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PInvoke

Need help creating a RAS phonebook entry

14 Jul 2010 by #realJSOP

Here it is according to Microsoft (found with google):http://msdn.microsoft.com/en-us/library/aa377274%28VS.85%29.aspx[^]A little googling (search phrase used was "C# rasentry") turned up some code:http://www.dotnet247.com/247reference/msgs/41/206366.aspx[^]It's not that hard to...

How can I import C++ DLL function using p/invoke into C#?

3 Oct 2016 by #realJSOP

0) Make double-damn sure your method prototype is correct.1) Change the "out" parameters to "output".2) Why are you calling an unmanaged DLL to do that when .Net provides exactly the same functionality?

Is it possible in pinvoke to pass the intptr from C# and get the address of struct in C++ DLL

22 Feb 2021 by 11917640 Member

Marshal::PtrToStructure: Marshal.PtrToStructure Method (System.Runtime.InteropServices) | Microsoft Docs[^] Additional overloads: Marshal.PtrToStructure Method (System.Runtime.InteropServices) | Microsoft Docs[^] Marshal.PtrToStructure Method...

Problem with P/Invoke

8 Jul 2013 by _Asif_

As elaborated by SA you are passing null to sample_getinfo that caused the error. A quick solution to allocate memory to this pointer. change this line char* Info;to thischar* Info = new char[255];and try again.

using un-managed code in C#

27 Mar 2011 by Alexiy

As in C # use the following code:Cutting simpleHeader.hextern "C" class __declspec (dllexport) MyClasspublic:{bool Open(int port, int baud);}Prog.cppextern "C" __declspec (dllexport) bool MyClass::Open(int port, int baud){ char COM_string[20]; ...

StackOverflowException on every PInvoke

15 Aug 2011 by andreas1024

Hi.I have a strange problem with P/Invoke: every PInvoke call produces a StackOverflowException in mscorlib.dll. Even LoadLibrary or GetProcAddress. The strangest thing is that the code is running fine, I get the right return value back and so on. But the Exception is thrown a short time...

A Versatile MessageBox Replacement

7 Oct 2012 by Andriks

A MessageBox replacement with some much needed extras

Advanced Data I/O using IPC on Windows

14 Apr 2018 by Andy Galluzzi

Join me to create the most advanced yet most simple to use full duplex MMF based IPC for Windows

how to use GetClusterInformation() function in clusapidll in c#

12 Mar 2014 by ankit sharma

I want to use GetClusterInformation() function to get the version of MSCS . below is the code snippet I am trying. Any help is much appreciated.public static class Test_LoadLibrary { [DllImport("kernel32", SetLastError = true, CharSet = CharSet.Unicode)] static extern...

using pinvoke SHAppBarMessage for making application bar?

9 Mar 2013 by anssary2010

I try to bulid application to make new appliction bar using SHAppBarMessage but icant any body can help me explain step by step using SHAppBarMessage in .net manged code

How to pin a pointer to managed object in C#?

31 Jul 2011 by apaka

Unmanaged code calls my functions. In first function I sould pass back pointer to my managet object. Sometimes later some of my othrer functions got called with that same pointer as one of parameters . I sould dereference it use it to perform some calculations and then if it is not neaded...

Get GUID for DosDevice.

14 Aug 2011 by apaka

I'm trying to convert a device name of the form"\Device\HarddiskVolumeXX" to a name of the form "\\?\Volume{GUID}. How can I do this in C# ?

C# P/Invoke Data Types Convertion

21 Feb 2012 by Areff

hi, every bodyi have a little problem in p/invoke :my function signature in c++ is some thing like thisReadData (char* data);that i will pass address of string to that fucntion and my data will be filled in the address (function works fine but just data marshaling goes wrong and...

c# pass structure from unmanaged c++ dll

8 Aug 2012 by AS01234

Help with passing structure from unmanaged c++ dll to c# ?I am struggling with passing a structure from an unmanaged third party c++ dll back into my c# application. The dll is for a spectrometer. All of the other commands to the spectrometer work fine except this one. I am pasting more...

