Managed C++/CLI

Perspx4-Aug-08 4:48

Perspx

4-Aug-08 4:48

Well put

Regards,
--Perspx

"The Blue Screen of Death, also known as The Blue Screen of Doom, the "Blue Screen of Fun", "Phatul Exception: The WRECKening" and "Windows Vista", is a multi award-winning game first developed in 1995 by Microsoft" - Uncyclopedia

gayatri.neelema4-Aug-08 20:44

4-Aug-08 20:44

Let me answer your question one by one:
I dont think all my questions are irrerevelant to the group.

Secondly thanks a lot for your interpretation that i ask people questions and learn .If my intention is that then i would join some classes rather that posting questions in the forum .
I can buy books thats again a good thought but let me make it clear to you that had i not read any books then i would not even be coding , or rather my questions are not soo preliminary
and thirdly searching on the google , i have been searching for these questions but when i could not find appropriate ans i ask questions here

Please for gods sake help people but do not tell them what to do.
You could have put the same thing in a better way or rather you could have directed me to the correct group which you haven't this clearly shows that you like to rebuke ppl,
its always easy to point mistakes but difficult to help others.

led mike5-Aug-08 5:29

led mike

5-Aug-08 5:29

gayatri.neelema wrote:
Please for gods sake help people but do not tell them what to do.

Look, you've been a member of this site for 6 months. I know what's going on here far better than you do. I suggest that you listen to me rather than argue with me. You have posted this question IN THE WRONG FORUM, period. Figure it out or get lost, either way I don't care.

led mike

gayatri.neelema7-Aug-08 0:33

Re: Red Green Yellow Traffic signal code problems (It would be great If someone could help me out on this one)

7-Aug-08 0:33

I have not argued with you but asked u to be more sensible and help ppl.
may be you have more experience but u dont have to any right to be rude you could have been better but u r getting worse fine i understand that its ur problem and i am not even interested in what or who u r ,
i better chose to ignore u and not care for any of ur messages

[Message Deleted]

math4152-Aug-08 9:28

math415

2-Aug-08 9:28

[Message Deleted]

Paul Conrad2-Aug-08 18:53

Paul Conrad

2-Aug-08 18:53

Geeze, long enough post? It's best just to post only your trouble spot.

math415 wrote:
If your program won't at least compile and run (even if it gives incorrect answers) you'll lose 10 points.

Homework problem. You should really be consulting with your instructor. Hmmm | :|

"The clue train passed his station without stopping." - John Simmons / outlaw programmer

"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon

removing unused registry keys

gayatri.neelema1-Aug-08 23:30

Re: removing unused registry keys

1-Aug-08 23:30

Hi ,
I want to write a sample application for registry cleaning.
I wanted to know how do we decide if a particular registry key is invaid or not so that we can delete the key.
How do we search for invalid registry keys.
I am using c++
Thanks,
Gayatri

Mark Salsbery2-Aug-08 6:53

Re: removing unused registry keys

2-Aug-08 6:53

The keys under HKEY_CLASSES_ROOT are pretty well defined - you can
cleanup orphaned file/type associations relatively easily.

Beyond that I'm not sure how much you can reliably do. There's no magic
APIs that will tell you if an item in the registry is still being used.

I do know you can make your system unusable very easily Smile | :)

Good luck!
Mark

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

gayatri.neelema4-Aug-08 1:35

Re: removing unused registry keys

4-Aug-08 1:35

Thanks for you answer.
It would be nice of you if you cold tell me how will is the relation mainitained for the keys which are being used .
I am novice to it,so it would be great if you could explain it with an example.

Thanks

Mark Salsbery4-Aug-08 7:02

Active Threads in a Process

4-Aug-08 7:02

These are just a few links to related reading...

Registry[^]
HKEY_CLASSES_ROOT Key[^]
SAMPLE: FileAsso.exe Demonstrates How to Use File Associations[^]
Launching Applications[^]

I didn't look up the COM stuff. Research!

Mark

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

gayatri.neelema1-Aug-08 23:13

Re: Active Threads in a Process

1-Aug-08 23:13

Hi,
I want to find the active threads running in a process.
I am using c++ and win32 API's.

Thanks,
Gayatri

teejayem2-Aug-08 3:33

teejayem

2-Aug-08 3:33

If this isn't a Managed C++ question (using .NET) please direct your question to C++ Forum[^]. If you are using the managed libraries, you can use the System.Diagnostics.Process[^] class to get the Threads[^] that belong to that process.

Re: Active Threads in a Process

Mark Salsbery2-Aug-08 6:59

"no GUID has been associated with this object" when calling managed dll from native C++

2-Aug-08 6:59

You could use the WMI Win32_Process and Win32_Thread classes.

