# Problems embedding ruby in win32 **URL:** \ **Category:** ruby-talk\ **Created:** [13 April 2003 14:17 UTC](https://rubytalk.org/t/problems-embedding-ruby-in-win32/5622 "2003-04-13T14:17:29Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Gaffer](https://avatars.discourse-cdn.com/v4/letter/g/9dc877/32.png) [@Gaffer](https://rubytalk.org/u/Gaffer)\ **Post date:** [13 April 2003 14:17 UTC](https://rubytalk.org/t/problems-embedding-ruby-in-win32/5622/1 "2003-04-13T14:17:29Z")
hello there, i’m attempting to embed ruby into a win32 application i’m developing, linking statically to the latest ruby 1.8.0 preview release works fine… however, when i try to link dynamically, i get this error on the first time i call rb\_define\_class: Embedded: wrong argument type Fixnum (expected Class) (TypeError) Embedded: [BUG] Segmentation fault ruby 1.8.0 (2003-03-03) [i386-mswin32] here is the offending line: ``` KeyClass = rb_define_class("Key", rb_cObject); ``` it looks to me like this error indicates my headers are out of date with what the DLL is expecting somehow (corrupt rb\_cObject?)… is there anything i need do, define some symbol or something, to get the dynamically linked ruby dll working correctly? does anybody know what could be causing this error? cheers all note: i am using vc++ 7.0, latest ruby 1.8.0 preview 2 release > **···** > > -----Original Message----- > From: [ruby-talk-admin@ruby-lang.org](mailto:ruby-talk-admin@ruby-lang.org) > [[mailto:ruby-talk-admin@ruby-lang.org](mailto:ruby-talk-admin@ruby-lang.org)] > Sent: Sunday, April 13, 2003 11:54 PM > To: [gaffer@gaffer.org](mailto:gaffer@gaffer.org) > Subject: Welcome to our (ruby-talk ML) You are added automatically > > Caution: If you reply this mail, the recipient is mailing list! > post articles [ruby-talk@ruby-lang.org](mailto:ruby-talk@ruby-lang.org) > commands [ruby-talk-ctl@ruby-lang.org](mailto:ruby-talk-ctl@ruby-lang.org) > maintainer [ruby-talk-admin@ruby-lang.org](mailto:ruby-talk-admin@ruby-lang.org) > > Welcome to our mailing list [ruby-talk@ruby-lang.org](mailto:ruby-talk@ruby-lang.org) ! > > This mail contains the fundamental usage of the mailing list server. > > 1 How to use this server > > Plaese send commands in the mail body not subject to the address > [ruby-talk-ctl@ruby-lang.org](mailto:ruby-talk-ctl@ruby-lang.org). > > The command syntax is as follows: > > ``` > # help > help > > # help > > ``` > > or > help > > Please send the “# help” to the address [ruby-talk-ctl@ruby-lang.org](mailto:ruby-talk-ctl@ruby-lang.org) for > help and > server functions overview > > ``` > # help > > ``` > > to get general information on this list > > ``` > # guide > > ``` > > If you want to make a contact with the mailing list maintainer, please > e-mail to > > ``` > ruby-talk-admin@ruby-lang.org > > ``` > > ML server exists to decrease routine works by maintainers. Please try > to use server functions as could as possible. > > ``` > ruby-talk@ruby-lang.org Maintainer > ruby-talk-admin@ruby-lang.org > > ``` ---
**Author:** ![ts1](https://avatars.discourse-cdn.com/v4/letter/t/a8b319/32.png) [@ts1](https://rubytalk.org/u/ts1)\ **Post date:** [13 April 2003 14:29 UTC](https://rubytalk.org/t/problems-embedding-ruby-in-win32/5622/2 "2003-04-13T14:29:44Z")
> Embedded: wrong argument type Fixnum (expected Class) (TypeError) > Embedded: [BUG] Segmentation fault > ruby 1.8.0 (2003-03-03) [i386-mswin32] When you compile define "IMPORT" and "NT=1" (something like -DIMPORT and -DNT=1) Guy Decoux ---
**Author:** ![Simon\_Strandgaard](https://avatars.discourse-cdn.com/v4/letter/s/e47774/32.png) [@Simon\_Strandgaard](https://rubytalk.org/u/Simon_Strandgaard)\ **Post date:** [13 April 2003 15:14 UTC](https://rubytalk.org/t/problems-embedding-ruby-in-win32/5622/3 "2003-04-13T15:14:31Z")
Perhaps we should add such compile-issues to > **[WebMD - Better information. Better health.](https://www.webmd.com/?EmbedRuby)** > > The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award-winning expertise in content, community services, expert... Im not a windows person. I there anyone around who can add it ? > **···** > > On Mon, 14 Apr 2003 00:29:44 +0900, ts wrote: > > > > Embedded: wrong argument type Fixnum (expected Class) (TypeError) > > > Embedded: [BUG] Segmentation fault > > > ruby 1.8.0 (2003-03-03) [i386-mswin32] > > > > When you compile define “IMPORT” and “NT=1” (something like -DIMPORT and > > -DNT=1) > > – > Simon Strandgaard ---
**Author:** ![Gaffer](https://avatars.discourse-cdn.com/v4/letter/g/9dc877/32.png) [@Gaffer](https://rubytalk.org/u/Gaffer)\ **Post date:** [14 April 2003 00:00 UTC](https://rubytalk.org/t/problems-embedding-ruby-in-win32/5622/4 "2003-04-14T00:00:04Z")
adding “#define IMPORT” before including ruby fixed it, thankyou (no need to def NT, its already defined under vc7) cheers > **···** > > -----Original Message----- > From: ts [[mailto:decoux@moulon.inra.fr](mailto:decoux@moulon.inra.fr)] > Sent: Monday, April 14, 2003 12:30 AM > To: ruby-talk ML > Cc: [ruby-talk@ruby-lang.org](mailto:ruby-talk@ruby-lang.org) > Subject: Re: problems embedding ruby in win32 > > > Embedded: wrong argument type Fixnum (expected Class) (TypeError) > > Embedded: [BUG] Segmentation fault > > ruby 1.8.0 (2003-03-03) [i386-mswin32] > > When you compile define “IMPORT” and “NT=1” (something like -DIMPORT and > -DNT=1) > > Guy Decoux