c# pass structure from unmanaged c++ dll

11 Oct 2012 by AS01234

The reference from Philip Stuyck was very helpful, but I want to also acknowledge receiving help from the company that makes the spectrometers (mightexsystems.com). I still don't like the solution, because now it uses unsafe code in the wrapper, essentially c++, to de-reference the...

c# pinvoke to native int *

6 Sep 2013 by AS01234

I am talking to a low-cost Tucsen camera through it's dll. Most of the commands are working, but there is one command that I can't seem to marshal correctly. The signature of the call in the CamApi.h file is:CAM_API int GetRoi(int *pPtX, int *pPtY, int *wid, int *hei, const char...

c# pinvoke to native int *

15 Sep 2013 by AS01234

The folks at Tucsen camera were very helpful. I sent them the project. They tested it, said that they modified it a little, and sent it back. It still gave the same result, but since it was working for them when they sent it I became more confident that the pinvoke code was working all along,...

Inserts Tabular Text from Text Files into Microsoft Word Table

26 Aug 2010 by Bassam Alugili

Inserts tabular text into Microsoft Word document

regular-expression

Move Multiple Windows Simultaneously

23 Jan 2014 by BillWoodruff

1. same question Ron Beyer asked you: please define 'external application windows' in this context precisely.2. is this a WindowsForms project ? if not, what's the context: WPF ? ... C++ ?3. is there one-and-only-one window that if moved moved all others ? if more than one window can...

Invoke FFmpeg to export frames

5 Apr 2015 by Bjørn

Using ffmpeg DLLs directly in C# to extract frames and create a thumbnail sheet

Access Violation with PInvoke

28 Nov 2014 by bling

Try the Marshal functions instead of VirtualAlloc. Also, use IntPtr instead of void * for eventBuf and privData. Try a "ref ushort" for eventBufSize and numEvents.[DllImport("csta32.dll", CallingConvention = CallingConvention.StdCall)]public static extern unsafe int acsGetEventPoll(uint...

EnumResourceTypes enumerates only MUI type?

9 Feb 2013 by CHill60

Replace private delegate bool EnumResTypeProc(IntPtr hModule, string type, int param);private bool EnumResTypeProcInstance(IntPtr hModule, string type, int param)withprivate delegate bool EnumResTypeProc(IntPtr hModule, int type, int param);private bool EnumResTypeProcInstance(IntPtr...

26 Jul 2010 by Christian Graus

Apart from the obvious answer ( use google/read a book ), www.pinvoke.net has signatures for a lot of dll methods that people like to import and use in .NET.

Interop between C++/CLI and VB6

25 Jul 2012 by Christian Graus

If you have a vanilla dll you're calling, then you can use pinvoke if you get the code right. If you're writing the dll, you're better off using COM to get it to work with VB6, assuming you have no choice in that question.

Ping over specific Interface with IcmpSendEchoEx2

29 Oct 2014 by Christian Sack

Hello guys,First of all: sorry for my broken english...And now to my question:I'm looking for an equivalent for the function IcmpSendEchoEx2.I am new to the pinvoke thematics and so I tried it with the following method:It is a modified version of the pinvoke.net article:...

Ping over specific Interface with IcmpSendEchoEx2

29 Oct 2014 by Christian Sack

So here is the full working code: public static PingReply Send(IPAddress srcAddress, IPAddress destAddress, int timeout = 5000, byte[] buffer = null, PingOptions po = null) { if (destAddress == null || destAddress.AddressFamily != AddressFamily.InterNetwork ||...

How to convert a C char[][] in C#

23 Jan 2015 by clemhindie

Hi every body,I'm working on Winform project in C# and I have to use a C written dll to communicate with an OpenVMS machine.Some methods are using a C char** or an unsigned char** parametersWhen i try to "translate" those parameters in string array, byte array or a StringBuilder and...

How to access the same DLL with multiple thread in C#

16 Aug 2021 by Code Fan

All .Net managed threads within the same app domain share the same memory heap, no need to do anything extra, unless, of course, you're working with multiple threads from different app domains or processes.

