentTime();
CString s = stime.Format("%A, %B %d, %Y,%I:%M : %S :%p" );

AfxMessageBox(s);

chk it
take care

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