Debuging Interop: C# -> C++ - Managed C++/CLI Discussion Boards

Mark Salsbery5-Jul-08 9:29

5-Jul-08 9:29

if (some_ref_handle->GetType() == MdiClient::typeid)
{
   //some_ref_handle references a MdiClient object!
}

Re: GetType for class

LionAM5-Jul-08 9:47

LionAM

5-Jul-08 9:47

Thank you!
At first I got an error because MdiClient is a private(?) member
of the class (which is not shown in the IntelliSense list).
But with
Windows::Forms::MdiClient::typeid
it works.

Alex

Re: GetType for class

Mark Salsbery5-Jul-08 9:53

Mark Salsbery

5-Jul-08 9:53

Cool

LionAM wrote:
MdiClient is a private(?) member
of the class

MdiClient IS the class.

LionAM wrote:
But with
Windows::Forms::MdiClient::typeid
it works.

Oops - I guess I assumed "using namespace Windows::Forms;"

typeid needs to know the type at compile time. You could also use something like

if (some_ref_handle->GetType() == Type::GetType("Windows::Forms::MdiClient"))

for a runtime check.

Cheers,
Mark

Re: GetType for class

LionAM5-Jul-08 12:00

LionAM

5-Jul-08 12:00

Hello!

::MdiClient::typeid works, but MdiClient::typeid
gives

error C3223: 'System::Windows::Forms::Form::MdiClient' : you cannot apply 'typeid' to a property

Alex

Re: GetType for class

Mark Salsbery5-Jul-08 12:43

Mark Salsbery

5-Jul-08 12:43

MdiClient is in the System::Windows::Forms namespace, not the
System::Windows::Forms::Form namespace (which doesn't exist -
System::Windows::Forms::Form is a class).

Either of these should work:

using namespace System::Windows::Forms;
...
   if (objectref->GetType() == MdiClient::typeid)

if (objectref->GetType() == System::Windows::Forms::MdiClient::typeid)

Mark

UDP messages

dSolariuM5-Jul-08 3:26

dSolariuM

5-Jul-08 3:26

Hi all,
I have a server application that sends a udp message to clients,
But it receives the message as well,
And I don't want this....
I want only other clients Receive the message.
Please help me,
Thank you.

Every new thing you learn,Gives you a new personality.

Re: UDP messages

Mark Salsbery5-Jul-08 9:31

Mark Salsbery

5-Jul-08 9:31

dSolariuM wrote:
I have a server application that sends a udp message to clients

HoW?

Mark

Debuging Interop: C# -> C++

Tomerland4-Jul-08 4:39

Tomerland

4-Jul-08 4:39

Dear experts,

I have the following problem.

I have "C++ - unmanaged code" and I want to use it in my managed C#-Applications. Therefore I have a "managed C++" - wrapper around my "unmanaged C++ - Code"

At the end I have the following "call-sequence"

"Managed C#" -> "Managed C++" -> "Unmanaged C++"

All works fine, but the problem beginns at debugging the unmanged C++-Code.
a) I cannot step-into the "unmanged C++-Code"
b) The unmanged objects are not expanded in the debugger

Does somebody have any advice?

Kind regards

Re: Debuging Interop: C# -> C++

Tomerland4-Jul-08 4:45

Tomerland

4-Jul-08 4:45

Ok,

I found the solution the "stop-into"-Problem by Myself: Just the the debugger-option to: "Enable unmanaged code debugging".

What remains is the second problem: The unmanaged objects are not expanded.

Kind regards

Re: Debuging Interop: C# -> C++

Tomerland4-Jul-08 4:55

Tomerland

4-Jul-08 4:55

Hallo,

I found another part of solution.

If I set for all 3 components the debugger-option to "mixed mode" than I can expand the "unmanged objects" in the "managed C++"-Wrapper Smile | :)

)))

But I still cannot expand my "unmanaged C++"-objects in my "manged C#"-Code.

I fear, this is not possible due to totally different languages

Kind regards

To Get Decimal separator

mikobi4-Jul-08 3:50

mikobi

4-Jul-08 3:50

How can I get Decimal separator in the system that my program run
I use Visual c++ NET

Re: To Get Decimal separator

LionAM5-Jul-08 6:34

LionAM

5-Jul-08 6:34

Hello!
Have a look at:

System::Globalization::CultureInfo::CurrentCulture->NumberFormat->NumberDecimalSeparator

Alex

Re: To Get Decimal separator

mikobi6-Jul-08 23:08

mikobi

6-Jul-08 23:08

Thanks a lot

TextBox Format

mikobi3-Jul-08 21:59

mikobi

3-Jul-08 21:59

Dear All,

I have a telephone field on my form for example, it can be Account number, how can I format my text1 field so that what I Capture be what I need.

Is there anyone use C++/CLI in the real project?