Second value not getting passed to C++ function during pininvoke.

25 May 2017 by CPallini

Quote: [MarshalAs(UnmanagedType.U8)]ulong verb, [MarshalAs(UnmanagedType.U8)]ulong verb2 That should be, instead [MarshalAs(UnmanagedType.U4)] uint verb, [MarshalAs(UnmanagedType.U4)] uint verb2 or, simply: uint verb, uint verb2

Advanced Debugging Tips

8 Feb 2012 by creizlein

I have been facing some issues lately with Pinvoke calls to native functions of advapi32.dll from managed code and i haven't found yet a way to make it work properly, facing multiple problems related to the classic "A call to ... has unbalanced the stack" and "attempt to read/write protected...

Disk Read/Write Bytes using API code

24 Apr 2014 by creizlein

I'm trying to get a per disk ( or per partition ) usage report, aka read/write bytesi know i can use performance counters for this, or even WMI, but i would like to achieve this same result by using native WinAPI with p/invokedoes anyone can point me to the right functions or libraries to...

F# Versus Mathematics: Part One - Getting Started with BLAS and LAPACK

24 Mar 2011 by Dan Buskirk

Accessing Industry-Standard Linear Algebra Libraries from .NET Code

Fast String Searching Using C++ STL Vectors in C#

18 Aug 2012 by Dan Randolph

C# interop using platform invoke and C++ vectors to implement fast searching and selection on index keys

A fatal error in a P/Invoke .dll call crashes my C# application, can I avoid this?

4 Nov 2015 by DanielBrownAU

One way which comes to mind (and it may not be best practice tho)... may be to wrap the P/Invoke calls in a try/catch/finally block to handle with any exceptions generated by the calls.Furthermore, any access/calls to the libraries could be placed into its own central class and error...

Auto Click Button on HTML Popup Window

11 Feb 2013 by Dave Elliott

This article provides a practical solution to clicking the button on a popup window.

web_development

Advanced Debugging Tips

8 Feb 2012 by Dave Kreskowiak

The biggest culprit of "A call to ... has unbalanced the stack" is you declared a type as Long instead of Integer. This is very common if you used a Declare you found on the internet and it belongs to VB6 code.A Long in VB6 is a 32-bit signed integer. A Long in VB.NET is a 64-bit signed...

Pinvoke a VB6 function from C#.Net 2010

28 Jan 2013 by Dave Kreskowiak

First, if you've got the VB6 code calling this .DLL, why are you calling the VB6 code from C#?? Just bypass the VB6 code and go straight to the .DLL!Second, You can't call a VB6 function that returns Variant. There is no equivilent type in .NET. You have to declare the actual type being...

WM_SETFONT not working

15 Feb 2013 by Dave Kreskowiak

WM_SETFONT is NOT for setting the applications font selection. It is only for changing the font a window is rendered with, such as the text editor window inside Notepad. The problem is Notepad maintains it's own font settings and objects, as does every other application in the world, which...

Where to use 'out', 'ref', or nothing when passing attributes to Unmanaged DLL

24 Nov 2009 by DaveyM69

If I understand what you've posted correctly, the first parameter is the pointer to a byte array that is created in memory by the API. If this is the case then passing a value to it (by using ref or nothing) will probably not suceed - you may need an out there. The problem with this is you will need

Where to use 'out', 'ref', or nothing when passing attributes to Unmanaged DLL

25 Nov 2009 by DaveyM69

Have you tried using an IntPtr for the first parameter but without the out? [DllImport("FlyCAMm1_AV.dll")]private static extern bool Capture_A_Frame( IntPtr pretBuff, out int pdSize);IntPtr pretBuff = IntPtr.Zero;int pdSize;bool result = Capture_A_Frame(pretBuff, out pdSize);

Where to use 'out', 'ref', or nothing when passing attributes to Unmanaged DLL

26 Nov 2009 by DaveyM69

In that case it is asking for the pointer to an existing byte array and it's size, not creating one as was implied by the [Out] in the documentation.So, what you need it seems is to create a byte array, get it's pointer and pass that along with it's size. The function declaration will be:[Dl

How do I allocate gt 2GB buffer for PInvoke

6 Feb 2015 by DelphiCoder

Is there a function on the Win32 DLL to save this data to a file? If so, then you could save the file to a temporary location, then use a .NET Reader or even memory map the file for random access.I wrote a log reader once that quickly read and scrolled through logs greater than 4 Terabytes...

Controlling a Myo Armband with C#

6 Oct 2014 by Dev Leader

Are you excited to get your Myo armband from Thalmic Labs? If you're a C# developer, then check out this open source library to help you control your Myo! The post appeared first on http://www.DevLeader.ca.

Getwindowtext function returns null always

12 Aug 2018 by Dilan Shaminda

I am using Win32 API functions to register the current program in the Clipboard chain. Below function retrieves the window handle of the current owner of the clipboard. The problem is GetCaptionOfWindow always return null. [DllImport("user32.dll")] public static extern IntPtr...

P/Invoke, Passing a structure of char* pointers to unmanged function.

22 Aug 2012 by dsandru1

I have a DLL that I have imported using P/Invoke and I am trying to pass a structure of character pointers to. DataIn will be filled with an array of hex bytes, and DataOut will be filled during the AssembleSecurityPacket(). I am having trouble getting the dll to fill the output array, DataOut....

P/Invoke, Passing a structure of char* pointers to unmanged function.

24 Aug 2012 by dsandru1

I figured out how to do this.I changed my struct to look like this: [StructLayout(LayoutKind.Sequential)]public class sSecurityLayer{ public byte Header_no; public byte Code; [MarshalAs(UnmanagedType.LPStr)] public string DataIn; public int DataInLen; ...

Second value not getting passed to C++ function during pininvoke.

25 May 2017 by DSomesh

I have a c++ function which I am calling from c# using pinInvoke. Following is my cpp method- int test(DWORD verb,DWORD verb2 ) { return verb2 *100; } My function is exposed as - extern "C" { __declspec(dllexport) int test(DWORD verb, DWORD verb2); } Following is my c# code where I am...

PInvoke C function that return pointer

31 May 2012 by Duc Huy Nguyen

Hi,I have a C function like this:double* foo() // function return array of 10 double{double* matrix = (double *)malloc(10 * sizeof(double));return matrix;}how can I write in the wrapper class? Should I do that?[DllImport("...")][return:...

Marshaling an array inside a Struct with methods using C# P/Invoke

31 May 2012 by Duc Huy Nguyen

Hi there,I wrote in C a struct like thatstruct IMAGE { unsigned int x, y; unsigned char **data;};Could anybody please tell me how to marshall this struct to use in C#?my solution does not work.[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]public...

ILMerge [dll_portable]

1 Jul 2010 by emicroxxx

Transforming ILMerge.exe to DLL [for convenient usage only]

calling DeviceIoControl to move file cluster

21 Nov 2014 by eRRaTuM

hi,DeviceIoControl(volumehan...

How to pass a ref struct in delegate from WPF application to C++ DLL

22 Feb 2021 by Fazi_13

I am currently using delegate from c# to C++ dll i am passing the ref struct to get the value of struct from c++ dll,with out using call back i can able to get the struct value using marshalling.but for dynamic purpose i am using Delegate...

Is it possible in pinvoke to pass the intptr from C# and get the address of struct in C++ DLL

22 Feb 2021 by Fazi_13

Hai, in my application i am using Pinvoke method from c# wpf to C++ dll.i created the same structure in c# which was in c++ dll and i am calling the method with ref of my struct from c# and then there is no problem.for some dynamic purpose i am...

How to find an element through lists of list

25 Feb 2021 by Fazi_13

class Node { string Name; List NodeList=new List(); } Here is my list,so each an every node contains list and name i need to iterate through all the lists to find out match my condition on any of the lists What I have tried: I...

How to convert the intptr value to struct in C#

6 Jun 2021 by Fazil13

I'm trying to do an interop to a C# structure from C++. The structure c# public static IntPtr tempNode = IntPtr.Zero; and also i am using Marshal.PtrToStructure, Marshal.PtrToStringAuto as per requirement. now i am trying with 64bit compiled...

