# \#dotnet **URL:** https://clarionhub.com/tag/dotnet/38.md [Latest](https://clarionhub.com/latest.md) · [Categories](https://clarionhub.com/categories.md) · [Tags](https://clarionhub.com/tags.md) --- ## [Make class wrapped DotNet dll optional](https://clarionhub.com/t/make-class-wrapped-dotnet-dll-optional/9314)
**Author:** [@ThaDaSoft](https://clarionhub.com/u/ThaDaSoft)\ **Replies:** 1\ **Last updated:** [August 21, 2026, 11:04am UTC](https://clarionhub.com/t/make-class-wrapped-dotnet-dll-optional/9314 "2026-08-21T11:04:57Z")
I am currently creating many integrations between Clarion 11 and DotNet dlls using NativeAoT - now for a specific integration I want to make it optional, so only enable it when the DLL is present in the application’s dir… --- ## [Help with .net product wrapper for Clarion](https://clarionhub.com/t/help-with-net-product-wrapper-for-clarion/8076)
**Author:** [@Bostjan\_Laba](https://clarionhub.com/u/Bostjan_Laba)\ **Replies:** 4\ **Last updated:** [January 18, 2026, 9:19pm UTC](https://clarionhub.com/t/help-with-net-product-wrapper-for-clarion/8076 "2026-01-18T21:19:22Z")
Hi guys, I’d like to ask if someone is willing to check the .net example and code for tightvnc sdk. Here is the link: Trial package I would like to know if based on this package it’s possible to create a wrapper so I … --- ## [.NET Managed DLL passing and receiving information](https://clarionhub.com/t/net-managed-dll-passing-and-receiving-information/8467)
**Author:** [@Bjarne\_Havnen](https://clarionhub.com/u/Bjarne_Havnen)\ **Replies:** 4\ **Last updated:** [August 12, 2025, 9:48am UTC](https://clarionhub.com/t/net-managed-dll-passing-and-receiving-information/8467 "2025-08-12T09:48:02Z")
Thought I share a tip when passing information to and from .NET assemblies. I am giving up getting full support for unicode characters in my e-mails and am looking into sending my e-mails from .NET instead. I have alwa… --- ## [Memory leak while calling .net method](https://clarionhub.com/t/memory-leak-while-calling-net-method/8409)
**Author:** [@raghu](https://clarionhub.com/u/raghu)\ **Replies:** 34\ **Last updated:** [July 26, 2025, 6:53pm UTC](https://clarionhub.com/t/memory-leak-while-calling-net-method/8409 "2025-07-26T18:53:03Z")
Hello everyone, I got memory leak issue when I call .net method from clarion application. I have used libmaker to convert .net DLL to lib file and used in clarion project. I am passing BSTRING parameters to the .net me… --- ## [How can one run the app with specific environment variables?](https://clarionhub.com/t/how-can-one-run-the-app-with-specific-environment-variables/8332)
**Author:** [@ThaDaSoft](https://clarionhub.com/u/ThaDaSoft)\ **Replies:** 7\ **Last updated:** [July 2, 2025, 9:03pm UTC](https://clarionhub.com/t/how-can-one-run-the-app-with-specific-environment-variables/8332 "2025-07-02T21:03:26Z")
In one of my projects I am calling into a DotNet DLL - which uses System.Net.Http - which allows setting a HTTP PROXY using an env called https\_proxy - how can I set this ENV for my Clarion APP so my DLL get's it too? I… --- ## [What is the minimum .Net Framework I should have installed](https://clarionhub.com/t/what-is-the-minimum-net-framework-i-should-have-installed/8158)
