# How install jna in processing

**URL:** <https://discourse.processing.org/t/how-install-jna-in-processing/16825>\
**Category:** Español\
**Created:** [January 3, 2020, 5:24am UTC](https://discourse.processing.org/t/how-install-jna-in-processing/16825 "2020-01-03T05:24:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![molo32](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@molo32](https://discourse.processing.org/u/molo32)\
**Post date:** [January 3, 2020, 5:24am UTC](https://discourse.processing.org/t/how-install-jna-in-processing/16825/1 "2020-01-03T05:24:59Z")

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Try using this code but it doesn’t detect some classes like kernel32.

```auto
import com.sun.jna.*;

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Platform;

final static long baseAddress = 0x10002AFA8L;
final static int[] offsets = new int[]{0x50,0x14};

static Kernel32 kernel32 = (Kernel32) Native.loadLibrary("kernel32",Kernel32.class);
static User32 user32 = (User32) Native.loadLibrary("user32", User32.class);

```

How to correctly install jna in processing

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**Author:** ![kfrajer](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/kfrajer/32/196_2.png) [@kfrajer](https://discourse.processing.org/u/kfrajer)\
**Post date:** [January 3, 2020, 10:45pm UTC](https://discourse.processing.org/t/how-install-jna-in-processing/16825/2 "2020-01-03T22:45:36Z")

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Check this post under the header **Another Alternative: Using the “code” Folder** :

> **[processing/processing](https://github.com/processing/processing/wiki/Library-Overview#another-alternative-using-the-code-folder)**
>
> Source code for the Processing Core and Development Environment (PDE) - processing/processing

Kf

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**Author:** ![jeremydouglass](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/jeremydouglass/32/20_2.png) [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)\
**Post date:** [January 7, 2020, 1:10am UTC](https://discourse.processing.org/t/how-install-jna-in-processing/16825/3 "2020-01-07T01:10:56Z")

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> [@molo32](#):
>
> How to correctly install jna in processing

Did installing jna jar files in the /code sketch folder as per @kfrajer’s suggestion work for you, @molo32?

¿Has intentado instalar los archivos .jar en / code, como sugirió @kfrajer? ¿Eso resolvió tu problema?

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<div class="post-metadata">

**Author:** ![molo32](https://avatars.discourse-cdn.com/v4/letter/m/a87d85/32.png) [@molo32](https://discourse.processing.org/u/molo32)\
**Post date:** [January 8, 2020, 4:14pm UTC](https://discourse.processing.org/t/how-install-jna-in-processing/16825/4 "2020-01-08T16:14:36Z")

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Lo hise funcionar , el problema era que descargaba solo jna.jar sin el plataform.jar , lo unico que habia que hacer es descargar los dos archivos jar(jna.jar y plataform.jar) e importarlos a processing.gracias