How to access the same DLL with multiple thread in C#

16 Aug 2021 by Fazil13

I am Developing wpf application,in my application i used creates a number of thread to access a same c++ dll for specific operation i dont know how to do it? What I have tried: for refernce i used for loop for(int i= 0; i

Pinvoke a VB6 function from C#.Net 2010

28 Jan 2013 by Fiona.fj

I want to PInvoke a function written in VB6 from C#. The VB6 code that calls the DLL is declared like this:Declare Function ApplyNNet Lib " location of the DLL file" (MyNNetType As String, MyAddress As String, MyInput() As Double) As VariantMy C# version looks like...

Explicit/Implicit P/Invoke concept

24 Nov 2014 by George Jonsson

Platform Invoke is used to call Win32 functions from managed code.See PInvoke.net/[^]For calling managed code from unmanaged code one approach is to use COM Interop where COM interfaces are exported from the managed code.See COM Interop Part 2[^]So yes, you are right in your assumptions.

How to use win32 readfile in C# using dllimport to read from serial port

19 Jul 2021 by Greggo

I have written C++ code that is able to read from and write to a com port using the Win32 API method ReadFile. The code is for the purpose of sending HPGL instructions to a legacy graphics plotter and retrieving status data from it. I have...

How can I import C++ DLL function using p/invoke into C#?

3 Oct 2016 by Gregory Haberek

The library you're calling is using cdecl calling convention, but the default for C# is winapi, a.k.a. stdcall. Change your DllImport call to look like this instead:[DllImport("mydll.dll"), CallingConvention=CallingConvention.Cdecl)]extern static bool GetFolderSize(string...

on LINUX , work with MONO & openGL/C++ & X11/C++ & P/Invoke

30 Nov 2012 by gxsheng

Hi ,guys, I am making a program on LINUX , with MONO as GUI and OpenGL/X11/C++ as renderer . The connection between them is P/Invoke. Worrying about effeciency , I decide not to use CSharp wrapper of OpenGL directly.So the structure is like this : ...

P/Invoke Jujitsu: Passing Variable Length Structs

4 Jul 2020 by honey the codewitch

How to marshal structs that the .NET marshaller just can't handle without a lot of help

P/Invoke Jujitsu: A Data Kata

11 Jul 2020 by honey the codewitch

Exploit the memory layout of your data to make your P/Invoke code more accessible and maintainable

Understanding Windows Message Queues for the C# Developer

22 Jul 2020 by honey the codewitch

Diving into some of the core plumbing behind the Windows operating system

Filio - Distributed File Management

11 Aug 2010 by Huisheng Chen

Distributed File Management

C# P/Invoke Marshal string only 4-bytes on 64-bit Windows

17 Aug 2013 by Ian A Davidson

Hi all,I've been running the static Code Analysis Tool (aka FxCop) on some code I've "inherited", in order to try to improve it. One of the warnings it gives me is as follows (my emphasis added):CA1901: Microsoft.Portability: As it is declared in your code, parameter 'PathName' of...

Asynchronous I/O with Thread.BindHandle

7 Jan 2013 by Jason Curl

Describes the usage of Asynchronous I/O with I/O Completion ports with .NET

Set window OnTop in running programs from C#

3 Jul 2014 by Jhone Mitnick

You can set running programs to ontop of window stack (application float above other windows).

Problem while pinvoke setupdigetclassimageindex

13 Jul 2018 by Jochen Arndt

Call GetLastError() when the function fails. The error code might help finding out what is wrong. I guess it is invalid parameter here. Note that all parameters of the API function are pointers. So it should be probably (not tested): [DllImport("Setupapi.dll", SetLastError = true, CharSet =...

