pinning problem - .NET Framework

Similar topics

by: Chris Finlayson | last post by:

Hello: I have a question on pinning types via 'fixed'. In "Com and .NET interoperability" by Andrew Troelsen, he provides a simple example of ..NET -> Native interoperability: int theVals={1,2,3,4}; MyCustomDLLWrapper.AddArray(theVals,theVals.Length) where MyCustomDLLWrapper wraps a native (C++) .dll:

C# / C Sharp

1543

question about pinning pointers

by: J | last post by:

I understand how to pin pointers as they are declared, but for some reason, I can'f figure out the syntax for predaclaring a pointer and then pinning in afterward like you would if you wanted to embed an unmanaged object: Assumingthat pAudioU has alread been defined as the appriate type of pointer, Instead of pAudioU = new __pin AudioDriver_U; // syntax error it seems necessary to take the extra step of creating an intermediate

C# / C Sharp

1657

pinning pointer problem

by: demofo | last post by:

Does the pinning pointer safe?since the Read function will change the ppBuffer points to unmanaged C++ heap,how does the dot net runtime knows they will not move the allocated memory (pointed by ppBuffer)during the garbage collection? class NonGCClass { private: int GetBufferLength() {

.NET Framework

1321

"Managed extensions" pinning question

by: Ioannis Vranos | last post by:

Consider the code: wchar_t __pin *p= &(someCommand->ToCharArray()); _wsystem(p); p=0;

.NET Framework

1542

Pinning Vectors

by: Brian Victor | last post by:

I have a situation where I have a vector<gcroot<ManagedWrapperClass*> > whose contents I need to pass to an unmanaged function. Is there a way to pin all the pointers in the vector for that function? I tried to copy the vector into another vector with a pinned pointer type, but the compiler will not allow __pin to be used in a template parameter. Thanks! -- Brian

.NET Framework

2216

Pinning Pointers with __pin in Managed C++

by: Hexar Anderson | last post by:

I have two questions: a) From documentation located at http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vcmxspec/html/vcManagedExtensionsSpec_7_7.asp, it says, "Pinning a sub-object defined in a managed object has the effect of pinning the entire object. For example, if any element of an array is pinned, then the whole array is also pinned. There are no extensions to the language for declaring a pinned array. To pin an...

.NET Framework

3418

Pinning a managed object that is being used for a unmanged callback

by: Maxwell | last post by:

Hello, Newbie question here. I have a VS.NET 2003 MC++ (not C++/cli) project where I have a managed class reference in a unmanaged class...simple enough. To keep things short I am for the most part attempting to do what is this article by Nish: http://www.voidnish.com/articles/ShowArticle.aspx?code=cbwijw I have to hook up a unmanaged callback to a managed method using IJW NOT P\Invoke. So I am employing this "Thunk" or "Bridge" class...

.NET Framework

7909

C# 1 - PInvoke - Pinning structures via GCHandle

by: steve | last post by:

Hi all, I want to understand more about how the pinvoke pinning process works. I'm writing some code that calls DeviceIoControl. DeviceIoControl provides a generic interface to device drivers. Its signature is deliberately open-ended so that it can be highly generic. Refer SDK for more. I want to access the drive geommetry of an SD-Card via

C# / C Sharp

12557

C++/CLI, Unmanaged to Managed callback without using a bridge, or pinning pointers.

by: DaTurk | last post by:

Hi, I have a rather interesting problem. I have a unmanged c++ class which needs to communicate information to managed c++ via callbacks, with a layer of c# on top of the managed c++ ultimatley retreiving the data. Presently all of the c++ code is still in .NET 1.1, so we're using a _nogc bridge class wrapped in a _gc c++ class in order to facilitate this interop. But we've converted everything not c++ to .NET 2.0 and would love to

.NET Framework

9645

What is ONU?

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...

General

10147

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

Online Marketing

10090

The easy way to turn off automatic updates for Windows 10/11

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,...

Windows Server

9949

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

by: tracyyun | last post by:

Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...

General

7499

Access Europe - Using VBA to create a class based on a table - Wed 1 May

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...

Microsoft Access / VBA

5380

Trying to create a lan-to-lan vpn between two differents networks

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...

Networking - Hardware / Configuration

5511

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

4050

transfer the data from one system to another through ip address

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

C# / C Sharp

3645

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP