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by: Weston Fryatt |
last post by:
(Sorry for spamming multiple groups, But I need a solution to this problem)
I think this should be a simple question on Memory Allocation in a managed DLL and passing a memory pointer over to an unmanaged DLL.
I have a "Unmanaged" Client DLL that I'm creating a Managed "wrapper" to be used in VB.Net and/or C#..
In the my Client DLL (unmanaged), There are several functions where I need to allocate a "client side" memory buffer to...
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by: Mark Jerde |
last post by:
I'm trying to learn the very basics of using an unmanaged C++ DLL from C#.
This morning I thought I was getting somewhere, successfully getting back
the correct answers to a C++ " int SumArray(int ray, int count)"
Now I'm having problems with C++ "return(false)" being True in C#.
Here is the C# code.
=========================
using System;
using System.Runtime.InteropServices; //
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by: Mark Ingram |
last post by:
Hi,
how can i return an array of strings from an unmanaged c++ dll into a c#
application?
cheers
Mark
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by: Johannes Unfried |
last post by:
Problem
Best practice needed to marshal STL data from managed code to unmanaged code & vice vers
Details
managed code is written in managed C++ & accesses the unmanaged code (i.e. lives in a mixed mode DLL
unmanaged code is written in unmanaged C++ & resides in an unmanaged DL
Product used is VS.NET 200
Please tell me what is the best practice for getting and setting data fro
unmanaged to managed part when I have a class with...
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by: Tommy Svensson \(InfoGrafix\) |
last post by:
I've been instructed to work againt a huge unmanaged C++ API from a C#
application.
Now, the only way, as I've understood it, is to go the Managed Extensions
for C++ way. This means I have to write a wrapper between unmanaged API and
my managed app.
Now on to the question:
If there's an unmanaged API class called X with a defined method
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by: Serge BRIC |
last post by:
My application, written in .NET VB, tries to get a communication port handle
from a TAPI object with this code:
Dim vFileHandle As Byte() = appel.GetIDAsVariant("comm/datamodem")
The vFileHandle is supposed to be a file handle (an IntPtr, I suppose). How
can I convert this Byte() in this IntPtr ?
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by: Aston Martin |
last post by:
Hi All,
********************** My Situation **********************
I am working on project that involves passing a structure to unmanaged
code from .Net world (well using C#). Perhaps an example will prove
useful.
structure MyStruct
{
// this is a complicated struct declaration in the sense
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by: =?Utf-8?B?U2hhcm9u?= |
last post by:
Hi Gurus,
I need to transfer a jagged array of byte by reference to unmanaged
function, The unmanaged code should changed the values of the array, and when
the unmanaged function returns I need to show the array data to the end user.
Can I do that?
How?
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by: hanthehead |
last post by:
In order to use a C# dll from our unmanaged C++ project I have created a mixed managed\unmanaged c++ dll.
This dll is passed an unmanaged class which contains vector<CDBRecord> m_vecRecords member variable. Within the managed C++ dll m_vecRecords is added to. This all works fine until our unmanaged C++ project attempts to m_vecRecords.clear() and I get an exception.
"Microsoft C++ exception: std::bad_alloc at memory location 0x0012ed68.."...
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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,...
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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...
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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...
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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...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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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
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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...
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