**Author:** [@sgower](https://clarionhub.com/u/sgower)\ **Replies:** 3\ **Last updated:** [May 13, 2025, 7:45pm UTC](https://clarionhub.com/t/what-is-the-minimum-net-framework-i-should-have-installed/8158 "2025-05-13T19:45:35Z")
What is the minimum .Net Framework I should have installed for my clarion app generated with Clarion 11.1.13845. I use both Noyantis Add ons as well as Capesoft add ons. --- ## [Crash when using GROUP with BSTRING from \`.inc\`](https://clarionhub.com/t/crash-when-using-group-with-bstring-from-inc/7996)
**Author:** [@ThaDaSoft](https://clarionhub.com/u/ThaDaSoft)\ **Replies:** 3\ **Last updated:** [March 14, 2025, 7:47am UTC](https://clarionhub.com/t/crash-when-using-group-with-bstring-from-inc/7996 "2025-03-14T07:47:25Z")
I am trying to setup an interop between Clarion and NativeAoT Compiled DotNet project - but for some reason I am getting a nasty GPF by only declaring a variable based on a type from my INC I am using BSTRING as I am wa… --- ## [Call .NET 8.0 DLL from Clarion 10 application](https://clarionhub.com/t/call-net-8-0-dll-from-clarion-10-application/6974)
**Author:** [@Brandon](https://clarionhub.com/u/Brandon)\ **Replies:** 32\ **Last updated:** [December 24, 2024, 12:15pm UTC](https://clarionhub.com/t/call-net-8-0-dll-from-clarion-10-application/6974 "2024-12-24T12:15:47Z")
Hello, I have been using a .NET Framework DLL in our Clarion application for many years without issues. We were recently forced to upgrade our library to .NET 8.0 due to a dependency update. Since the update, the Clario… --- ## [Clarion.NET usage](https://clarionhub.com/t/clarion-net-usage/7776)
**Author:** [@Daniel1](https://clarionhub.com/u/Daniel1)\ **Replies:** 3\ **Last updated:** [December 24, 2024, 12:02pm UTC](https://clarionhub.com/t/clarion-net-usage/7776 "2024-12-24T12:02:53Z")
Hello all I need to create some Autocad plugin and I started c# project for that purpose but then I remembered I have ClarionNet\_EE version 2.0.215.9353 Does somebody know - is it possible to use Clarion code inside Cl… --- ## [Clarion 11.0.13401 crash in Windows 11 23H2 / Net.Framework 4.0](https://clarionhub.com/t/clarion-11-0-13401-crash-in-windows-11-23h2-net-framework-4-0/7305)
**Author:** [@Bostjan\_Laba](https://clarionhub.com/u/Bostjan_Laba)\ **Replies:** 5\ **Last updated:** [August 6, 2024, 10:12am UTC](https://clarionhub.com/t/clarion-11-0-13401-crash-in-windows-11-23h2-net-framework-4-0/7305 "2024-08-06T10:12:47Z")
I've had a few problems with running Clarion 11.0 recently, started like a month ago. First there were some "xml" errors (reading scheme) on Clarion startup but after that it started crashing on me way too much. I'm on … --- ## [Decrypt with clarion](https://clarionhub.com/t/decrypt-with-clarion/7362)
**Author:** [@Omar\_Squiabro](https://clarionhub.com/u/Omar_Squiabro)\ **Replies:** 8\ **Last updated:** [August 4, 2024, 10:53pm UTC](https://clarionhub.com/t/decrypt-with-clarion/7362 "2024-08-04T22:53:19Z")
Is it possible to decrypt a value with Clarion, perhaps with Cryptonite, from an Encrypt in C#? I have a source code in C# with a password. I have tried it with Cryptonite but without result. i know the value of one fie… --- ## [Calling into a Clarion 8/11 program/library from Dotnet 8](https://clarionhub.com/t/calling-into-a-clarion-8-11-program-library-from-dotnet-8/7110)