How to p/invoke *.framework with mono C# on mac osx

6 Feb 2014 by Johannes Bildstein

I've been trying to P/Invoke a *.framework file on a mac with C# but always get a DllNotFoundException.I tried to follow this guide but no luck.The .framwork file is in a subfolder right beside the application.The config file looks like this:

How to p/invoke *.framework with mono C# on mac osx

28 May 2015 by Johannes Bildstein

The best and recommended way is to use this:[DllImport("@executable_path/../Frameworks/EDSDK.framework/EDSDK")]The framework files should be in the Frameworks folder and with the DllImport attribute you use standard C# and not some Mono xml-config.ok I found the problem. There are three...

How to convert a C char[][] in C#

23 Jan 2015 by KarstenK

Take a look on my article and code Calling All Stations. It handles the stuff converting C++ and C# strings and function calling between the runtimes.

Asking for a huge favour from the open source community !

22 Sep 2019 by KarstenK

Writing a C# interface isnt to hard. Take a look at my article handling C# interop. Use the Visual Studio Community Edition. Because of the complexity of your library it is best when you write it yourself. The chances that someone will help you are very low.

Interop between C++/CLI and VB6

25 Jul 2012 by kash_sheetansh

Hi! I converted a VB6 project using VS2010 and got an Interop DLL along with the Project. Now i wish to call the certain methods from the DLL. I tried generating the .tlb file using TlbImp so to use the same in RCW but cant, i get an error stating: not a valid type library. I tried to...

Errors while using Pinvoke

28 Aug 2012 by kash_sheetansh

#using

P/Invoke and DLL static variables

24 Apr 2012 by kkhippytch

Hi!I have an unmanaged DLL (written in C++) and going to call it from the managed code through the P/Invoke.DLL implements a sort of "gateway" to the stock trading server and is written so that at first we should establish a connection to the required trading server (host, port, login,...

Using 3rd party dll with PInvoke

30 Sep 2011 by koleraba

Hi everybodyI have a 3rd party dll, which I want to use in my app(.net framework, c#4.0). Dll is used to control IR learner hardware component. Below is the header file for the dll. extern "C" {/******************** CALLBACKS **********************///Callback called when the status...

PInvokeStackUnbalance was detected

12 Dec 2011 by koleraba

HiI am trying to use a third party native dll. in my .net application. I am using c#. The function in native dll. has the following declaration:void _stdcall pir_learnCCF( const char * serial, unsigned char state );With the PInvoke Interop assistant I get the following...

Visual Studio installer: Canceling an installation with PInvoke

31 Jan 2012 by koleraba

I am creating a setup(installer) file with Visual studio installer project. I created a custom installer class that extends a System.Configuration.Install.Installer class. I overided the Install method, and basically what I do is start an external exe. This exe file is a custom application...

Invoking "Run" Dialog from In-Browser Silverlight 5 Application

12 Sep 2011 by Kunal Chowdhury «IN»

How to open the "Run Dialog" directly from the Silverlight 5 application

P/Invoke, Passing a structure of char* pointers to unmanged function.

22 Aug 2012 by Kuthuparakkal

few ideas will get you started: char* : string PrefIn ="mypref"; unsafe { IntPtr ptrPrefIn = Marshal.StringToHGlobalAnsi(PrefIn); char* _ptrPrefIn = (char*)ptrPrefIn.ToPointer(); } Structure:object _oStruct ; // some...

Why is my GetMenuItemInfo call not working?

9 Jun 2013 by Kuthuparakkal

You need to initialize dwTypeData and cch data members...List ls = new List();IntPtr hMenu = Win32.GetMenu(hWnd); if (hMenu.ToInt32() != 0) { char[] szString = new char[256]; for (int i = Win32.GetMenuItemCount(hMenu); i >= 0; i--) {...

Need Help with Pinvoke in vb.net

28 May 2013 by ledtech3

Updated:I have been trying now for some time to find a way to list the owner, groups, and DACl of a system service.The built in SC.exe utility will return the DACL but not the Owner or groups.After digging thru the Object browser for some time it appears that there is no straight forward...

PInvoke C function that return pointer

31 May 2012 by lewax00

[DllImport(".....

Errors while using Pinvoke

28 Aug 2012 by lewax00

The first set of errors (maybe all of them) should be solved fairly easily: . is not used for namespaces in C++/CLI, :: is, so...