Mark

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

Benny Jaminé31-Jul-08 2:26

Benny Jaminé

31-Jul-08 2:26

I need to call a managed C++ dll from our native C++ code. To manage this i followed the tutorial in http://support.microsoft.com/kb/828736 "How to call a managed DLL from native Visual C++ code in Visual Studio.NET or in Visual Studio 2005."
However I'm using VS2008 and the article is using a managed C# dll.
Were the article says:

Replace the following lines of code in the AssemblyInfo.cs file

[assembly: ComVisible(false)]
[assembly: AssemblyDelaySign(false)]
[assembly: AssemblyKeyFile("")]

with the following.

[assembly: ComVisible(true)]
[assembly: AssemblyDelaySign(false)]
[assembly: AssemblyKeyFile("..\\..\\MyKeyFile.SNK")]

I added the SNK file to the projects property "linker->Advanced->Key File" and changed [assembly: ComVisible(false)] in the AssemblyInfo.cpp file.

Now when I build my solution I get following errors in the native code:
error C2787: 'WNXal::NeXus' : no GUID has been associated with this object
error C2079: 'pINeXus' uses undefined struct 'WNXal::INeXus'

Code snippit:
--------------

#import "../Lib/NeXus/References/WNXal.tlb" raw_interfaces_only 
using namespace WNXal; 
 
// Initialize COM. 
HRESULT hr = CoInitialize(NULL); 
 
// Create the interface pointer. 
INeXus pINeXus(__uuidof(WNXal::NeXus)); // ERROR  
 
long lResult = 0; 
 
// Call the Add method. 
e = pINeXus->Initialize();  // initialise is signature is virtual int WNXal::INeXus::Initialize(); 
                 
// Uninitialize COM. 
CoUninitialize();

Benny

Re: "no GUID has been associated with this object" when calling managed dll from native C++

led mike31-Jul-08 4:59

led mike

31-Jul-08 4:59

Stray Bullet wrote:
I need to call a managed C++ dll from our native C++ code.

Alternatively you can make a mixed mode project to solve that problem without the need to expose the managed classes using COM

[Native module] calls --> [Mixed Mode module] calls --> [Managed module]

no COM.

led mike

How to switch to Form Designer for inserted Form.h?

uusheikh30-Jul-08 22:06

uusheikh

30-Jul-08 22:06

I have designed a Winform Form, lets say Form1.h. I can switch to its Form designer and drop components etc. Now, if i insert this Form1.h in a different solution/project, i can compile, call the Form, but i cannot switch to the form designer. It's like a plain .h file. How can i make VS2008 understand that this is a form, so that i can edit it visually?

I'm using VS2008 C++/CLR.
Thanks

Re: How to switch to Form Designer for inserted Form.h?

Mark Salsbery31-Jul-08 7:23

Re: How to switch to Form Designer for inserted Form.h?

31-Jul-08 7:23

uus831 wrote:
Now, if i insert this Form1.h in a different solution/project, i can compile, call the Form, but i cannot switch to the form designer.

What if you copy and add the Form1.resx file to the new project as well?

Mark

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

uusheikh31-Jul-08 15:25

uusheikh

31-Jul-08 15:25

Hi, i tried that too, but its just the same. I cant switch to form designer.

Re: How to switch to Form Designer for inserted Form.h?

dybs1-Aug-08 18:23

dybs

1-Aug-08 18:23

I ran into a similar problem not long ago (using VS2005 Pro). Here's how I solved it

1. In the project you want a copy of the Form1, simply add a new Form object. Be sure to call it Form1 was well (or whatever you called it in your original project).
2. Delete the .h and .cpp files for the form you just created. Leave the .resx file alone.
3. Copy Form1.h and Form1.cpp from your original project to your new project and compile. Be sure to rename them to whatever you called the form you just deleted. Since your copied form is now the same name, it should work just fine.

I'm not certain if this is exactly what I did, but I have it documented at work. I can check on it Monday.

Dybs

Re: How to switch to Form Designer for inserted Form.h?

uusheikh3-Aug-08 21:20

uusheikh

3-Aug-08 21:20

Thanks!!! It works! I have tried, and it works great. Except, that you need to rename the namespace so that it is the same in the new project.

Great tip!
Thanks again.

Re: How to switch to Form Designer for inserted Form.h?

dybs4-Aug-08 7:32

dybs

4-Aug-08 7:32

Oh yeah, kinda forgot the namespace thing Smile | :)

No problem, glad to help.

Dybs

Threading problem

MarkB77730-Jul-08 14:03

MarkB777

30-Jul-08 14:03

Hi,

I'm trying to call CreateThread() from windows.h using the below code:

The problem argument seems to be the emphasised one...

<br />
unsigned long i;<br />
<br />
CreateThread(NULL, 0, LiftThread, (void *)i, 0, &id);<br />

Im getting the error:

Error 5 error C2440: 'function' : cannot convert from 'unsigned long (__cdecl *)(void *)' to 'LPTHREAD_START_ROUTINE'

Does anyone know how I could fix this?

Cheers,

Mark Brock

Click here to view my blog

Re: Threading problem

Mark Salsbery30-Jul-08 14:33