Managed C++/CLI

11-May-02 1:15

I discovered that you cannot use #pragma unmanaged for a member function of a managed class, even though the member function uses only unmanaged calls. Thus I have concluded that you can use #pragma unmanaged only for unmanaged global functions or for unmanaged classes. But then, what's the bloody point, since unmanaged code will get compiled to native code anyway! Confused | :confused:

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

James T. Johnson11-May-02 1:55

11-May-02 1:55

Thats the whole point, you can call the x86 code from managed code Smile | :)

#pragma managed
public __gc class MyClass
{
  // other garbage
  
  void DoLotsOfUnmanagedThings()
  {
    unmanagedCall();
  }
};
 
#pragma unmanaged
 
void unmanagedCall()
{
  // 100% unmanaged code goes here
}

James

Simplicity Rules!

Nish Nishant11-May-02 3:38

11-May-02 3:38

Well, when it sees a fuilly unmanaged function, why doesn't it auto-apply #pragma unmanaged to that block?

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

James T. Johnson11-May-02 3:51

11-May-02 3:51

Don't know Hmmm | :|

I tricked you by letting you think I actually learned something when in reality i've been too busy sleeping and working on the screensaver Smile | :)

Oh and looking for good songs on mp3.com, here, here, and here. Big Grin | :-D

James

Simplicity Rules!

Nish Nishant11-May-02 4:52

11-May-02 4:52

James T. Johnson wrote:
Simplicity Rules!

Try saying that to Chris Losinger

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

James T. Johnson11-May-02 5:02

11-May-02 5:02

James

Simplicity Rules!

Rama Krishna Vavilala11-May-02 4:29

Rama Krishna Vavilala

11-May-02 4:29

Nish [BusterBoy] wrote:
Well, when it sees a fuilly unmanaged function, why doesn't it auto-apply #pragma unmanaged to that block?

1. Managed Code - Code that compiles into IL (atleast in the first version of CLR in the next version it would be possible to have IL unmanaged functions)
2. Unmanaged Code - Code that compiles into native processor's instructions

So you see there is nothing called an unmanaged function before anything gets compiled.

It is perfectly legal to have global functions in managed code. ILASM can create and use it( may be VB.NET).

Nish Nishant11-May-02 4:50

11-May-02 4:50

Rama Krishna wrote:
So you see there is nothing called an unmanaged function before anything gets compiled.

That's what I thought too, till it disallowed me from using the #pragma unmanaged directive to a function Frown | :(

Nish

Regards,
Nish
Native CPian.
Born and brought up on CP.
With the CP blood in him.

VC++.Net

Ollie8-May-02 23:16

Ollie

8-May-02 23:16

If i write a program in UNMANAGED VC++ 7.0 using ATL 7.0 and\or MFC 7.0, do I have to install the .Net framework or can I just supply the required ATL\MFC DLL's to the users machine?

Is installing the framework just for Microsoft's CLR?

James T. Johnson8-May-02 23:35

8-May-02 23:35

If its unmanaged you don't need the framework; only when you cross into managed code do you need the framework on the users machine.

James

Simplicity Rules!

Ollie9-May-02 0:02

Ollie

9-May-02 0:02

So I guess if I am using 'normal' and Managed code I just have to install the framework?

James T. Johnson9-May-02 0:18

9-May-02 0:18

Yes. If your application uses both; the framework has to be installed.

Something that just came to mind though. If you have it set so it can *optionally* load the managed code (ie it loads the managed code on demand and doesn't have anything about the managed code compiled aside from a GUID), then the framework could possibly be an option for the client as well... But if they decide to use it they will need the framework.

James

Simplicity Rules!

James T. Johnson9-May-02 0:20

9-May-02 0:20

BTW, hopefully this time next year or the year after we can assume that many will have the framework installed so the fact there is a 20MB download won't be as much of an issue.

James

Simplicity Rules!

Nish Nishant9-May-02 0:24

9-May-02 0:24

The redistributable is already part of windows update Smile | :)

Nish

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James T. Johnson9-May-02 0:30

9-May-02 0:30

End users, using windows update?!?!?! That'll be the day.... Poke tongue | ;-P

The problem with windows security problems isn't the problems its that stupid users don't patch their computers up to get rid of the problems.

This is non-existant in the *nix community because almost everyone who uses it knows about security problems and patches them ASAP.

James

Simplicity Rules!

Nish Nishant8-May-02 23:35

8-May-02 23:35

Ollie wrote:
If i write a program in UNMANAGED VC++ 7.0 using ATL 7.0 and\or MFC 7.0, do I have to install the .Net framework

No, you dont have to.

Ollie wrote:
can I just supply the required ATL\MFC DLL's to the users machine?

Yes, that's what you should do Smile | :)

Nish

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ColinDavies8-May-02 23:38

ColinDavies

8-May-02 23:38

Ollie the use of the word UNMANAGED implies deviant behavior, Many of us are calling it 'normal' programming now.

Regardz
Colin J Davies

Sonork ID 100.9197:Colin

More about me Smile | :)

Nish Nishant8-May-02 23:41

Newbie in trouble with MC++

8-May-02 23:41

With the advent of .NET, normality got inversed

Nish

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Jaims7-May-02 22:05

Jaims

7-May-02 22:05

Hello, I've been working for a couple of years with VC++; a few months ago I started to see information about Managed C++ but actually I don't know nothing at all about it. I've been searching recently for some introductory articles or explanations but I've been not able to find it.

Does anyone know where could I find something like that? In the board everybody seems to be already deeply inside the world of MC++, but I need something more basic!!

Thanx in advance

Jaims

Albert Pascual8-May-02 6:04

Albert Pascual

8-May-02 6:04

You could buy a book about MC++? Or you can read the msdn.microsoft.com they have a pretty good introduction about .net, you can also look in http://www.microsoft.com/visualc/

The easiest way is to jump in the pool. Install Visual C++ .NET and create a project.

After coding a "hello world" you won't be able to stop Poke tongue | ;-P

Nish Nishant8-May-02 6:53

8-May-02 6:53

Albert Pascual wrote:
After coding a "hello world" you won't be able to stop

True. Very true indeed!

Nish

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Nish Nishant8-May-02 6:49

8-May-02 6:49

Jaims wrote:
but I need something more basic!!

Read this one for a first time introduction to MC++
http://www.codeproject.com/useritems/mcppintro01.asp

Then this one for intro to GUI apps
http://www.codeproject.com/useritems/mcppwinforms01.asp

And this one for IJW
http://www.codeproject.com/useritems/mcppthreadsync01.asp

Regards
Nish

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Brian Delahunty8-May-02 7:52

Brian Delahunty

8-May-02 7:52

Nish's with links Smile | :)

Read this one for a first time introduction to MC++
http://www.codeproject.com/useritems/mcppintro01.asp

Then this one for intro to GUI apps
http://www.codeproject.com/useritems/mcppwinforms01.asp

And this one for IJW
http://www.codeproject.com/useritems/mcppthreadsync01.asp

Happy clicking Big Grin | :-D

"Isn't that the "write once, debug everwhere" language?" Tom Archer on Java... Smile | :)

Nish Nishant8-May-02 8:03