**Author:** [@ThaDaSoft](https://clarionhub.com/u/ThaDaSoft)\ **Replies:** 2\ **Last updated:** [July 17, 2024, 1:17pm UTC](https://clarionhub.com/t/calling-into-a-clarion-8-11-program-library-from-dotnet-8/7110 "2024-07-17T13:17:49Z")
I am actually trying to do the inverse of what’s being asked here Call .NET 8.0 DLL from Clarion 10 application I already got the part fro Clarion to DotNet 8 working - but now I am looking for a way to get data out of … --- ## [From xlsx invoice with merge tokens to invoice. Help in .net to work with Clarion Maybe Donald Ridley](https://clarionhub.com/t/from-xlsx-invoice-with-merge-tokens-to-invoice-help-in-net-to-work-with-clarion-maybe-donald-ridley/7115)
**Author:** [@Dirk1](https://clarionhub.com/u/Dirk1)\ **Replies:** 7\ **Last updated:** [May 1, 2024, 6:14pm UTC](https://clarionhub.com/t/from-xlsx-invoice-with-merge-tokens-to-invoice-help-in-net-to-work-with-clarion-maybe-donald-ridley/7115 "2024-05-01T18:14:29Z")
Hi All, I have an almost perfect free .net app that can change an xlsx template with merge tokens to an invoice xlsx, Given some data (from a database) See: WindowsFormsApplication2 app I would like to change the Wi… --- ## [WPF (Xaml) in WinForms in Clarion](https://clarionhub.com/t/wpf-xaml-in-winforms-in-clarion/7123)
**Author:** [@donridley](https://clarionhub.com/u/donridley)\ **Replies:** 1\ **Last updated:** [April 25, 2024, 5:39am UTC](https://clarionhub.com/t/wpf-xaml-in-winforms-in-clarion/7123 "2024-04-25T05:39:13Z")
I was curious if this was possible... --- ## [.NET Audio Control for Clarion - Added CLASS,Template,and Installer](https://clarionhub.com/t/net-audio-control-for-clarion-added-class-template-and-installer/7098)
**Author:** [@donridley](https://clarionhub.com/u/donridley)\ **Replies:** 0\ **Last updated:** [April 12, 2024, 10:36pm UTC](https://clarionhub.com/t/net-audio-control-for-clarion-added-class-template-and-installer/7098 "2024-04-12T22:36:14Z")
Added a CLASS to make calling OLE methods easier. Added a Template. Added an installer for Clarion version 6-11.1 (Cannot guarantee the OLE will work on older versions of Clarion) --- ## [.NET Color Picker with Template, Installer, and C10 example app](https://clarionhub.com/t/net-color-picker-with-template-installer-and-c10-example-app/6893)
**Author:** [@donridley](https://clarionhub.com/u/donridley)\ **Replies:** 0\ **Last updated:** [January 4, 2024, 5:38pm UTC](https://clarionhub.com/t/net-color-picker-with-template-installer-and-c10-example-app/6893 "2024-01-04T17:38:43Z")
Feel free to use as you wish. 20240106 Added legacy support to template. --- ## [.NET RegFree ColorPicker for Clarion](https://clarionhub.com/t/net-regfree-colorpicker-for-clarion/6887)
**Author:** [@donridley](https://clarionhub.com/u/donridley)\ **Replies:** 0\ **Last updated:** [January 2, 2024, 4:47pm UTC](https://clarionhub.com/t/net-regfree-colorpicker-for-clarion/6887 "2024-01-02T16:47:37Z")
Example app made with C10. Enjoy! --- ## [Unable to pass string parameters to Clarion Dll from C#](https://clarionhub.com/t/unable-to-pass-string-parameters-to-clarion-dll-from-c/4430)
**Author:** [@LeoDalcegio](https://clarionhub.com/u/LeoDalcegio)\ **Replies:** 14\ **Last updated:** [May 26, 2023, 11:40am UTC](https://clarionhub.com/t/unable-to-pass-string-parameters-to-clarion-dll-from-c/4430 "2023-05-26T11:40:02Z")
I have a Clarion Dll and I need to call a procedure inside of it from C# (I have access to both of the codes). It works perfectlly if I don\`t try to pass any paramters to the procedure. This is the actual Clarion code,… --- ## [Clarion 11 call C# dll will show Exception screen](https://clarionhub.com/t/clarion-11-call-c-dll-will-show-exception-screen/6157)
