Managed C++/CLI

10-Dec-06 11:21

The error message gave you the answer! Regex::IsMatch is not static. You have to create an instance of Regex first.

"We make a living by what we get, we make a life by what we give." --Winston Churchill

Re: Regex

bsaksida10-Dec-06 11:45

bsaksida

10-Dec-06 11:45

George L. Jackson wrote:
The error message gave you the answer! Regex::IsMatch is not static. You have to create an instance of Regex first.

No i don't need to create static. I yust found an error. IsMatch uses 2 parameters. Code belove works fine

if (Regex::IsMatch(txtUserName->Text, "[a-zA-Z0-9]{4,13}") == false)

Re: Regex

George L. Jackson10-Dec-06 14:48

10-Dec-06 14:48

My bad! I just noticed that IsMatch has four overloads. Two of them are static.

George

"We make a living by what we get, we make a life by what we give." --Winston Churchill

Operator :

sheshidar9-Dec-06 3:04

sheshidar

9-Dec-06 3:04

Dear Friends..Can any one tell me about operator ":"

Re: Operator :

George L. Jackson9-Dec-06 3:49

Re: Operator : [modified]

9-Dec-06 3:49

You cam use ":" with "?". In the following example, the "?" can be interpreted as "then" and the ":" as else.

int result = i > 10 ? 9 : 11;

This is equivalent to:

<br />
if (i > 10)<br />
  result = 9;<br />
else<br />
  result = 11;<br />

The ":" is also used with "public", "private" and "protected" to define security access within a class and inheritance.

<br />
clas Derived : public Base<br />
{<br />
public:<br />
protected:<br />
private:<br />
};<br />

You also use it to create a constructor initialize list in classes:

<br />
class Foo<br />
{<br />
public:<br />
  Foo() : value(1) {}<br />
protected:<br />
private:<br />
  int value;<br />
};<br />

George

Re: Operator :

toxcct10-Dec-06 6:18

toxcct

10-Dec-06 6:18

the operator : doesn't exist

Don't know where to start ?
Refer the Forums Guidelines and ask a friend

[VisualCalc 3.0][Flags Beginner's Guide]

George L. Jackson10-Dec-06 14:49

Re: Operator : [modified]

10-Dec-06 14:49

":" is not an operator by itself but in combination with "?" as a conditional operator "?:".

-- modified at 20:54 Sunday 10th December, 2006

-- modified at 20:54 Sunday 10th December, 2006

"We make a living by what we get, we make a life by what we give." --Winston Churchill

Re: Operator :

toxcct10-Dec-06 22:23

toxcct

10-Dec-06 22:23

that's why i said that operator : doesn't exist Suspicious | :suss:

moreover, : appears in other situations, like classes inheriting in class definitions, construction list in class constructors definitions, etc...
but still this is not an operator per se.

Don't know where to start ?
Refer the Forums Guidelines and ask a friend

[VisualCalc 3.0][Flags Beginner's Guide]

George L. Jackson11-Dec-06 3:27

11-Dec-06 3:27

I never said it was an operator. I just demonstrated its usage, and you explicited stated it was not an operator and restated my previous post.

Also, I believe the ":" falls under the category of punctuation. Punctuation and operators are lexemes.

Nevertheless, I appreciate your comments and hope we didn't confuse anyone.

"We make a living by what we get, we make a life by what we give." --Winston Churchill

Mixed project...

Shy Agam9-Dec-06 0:52

Managed C++ to Unmanaged...

9-Dec-06 0:52

Hello,

I'm trying to accomplish the following:
A C++ dll project, which uses another dll (which I didn't write).
My project would contain certain unmanaged functions, and then a managed class to encapsulate those functions.
I'm new to C++.NET, and especially to the mixed projects stuff, so after a long unsuccessful journy of trial and error, I've decided to ask here...

What kind of project should I create?
What should I do to create this kind of project?
How and where should I #include "TheDllI'mUsing.h"?
How do I tell the compiler to treat the "TheDllI'mUsing.h" as a pure unmanaged file?
Anything else I might need to know...?

A link to an article would be good too... Smile | :)

Thanks in advance,
Shy.

Re: Mixed project...