Program blows up after unmanaged callback is called

1 Jun 2018 by lewisv

I have an c dll that I need to call from my c# application. I have it communicating with the dll, but I am having issues with callbacks. The c looks like this. typedef void (CDECLCALL_CONV *ConnectedCB) (DPHandle hdl); typedef struct { unsigned int size; // sizeof(DPcbs) ConnectedCB...

DeviceType using SetupDiGetDeviceRegistryPropert in VB.net

23 Jan 2012 by Lucas Santos Sanches

Hi all.I've got a problem while working with SetupApi calls.I need to retrieve a device type from a device.The I used to get it: _ Public Shared Function SetupDiGetDeviceRegistryProperty( _ ByVal DeviceInfoSet...

DeviceType using SetupDiGetDeviceRegistryPropert in VB.net

23 Jan 2012 by Lucas Santos Sanches

OKI found other way to do it.Actually, I was not trying to know a "devicetype" but I want to know if it is removable.I use DeviceIoControl and IOCTL_STORAGE_GET_HOTPLUG_INFO.Thanks.

C++ translate to VB flow

12 Dec 2013 by Luiey Ichigo

Hi coders,I'm facing a problem here. I'm not C++ person. I do VB.Net. I got a .h and .cpp file. Some of the code is successfully translate but there is 1 thing from the code that I can't understand. Can someone who experience the C and VB.NEt to see this. Below are my code:From...

Getting Currently Playing Song in Windows Media Player 12

22 Jan 2014 by Lumír Kojecký

This tip shows a simple way to obtain information about currently playing song in Windows Media Player 12 in C# language.

Retrieve a window handle whitin outlook

14 Aug 2014 by LuOPa

Hi allI'm working on a custom outlook addin where I need to subclass the appointment window. This works basically pretty well following the principles mentioned in the following ariticle: http://www.codeproject.com/Articles/27262/Additional-custom-panel-in-Microsoft-OutlookI'm...

How to find an element through lists of list

25 Feb 2021 by Maciej Los

You need recursion. See: c# - Find node when traversing tree - Stack Overflow[^]

Print pdf from windows service and keep working after logoff

28 Jan 2018 by manojmaks

I am creating a windows service that will print pdf in time interval. What I have tried: I have done some research on this and found a class public class ProcessStarter : IDisposable { #region Import Section private static uint STANDARD_RIGHTS_REQUIRED = 0x000F0000; private...

Windows-service

17 Apr 2014 by Martin Solovey

Simple API to Register/Listen for HotKey in .NET applications

C# Get Global Keyboard Stroke?

17 Dec 2014 by MasterCodeon

Hello Everyone again!i had an idea to minimize or close my app when i press a key combo(like CTRL+E or something). Now i know how to minimize and close the app, i can do that either using the win api using the DestroyWindow method or the CloseWindow(this is to minimize the app) methodi also...

How do I allocate gt 2GB buffer for PInvoke

6 Feb 2015 by Matt T Heffron

From a C# application, how can I allocate (and free) a huge (>2GB) buffer from unmanaged memory (since I can't allocate a managed buffer >2GB) that I can pass via PInvoke to a C++ dll and then access it within the C# after the dll has filled it.The function signature of the C++ dll function...

Pure .NET DirectShow Filters in C#

13 Oct 2012 by Maxim Kartavenkov

Article describes how to make DirectShow Filters in .NET, it consist of BaseClasses and couple of samples

Writing DirectShow Demultiplexors in C#. Part 2 - AVI File Source example

13 Oct 2012 by Maxim Kartavenkov

Article describes basic tasks for implementing your own File Source DirectShow filters.

How to save printer properties/preferences in C#.Net (pinvoke example)

10 Jan 2013 by Maxim Kartavenkov

Hello,You can use Marshal class and it methods PtrToStructure and StructureToPtr to convert your pDevMode IntPtr. The Unicode version of the structure DEVMODE will be:[StructLayout(LayoutKind.Explicit,CharSet=CharSet.Unicode)]public struct DEVMODEW{ ...