**Author:** [@skyong38](https://clarionhub.com/u/skyong38)\ **Replies:** 19\ **Last updated:** [April 25, 2023, 6:46am UTC](https://clarionhub.com/t/clarion-11-call-c-dll-will-show-exception-screen/6157 "2023-04-25T06:46:29Z")
I am using Clarion 11 to call C# dll, once invoke C# function, it will appear Exception Screen. Any idea of this issue? I use MGLibMkr.exe to generate lib. Thank you. Regards, Nelson --- ## [How Connect a C# DLL to C9 ABC](https://clarionhub.com/t/how-connect-a-c-dll-to-c9-abc/6105)
**Author:** [@ThalesSilveirs](https://clarionhub.com/u/ThalesSilveirs)\ **Replies:** 1\ **Last updated:** [March 30, 2023, 9:02pm UTC](https://clarionhub.com/t/how-connect-a-c-dll-to-c9-abc/6105 "2023-03-30T21:02:49Z")
Have a tip for connect C9 with C# DLL? Absolutely this... --- ## [App does not open on some machines using C# DLL](https://clarionhub.com/t/app-does-not-open-on-some-machines-using-c-dll/6028)
**Author:** [@Vinicius\_Souza](https://clarionhub.com/u/Vinicius_Souza)\ **Replies:** 4\ **Last updated:** [March 9, 2023, 2:13pm UTC](https://clarionhub.com/t/app-does-not-open-on-some-machines-using-c-dll/6028 "2023-03-09T14:13:12Z")
Good morning, using this resource https://clarionmag.jira.com/wiki/spaces/clarion/pages/400219/Clarion+and+C+.NET+Interop+without+COM?focusedCommentId=402206, I was able to create DLLs made in C# to use in Clarion. Test… --- ## [Using .net DLL, error find .dll path](https://clarionhub.com/t/using-net-dll-error-find-dll-path/5999)
**Author:** [@Vinicius\_Souza](https://clarionhub.com/u/Vinicius_Souza)\ **Replies:** 2\ **Last updated:** [February 28, 2023, 12:44pm UTC](https://clarionhub.com/t/using-net-dll-error-find-dll-path/5999 "2023-02-28T12:44:12Z")
Good afternoon, I'm following this tutorial, but when I run the program, I get an error not finding the .DLL file. https://clarionmag.jira.com/wiki/spaces/clarion/pages/400219/Clarion+and+C+.NET+Interop+without+COM?foc… --- ## [Mg LibMaker bug, also in Carl Barnes LibMakerPlus](https://clarionhub.com/t/mg-libmaker-bug-also-in-carl-barnes-libmakerplus/4753)
**Author:** [@Bostjan\_Laba](https://clarionhub.com/u/Bostjan_Laba)\ **Replies:** 4\ **Last updated:** [January 18, 2023, 6:30am UTC](https://clarionhub.com/t/mg-libmaker-bug-also-in-carl-barnes-libmakerplus/4753 "2023-01-18T06:30:12Z")
In the program code() - FileAdded routine of the MgLibMakerMinus by Carl Barnes 2020.9.6 this is the code: IF INSTRING(‘.LIB’, UPPER(FileName), 1, 1) ReadLib() ELSE ReadExecutable() END This is a problem if the fil… --- ## [Little job - integrate VNC viewer into CW](https://clarionhub.com/t/little-job-integrate-vnc-viewer-into-cw/5726)
**Author:** [@Bostjan\_Laba](https://clarionhub.com/u/Bostjan_Laba)\ **Replies:** 9\ **Last updated:** [December 16, 2022, 11:28pm UTC](https://clarionhub.com/t/little-job-integrate-vnc-viewer-into-cw/5726 "2022-12-16T23:28:03Z")
Guys, who's up for a job? I would have Mike do it, but payment to Russia are not possible... Attached is the sdk. It's a VNC viewer sdk (.net, c++, wpf). I need this viewer inside CW. If you build examples.sln (with Vi… --- ## [Referencing External C# DLL in Clarion - DLL path default to root of C](https://clarionhub.com/t/referencing-external-c-dll-in-clarion-dll-path-default-to-root-of-c/5567)
