C / C++ / MFC

rishimohan26-Sep-07 18:45

26-Sep-07 18:45

THANKS A TON.... it worked....

Nishad S26-Sep-07 20:18

26-Sep-07 20:18

rishimohan wrote:
THANKS

Welcome... Smile | :)

- NS -

Cedric Moonen25-Sep-07 20:07

Cedric Moonen

25-Sep-07 20:07

As explained before, you should use Dependency Walker to check which dll are required by your application. You should also distribute the release version of your application, not the debug one (legally, you are not allowed to do so).

Cédric Moonen
Software developer

Charting control [v1.2]

Nelek25-Sep-07 22:15

Nelek

25-Sep-07 22:15

Where is this Dependency Walker to be found? I will most probably need it as well.

Another question... Can dynamic and static linking be mixed? I mean...

Can I tell my programm to statically link the MFC dlls that are needed but in other part of the programm to be able to choose a specifical dll to do some tasks but allowing to change it with other two (depending on what i want to do)???

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Help me to understand what I'm saying, and I'll explain it better to you

Wink | ;)

Cedric Moonen26-Sep-07 0:13

Cedric Moonen

26-Sep-07 0:13

Nelek wrote:
Where is this Dependency Walker to be found? I will most probably need it as well.

Google is your friend[^] Wink | ;)

Nelek wrote:
Can I tell my programm to statically link the MFC dlls that are needed but in other part of the programm to be able to choose a specifical dll to do some tasks but allowing to change it with other two (depending on what i want to do)???

Sorry, but I don't really understand what you mean. What are those 'specifical' dll's you talk about ? Some third party dll's that you are using for your application ? Changing the settings about MFC statically or dynamically linked will only affect how the MFC libraries will be linked to your application. This has absolutely no impact on what you do with other dll's.

Cédric Moonen
Software developer

Charting control [v1.2]

Nelek26-Sep-07 0:35

Nelek

26-Sep-07 0:35

One of those dlls is a third party, the rest have to be programmed by me and used in my programm. One dll will be the main, calling the third party dll and choosing which of my dlls have to be used according to the objective tasks.

The problem is that I'm completely newbie with DLLs, I know that I have to read info (I'm already searching documentation) but I need to think about the structure to give a little schema to my boss as he wants D'Oh! | :doh:

.

So resuming.

My programm may be used in computers where no visual studio is installed, so I have to pack the needed MFC DLLs in the same place as my exe. Or statically link them, that would make to have them integrated in my exe (difference will be in exe's size).

And with the others... I have thought to statically link the main dll because it will always used, and the others dinamically to be choosen when needed.

It's this more or less correct (if possible)?

Thanks and sorry for such a newbie question

Cedric Moonen26-Sep-07 0:53

Cedric Moonen

26-Sep-07 0:53

Nelek wrote:
And with the others... I have thought to statically link the main dll because it will always used, and the others dinamically to be choosen when needed.

Nope, you can't statically link with dll's. In case of MFC, they gave you the choice because they provide both versions: dll or static library, so you can simply choose which one you use.
In the case of third party dll's, you won't have the choice, you need to distribute them with your application (except if they provide a static library too, which I doubt).

Cédric Moonen
Software developer

Charting control [v1.2]

Nelek26-Sep-07 1:32

Nelek

26-Sep-07 1:32

From the others DLLs there is only one third party DLL, the rest have to be programmed by me. And there is where I don't know how to start with Sigh | :sigh:

Actually I would prefer to programm my functions in a new module/class and just calling the third party dll to stablish the connection when needed, but my boss wants to do it in different dlls and that is what confuse me. Once the connection is made, I should theoretically be able to read from / write to with usual functions.

I know that I need to learn about DLLs and more in programming but the f***ing project has a deadline and I'm afraid about it Unsure | :~

rishimohan26-Sep-07 17:27

26-Sep-07 17:27

if you don't mind can you please explain how to check and use Dependency Walker????

thanks

Steven Jan25-Sep-07 22:01

Steven Jan

25-Sep-07 22:01

MFC42D.DLL is the debug version of the MFC library and is only installed with Visual Studio. If you compile your program as a release version, it will use MFC42.DLL which is present on all Windows systems.

Steven

rishimohan26-Sep-07 18:44

26-Sep-07 18:44

THANKS A TON....it worked....
1 more help required please, how to incorporate MS Office package file in my API????