Nish Nishant10-Dec-06 3:22

Nish Nishant

10-Dec-06 3:22

You can create a regular DLL project, and enable /clr compilation.

Regards,
Nish

Nish’s thoughts on MFC, C++/CLI and .NET (my blog)
Currently working on C++/CLI in Action for Manning Publications. (*Sample chapter available online*)

Simple Question

Revant Jain8-Dec-06 5:53

Revant Jain

8-Dec-06 5:53

Hello,

I have written a program in c++.Now I want to make that program a part of a c# program. So to integrate the programs would I have to conver the unmanged c++ code to managed c++/CLI ?

Thanks in advance

Re: Simple Question

led mike8-Dec-06 6:36

led mike

8-Dec-06 6:36

Revant Jain wrote:
I have to conver the unmanged c++ code to managed c++/CLI ?

Maybe. Or you could add mixed mode managed wrapper classes.

led mike

Shy Agam7-Dec-06 22:09

7-Dec-06 22:09

Hello there fellow programmers,

I'm coding a class library which deals with windows hooks.
It uses the SetWindowsHookEx() API function and provides classes for specific hook types.
So far, the code is written in C#, but I only got as far as low-level hooking (i.e. LLKeyboard, LLMouse hooking).

If I try to use global hooks which are not LL, they of course fail, as they are injected to all processes on the system, and not all processes support managed assemblies.
What I intend to do is write a C++ dll, and use it to communicate with my C# dll.

I know there's a way to compile C++.NET code to pure unmanaged C++ code.
How can I do this?
Is compiling managed C++ as unmanaged going to work with the hooks?
Or perhaps I should write my C++ dll directly in C++, and not through C++.NET code... D'Oh! | :doh:

Thanks in advance,
Shy.

led mike8-Dec-06 6:35

led mike

8-Dec-06 6:35

It sounds like you could use a "mixed mode" project in VC++. If you search MSDN and here on Code Project Articles you will find much information on "mixed mode" development.

led mike

Pierre Leclercq10-Dec-06 6:08

Pierre Leclercq

10-Dec-06 6:08

shyagam wrote:
What I intend to do is write a C++ dll, and use it to communicate with my C# dll

IMO this will cause problems, as DLL are loaded in the process
memory space. Maybe you should consider rewriting your hook in unmanaged C++.
If you cannot do this, you could try to encapsulate your C# dll in an executable
(written in C#). Then you inject your dll written in unmanaged C++, which will be in charge
of running your executable with appropriate parameters. If you need return values
then you should consider encapsulating your C# dll in a COM object (which could also
be written in C#). In this case, your C++ dll would invoke this COM object.
Many options available.

shyagam wrote:
I know there's a way to compile C++.NET code to pure unmanaged C++ code.
How can I do this?

You should go to
"Project/Properties/Configuration Properties/General/Common Language Runtime support"
and select "No common language runtime support"
You might need to review other settings depending on what you want to do.

shyagam wrote:
Is compiling managed C++ as unmanaged going to work with the hooks?

If your project has the "No common language runtime support" set, it will be a regular
dll, so that should do.

Shy Agam10-Dec-06 6:18

10-Dec-06 6:18

I've created a Win32 project, and specified in the wizard that I'm writing a dll which exports symbols.
I wrote an unmanaged class to deal with the hooks, and I want to encapsulate it in a managed class using the mixed mode.
So I did Project > Add Class, and created a managed class.
Moreover, I've changed the "Common Language Runtime Support" option to /clr...
Is that wrong?

Pierre Leclercq10-Dec-06 7:33

Pierre Leclercq

10-Dec-06 7:33

If you have written your hook code in unmanaged C++, why do you want to encapsulate it
in a managed class? Do you need to reuse the code somewhere else?

Shy Agam10-Dec-06 7:42

10-Dec-06 7:42

I want my C# apps to be able to use my C++ exported classes.
I can't do that directly from C#, thus I intend to write a proxy managed C++ class.

Pierre Leclercq10-Dec-06 8:02

Pierre Leclercq

10-Dec-06 8:02

So you seem to be on your way then! Smile | :)

Shy Agam10-Dec-06 8:06