**Author:** [@GerhardZeelie](https://clarionhub.com/u/GerhardZeelie)\ **Replies:** 5\ **Last updated:** [October 27, 2022, 3:48pm UTC](https://clarionhub.com/t/referencing-external-c-dll-in-clarion-dll-path-default-to-root-of-c/5567 "2022-10-27T15:48:51Z")
I have successfully implimented an C# dll where I call functions from. This is working. But the issue is that no matter what I try, Clarion insists that the external dll must be in the root of C. How can I get Clarion t… --- ## [Clarion to .NET (WinForms) Example Application](https://clarionhub.com/t/clarion-to-net-winforms-example-application/5543)
**Author:** [@donridley](https://clarionhub.com/u/donridley)\ **Replies:** 1\ **Last updated:** [October 25, 2022, 1:16am UTC](https://clarionhub.com/t/clarion-to-net-winforms-example-application/5543 "2022-10-25T01:16:27Z")
Here's an example of calling Clarion procedures from a .NET application. Special thanks to Carl Barnes. Enjoy! --- ## [Exposing Clarion DLL to .NET](https://clarionhub.com/t/exposing-clarion-dll-to-net/5540)
**Author:** [@donridley](https://clarionhub.com/u/donridley)\ **Replies:** 3\ **Last updated:** [October 21, 2022, 8:35am UTC](https://clarionhub.com/t/exposing-clarion-dll-to-net/5540 "2022-10-21T08:35:21Z")
Hello All, For years now I have been calling .NET methods from Clarion with relative ease. However, the thought just occurred to me; What about the other way around? How would one expose a Clarion DLL to a .NET/C# app… --- ## [Converting a C# code into Clarion Code](https://clarionhub.com/t/converting-a-c-code-into-clarion-code/5195)
**Author:** [@xxetfxx](https://clarionhub.com/u/xxetfxx)\ **Replies:** 0\ **Last updated:** [June 12, 2022, 1:51pm UTC](https://clarionhub.com/t/converting-a-c-code-into-clarion-code/5195 "2022-06-12T13:51:14Z")
Hi Guys, Out of curiousity, I have found this video -\>https://www.youtube.com/watch?v=N5oZnV3cA64 On the 5:43 part of the video, I tried searching how to convert the c# code of dragging the form with the use of regio… --- ## [Microsoft’s Xaml Islands used in a Clarion app. This allows “modern” UWP Windows controls to be used in a Win32 app](https://clarionhub.com/t/microsoft-s-xaml-islands-used-in-a-clarion-app-this-allows-modern-uwp-windows-controls-to-be-used-in-a-win32-app/4676)
**Author:** [@DD66](https://clarionhub.com/u/DD66)\ **Replies:** 5\ **Last updated:** [April 16, 2022, 10:31pm UTC](https://clarionhub.com/t/microsoft-s-xaml-islands-used-in-a-clarion-app-this-allows-modern-uwp-windows-controls-to-be-used-in-a-win32-app/4676 "2022-04-16T22:31:04Z")
Don said : 'Dries Dreason demonstrated that Microsoft’s Xaml Islands can be used in a Clarion app. This allows “modern” UWP Windows controls to be used in a Win32 app.And speaking of Win32, which is Clarion’s playground,… --- ## [Clarion calling C# DLL](https://clarionhub.com/t/clarion-calling-c-dll/4757)
**Author:** [@Bostjan\_Laba](https://clarionhub.com/u/Bostjan_Laba)\ **Replies:** 5\ **Last updated:** [January 5, 2022, 3:46pm UTC](https://clarionhub.com/t/clarion-calling-c-dll/4757 "2022-01-05T15:46:54Z")
I have a C# source compiled as DLL. Now this dll occasionally does some downloading, long story short, it can respond to clarion call in a second or in 10 seconds. When it's a second, my app works fine, when it should be… [Next page](https://clarionhub.com/tag/dotnet/38.md?match_all_tags=true&page=1&tags%5B%5D=dotnet)