473,669 Members | 2,421 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Calling .NET function from C code

Hi,

I am trying to write a .NET Class Library which generates an XML file from the input parameters of all the functions that are called in a C DLL.

(Everytime the GUI call the C DLL's function, I try to generate an XML file of the function called together with the parameters, this means calling the XML generating .NET library inside every function of the C DLL)

When I try to access the function like
GenXML::WriteXm lFile *myfile = new WriteXmlFile();
myfile->Run(parameters );
I get the error C3624 'System::Object ': the compiler cannot find this type; it is defined in the assembly 'mscorlib'

[NOTE : i've also added
#import "..\debug\prgdi r\GenXML.tlb"
using namespace GenXML;
to the start of the main file of the C DLL]

Help!!
Nov 16 '05 #1
2 1734
GeRmIc wrote:
Hi,

I am trying to write a .NET Class Library which generates an XML file from the input parameters of all the functions that are called in a C DLL.

(Everytime the GUI call the C DLL's function, I try to generate an XML file of the function called together with the parameters, this means calling the XML generating .NET library inside every function of the C DLL)

When I try to access the function like
GenXML::WriteXm lFile *myfile = new WriteXmlFile();
myfile->Run(parameters );
I get the error C3624 'System::Object ': the compiler cannot find this type; it is defined in the assembly 'mscorlib'

[NOTE : i've also added
#import "..\debug\prgdi r\GenXML.tlb"
using namespace GenXML;
to the start of the main file of the C DLL]

Help!!


#include <mscorlib.h> ?

Cheers

Arne Janning
Nov 16 '05 #2
Yes, i've included that but still the error remains!!
I guess it is in referencing the function, how should I make the C DLL recogoinze the presense of the .NET Library in the project?
"Arne Janning" wrote:
GeRmIc wrote:
Hi,

I am trying to write a .NET Class Library which generates an XML file from the input parameters of all the functions that are called in a C DLL.

(Everytime the GUI call the C DLL's function, I try to generate an XML file of the function called together with the parameters, this means calling the XML generating .NET library inside every function of the C DLL)

When I try to access the function like
GenXML::WriteXm lFile *myfile = new WriteXmlFile();
myfile->Run(parameters );
I get the error C3624 'System::Object ': the compiler cannot find this type; it is defined in the assembly 'mscorlib'

[NOTE : i've also added
#import "..\debug\prgdi r\GenXML.tlb"
using namespace GenXML;
to the start of the main file of the C DLL]

Help!!


#include <mscorlib.h> ?

Cheers

Arne Janning

Nov 16 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

8
2954
by: Muthu | last post by:
I've read calling conventions to be the order(reverse or forward) in which the parameters are being read & understood by compilers. For ex. the following function. int Add(int p1, int p2, int p3); The parameters here can be read either in the forward order from p1 till p3 or reverse order from p3 till p1. Can anyone explain what is the advantage/disadvantage of either of
3
2554
by: Glenn C. Rhoads | last post by:
I'm having a problem calling a C function from a publicly available library file. To get the code to compile, I had to declare the function as an external C function as follows. extern "C" lib_function(....); But when I run my C++ program, I get a segmentation fault in one of the library functions (not the function I directly called but one a few levels down in the calling hierarchy). According to the user manual provided with the...
13
4101
by: RainBow | last post by:
Hi everyone, (Very Sorry, if this is the wrong group in which I am posting this query). Code snippet: //C library typedef int (*PFunc)(int* aArg); void call_c_foo(PFunc aPtrtoFunc) {
6
3304
by: jchao123 | last post by:
Dear All, I have an MDB file (Access 2000/XP) which contains generic routines I use in various apps (eg, API calls, File access classes etc). I have compiled into an MDE file which I reference in VBA from my other Access applications. This works fine and I'm quite happy with it... except for one area; error handling. In most of my functions I call an error handler which
1
2899
by: Jesse McGrew | last post by:
Hi all, I'm trying to make a plugin DLL for a third-party application, using VC++ .NET 2003. This DLL acts as a bridge between the C++ plugin API of the application, and my actual plugin code written in C#. When the app calls my unmanaged functions, they work fine. But as soon as my unmanaged functions call managed functions (in the same source file!), the app reports an "unknown exception" error.
1
2597
by: H.B. | last post by:
Hi, I need to make a function that can display data on my Managed C++ app and be called by an unmanaged C++ DLL. Something like : void Form1::Form1_Load(System::Object * sender, System::EventArgs * e) { MyDLLInit(MyAppDisplayFunction); }
18
4343
by: John Friedland | last post by:
My problem: I need to call (from C code) an arbitrary C library function, but I don't know until runtime what the function name is, how many parameters are required, and what the parameters are. I can use dlopen/whatever to convert the function name into a pointer to that function, but actually calling it, with the right number of parameters, isn't easy. As far as I can see, there are only two solutions: 1) This one is portable. If...
15
22836
by: dspfun | last post by:
Hi, Is it possible to print the function name of the calling function? For example, f1() and f2() both calls f3(), in f3() I would like to print the name of the function calling f3() which could either be f1() or f2(). BRs!
11
3192
by: briankirkpatrick | last post by:
Forgive me if my post seems a little amateurish... I'm requesting assistance from some of you smart folks out there to get the managed calls write that meet the specification in the esa.h for Esa_Init. When I make a call, VS2005 reports "AccessViolationException" and refers to the 4th parameter (EsaT_State_Handle). I don't know how to define nor pass this reference correctly to the legacy DLL. What am I doing wrong? Thanks in...
16
517
by: teju | last post by:
hi, i am trying 2 merge 2 projects into one project.One project is using c language and the other one is using c++ code. both are working very fine independently.But now i need to merge both and my c++ code should call c code.but when i tried to call a function in c code externing that function in my c++ code, i am getting unresolved external symbol error. Whatever i try its giving more and more errrors...so is it possible to merge 2...
0
8465
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
8383
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
8895
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
1
8588
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
7407
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
1
6210
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
1
2797
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
2032
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
2
1788
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.