Tal Rasha's Guardianship3-Jul-08 7:26

Tal Rasha's Guardianship

3-Jul-08 7:26

I have a project written in C++,and I want to use the .NET framework as the architecture in the next version. Rewrite all the code in C# is impossible, so I give my attention to C++/CLI.

I have less understanding about this tech, I only know these points about it:

1.The original C++ code can be compiled in the C++/CLI compiler
2.I can use all of the C++ function in the new platform
3.I can use all of the .NET framework function in my C++ code
4.For deploy issue, I will only need to install the .NET framework will my application, then everything could be OK

Are there any other things need to be noticed?

Re: Is there anyone use C++/CLI in the real project?

Mark Salsbery3-Jul-08 7:39

Mark Salsbery

3-Jul-08 7:39

Tal Rasha's Guardianship wrote:
4.For deploy issue, I will only need to install the .NET framework will my application, then everything could be OK

You may need to deploy additional things used by your C++ code, like MFC and/or the CRT libraries.

You should also understand interop between native and managed code, if it applies.

Visual C++ .NET Programming Guide[^]

Mark

Re: Is there anyone use C++/CLI in the real project?

Tal Rasha's Guardianship3-Jul-08 19:04

Tal Rasha's Guardianship

3-Jul-08 19:04

Thanks for your reply.

I cared about if C++/CLI can be used in a large C++ project, are there any troubles may happen?

Re: Is there anyone use C++/CLI in the real project?

Mark Salsbery4-Jul-08 11:17

Mark Salsbery

4-Jul-08 11:17

C++/CLI is great for making the transition from native C++ to the managed .NET
world - that's it's intended purpose. If you have C++ code and you want to use
the .NET framework then it's great.

Eventually you'll notice that the development tools using C# are much better, but
C++/CLI let's you use your existing C++ code as you make the transition.

I use C++/CLI extensively, along with native C++ and C#. There's no troubles that are any
different than using any other .NET language. Having the rich .NET framework available to
existing C++ code is great.

It's worth taking the time to study and understand the fundamentals of managed programming.
Especially important is performance-critical applications if you're making a lot of transitions
between managed and unmanaged code.

C++: The Most Powerful Language for .NET Framework Programming[^]
CLR Development (How Do I in Visual C++)[^]

Mark

Why is BinaryWriter() is inserting unwanted bytes?

BuckBrown2-Jul-08 6:41

BuckBrown

2-Jul-08 6:41

Hi, I'm using Visual Studio 2005 C++/CLI. I have a requirement that needs to write some ASCII to a file followed by binary data. I set up a BinaryWriter(FileStream) and everything is okay except that there is a byte preceding the String^ variables denoting the number of characters to follow. I do not want these "extra" bytes in the file. Is there a way to surpress these bytes from being written to the file?

Thanks,
Buck

Re: Why is BinaryWriter() is inserting unwanted bytes?

Mark Salsbery2-Jul-08 7:31

Mark Salsbery

2-Jul-08 7:31

You need to write the String chars yourself.

BinaryWriter has a Write() method that writes a Char.

for (int i = 0; i < str->Length; i++)
   writer->Write(str[i]);

Of course, you won't be able to read the data back in as a String
without some way of indicating where strings end in the file.

Mark

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

Visual c++ NET Application Probleme

mikobi2-Jul-08 2:32

mikobi

2-Jul-08 2:32

After I have finished my Visual c++ NEt 2005 Application, I try to execute it in an other PC: just a Copy the exe file. I have a message the configuration is incorrect.

What to do ?

Re: Visual c++ NET Application Probleme

Polar_Sheep2-Jul-08 4:03

Polar_Sheep

2-Jul-08 4:03

Install Visual Studio Redistributable, and you must click on properties of your project -> Configuration properties and Configuration change from DEBUG to RELEASE.
I must install .NET framework 3.5 to another computer. It is working on Vista, under XP It dont works.

Why are you reposting the same question?

led mike2-Jul-08 5:04

led mike

2-Jul-08 5:04

You have been a member long enough to know that's wrong, what a jerk.

Also, are you planning on ever learning how to research, study and learn on your own or are you planning on asking anonymous people on internet forums for all your information for the rest of your career, however short that may be?

led mike

Re: Why are you reposting the same question?

mikobi3-Jul-08 21:53

mikobi

3-Jul-08 21:53

What do you lose if you reply me ?. I am at the end of my two applications in Visual c++ NET 2005, I am very happy for that.

I greeting All who have help me. Congratulations to CodeProject with Led Mike who don't like me.

I need your help to who need the World go ahead. The deployment of Visual c++ NET Application is not easy.

Deployment of Application

mikobi1-Jul-08 22:01

mikobi

1-Jul-08 22:01

I have finished my Visual c++ NET 2005 Application. I need to run it in other PC> When I copy the exe file it don't start.

Who can help me ?

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