David Crow26-Sep-07 3:13

David Crow

26-Sep-07 3:13

See here, particularly the last part.

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

rishimohan26-Sep-07 19:47

26-Sep-07 19:47

THANKS FOR THE LINK... it should help, i'll study this and come back but my specific requirement is that, i want my API to be executed when somebody tries to open a specific pre decided file of MS Office package.... can u help me with this or some kind of referrence ????

Questions about creating a 3D array class

Eytukan26-Sep-07 4:53

Eytukan

26-Sep-07 4:53

And if your loads a DLL at run time, you wont be able to check this with "depends". So you need to check what are the dlls your exe might use and check "depends" for all these dlls. Otherwise it would keep on failing !

Jemmy : Deadline? Pfft, a real programmer eats deadlines for breakfast. :P

Mark: I thought real programmers ignored deadlines

Best wishes to Rexx[^]

leileicats25-Sep-07 18:07

leileicats

25-Sep-07 18:07

I am doing one project in the book "Data Structures and Algorithms with Object-Oriented Design Patterns in C++". The project is designing a 3D array class based on previous 2D array class.

Code as follows:

template <class t="">
class Array2D
{
public:
Array2D(int w, int h):width(w), height(h), array(w*h) {}
... ...
protected:
int width, height;
Array<t> array;
}

template <class t="">
class Array3D
{
public:
Array3D(int l, int w, int h):length(l), width(w), height(h), array(l) {}
... ...
protected:
int length, width, height;
Array< Array2D<t> > array;
}

I am planning to create a array with elements of 2D array. I could use the initializer "array(l)" to define the length of array. But the size of element "Array2D<t>" should be "width*height". But I don't know how to initialize the size of "Array2D<t>" in the class of Array3D.

Could anybody give me some advice please?

Re: Questions about creating a 3D array class

Branislav26-Sep-07 0:29

Branislav

26-Sep-07 0:29

One solution can help you to make something new:

class Array2D
{
public:
Array2D(int w, int h):width(w), height(h), array(w*h) {}
... ...
protected:
int width, height;
Array array;
}

template
class Array3D :public Array2D
{
public:
Array3D(int l, int w, int h)
: Array2D( w, h), length(l)
{}

... ...
protected:
int length;
//Array< Array2D > array;
}

wav file

aldo hexosa25-Sep-07 18:04

aldo hexosa

25-Sep-07 18:04

does anyone know how to take a sample signal from a wav file? thank you

Re: wav file

Nishad S25-Sep-07 19:43

Replace numbers with words?

25-Sep-07 19:43

What did you mean by sample signal? Did you mean the sample rate?

- NS -

Re: wav file

Mark Salsbery26-Sep-07 6:17

Mark Salsbery

26-Sep-07 6:17

You need to know the format of a WAV file. Here's an example:

WAV File Format[^]

Using the format you can work your way through the file to the samples.

If the samples are compressed, you can use the Microsoft
Audio Compression Manager[^] or some other method to uncompress
the samples.

Mark

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

MoboTech25-Sep-07 18:00

MoboTech

25-Sep-07 18:00

I'm beginning C++. When I put a year, it calculate a month and day (ex. 5 23) for a particular holiday.

How do I convert these numbers into words. (ex. March Twenty Three)

Am I suppose to use individual functions or if-else statement? How is it done?

Thanks.

Nishad S25-Sep-07 19:39

25-Sep-07 19:39

The simplest way that you can done easily is using an array.

Eg:

char* sMonth[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };

cout << sMonth[nMnth];

But for the date, it is costly, but you can use...

I suggest implement a logic for the date.

- NS -

MoboTech25-Sep-07 19:44

MoboTech

25-Sep-07 19:44

Is there another way, perhaps functions or if-else statements?

Our class haven't learned about arrays yet.

Nishad S25-Sep-07 20:03

25-Sep-07 20:03

I see...

I think you are seeking for a logic using if-else or functions, right?
Well... Smile | :)

char* MonthToStr( int n )
{
    if( n == 1 ) return "Jan";
    else if( n == 2 ) return "Jan";
    // .....
    // .....
    else if( n == 12 ) return "Dec";
    else return "Invalid";
}

main()
{
    char* s = MonthToStr( 1 );
}

- NS -

p_25-Sep-07 20:18

25-Sep-07 20:18

i think u should use switch() and case to print words
ya its little bit lengthy
i dont know about any function for this