# Windows

**URL:** https://iplug2.discourse.group/c/win/7.md

[Latest](https://iplug2.discourse.group/latest.md) · [Categories](https://iplug2.discourse.group/categories.md)

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## [Getting Started: Windows](https://iplug2.discourse.group/t/getting-started-windows/123)

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**Author:** [@olilarkin](https://iplug2.discourse.group/u/olilarkin)\
**Replies:** 6\
**Last updated:** [6 October 2020 22:33 UTC](https://iplug2.discourse.group/t/getting-started-windows/123 "2020-10-06T22:33:26Z")

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Here is a new wiki page describing how to get started on Windows:

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## [About the Windows category](https://iplug2.discourse.group/t/about-the-windows-category/13)

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**Author:** [@olilarkin](https://iplug2.discourse.group/u/olilarkin)\
**Replies:** 0

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Discussions related to developing plug-ins on/for Windows

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## [DPI Scaling with WebView on Windows?](https://iplug2.discourse.group/t/dpi-scaling-with-webview-on-windows/1041)

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**Author:** [@soundshed](https://iplug2.discourse.group/u/soundshed)\
**Replies:** 0\
**Last updated:** [10 January 2026 03:56 UTC](https://iplug2.discourse.group/t/dpi-scaling-with-webview-on-windows/1041 "2026-01-10T03:56:52Z")

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Hi Folks, I wondered if anyone had any tips for handling DPI scaling with WebView on Windows? Currently with 150% scaling in Windows (3840x2160 res display) I have to set my html doc CSS to width:66.7vw to reproduce nor…

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## [New Plugins Scanning Issue in DAW](https://iplug2.discourse.group/t/new-plugins-scanning-issue-in-daw/1031)

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**Author:** [@totallyrandom](https://iplug2.discourse.group/u/totallyrandom)\
**Replies:** 1\
**Last updated:** [7 November 2025 20:23 UTC](https://iplug2.discourse.group/t/new-plugins-scanning-issue-in-daw/1031 "2025-11-07T20:23:10Z")

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I am relatively new to iPlug2, I made some plugins that build and work well but I found one issue, maybe caused by cloning folders/projects and using them as templates: when I finish building a vst3 and I copy it in my C…

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## [2 or more sidechain input buses (3 or more total inputs): tried many things but can't get a second sidechain bus to connect](https://iplug2.discourse.group/t/2-or-more-sidechain-input-buses-3-or-more-total-inputs-tried-many-things-but-cant-get-a-second-sidechain-bus-to-connect/1009)

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**Author:** [@Brundo](https://iplug2.discourse.group/u/Brundo)\
**Replies:** 2\
**Last updated:** [31 May 2025 06:02 UTC](https://iplug2.discourse.group/t/2-or-more-sidechain-input-buses-3-or-more-total-inputs-tried-many-things-but-cant-get-a-second-sidechain-bus-to-connect/1009 "2025-05-31T06:02:49Z")

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Operating system: Windows 10 DAW: Ableton Live 10 Standard plug-in format: vst3 I’m in the process of making a plug-in that will require many input buses. I started with the “IPlugEffect” example and borrowed from the…

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## [Control value text not showing up - for 1 specific user](https://iplug2.discourse.group/t/control-value-text-not-showing-up-for-1-specific-user/1003)

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**Author:** [@RexMartin2](https://iplug2.discourse.group/u/RexMartin2)\
**Replies:** 2\
**Last updated:** [3 May 2025 15:02 UTC](https://iplug2.discourse.group/t/control-value-text-not-showing-up-for-1-specific-user/1003 "2025-05-03T15:02:42Z")

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A user has reported (and sent screenshots) of my plugin running in Wavelab and Ableton on his Win 10 machine where ALL of the control values are missing from the UI. No one else has reported this problem and it works pr…

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## [iPlug2 and Windows ARM64?](https://iplug2.discourse.group/t/iplug2-and-windows-arm64/987)

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**Author:** [@FullBucket](https://iplug2.discourse.group/u/FullBucket)\
**Replies:** 1\
**Last updated:** [24 February 2025 23:09 UTC](https://iplug2.discourse.group/t/iplug2-and-windows-arm64/987 "2025-02-24T23:09:17Z")

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Hi, has anybody successfully compiled an iPlug2 Windows ARM64 project? I’m always getting the infamous LNK1112 module machine type ‘x86’ conflicts with target machine type ‘ARM64’ error… :grimacing: Cheers, Björn

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## [Knobs are not visible on the GUI](https://iplug2.discourse.group/t/knobs-are-not-visible-on-the-gui/918)

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**Author:** [@olawistedt](https://iplug2.discourse.group/u/olawistedt)\
**Replies:** 2\
**Last updated:** [11 June 2024 18:28 UTC](https://iplug2.discourse.group/t/knobs-are-not-visible-on-the-gui/918 "2024-06-11T18:28:34Z")

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One of the users of BassMatrix has reported problems using my plugin in Windows. The knobs are not visible on the GUI neither on the standalone or the VST3, regardless of the VST host used. The user get a black banner …

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## [Missing common files vst3 folder](https://iplug2.discourse.group/t/missing-common-files-vst3-folder/912)

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**Author:** [@ValeGen](https://iplug2.discourse.group/u/ValeGen)\
**Replies:** 0\
**Last updated:** [28 May 2024 09:23 UTC](https://iplug2.discourse.group/t/missing-common-files-vst3-folder/912 "2024-05-28T09:23:50Z")

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Hello everyone, I’m trying to build my iPlug2 VST3(windows) from Mac using Parallels desktop, apparently it builds the standalone and it works but when I try to build the vst3 I just get an error from xcode, apparently i…

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## [Issue when building VST3 for windows](https://iplug2.discourse.group/t/issue-when-building-vst3-for-windows/899)

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**Author:** [@ValeGen](https://iplug2.discourse.group/u/ValeGen)\
**Replies:** 2\
**Last updated:** [2 May 2024 18:04 UTC](https://iplug2.discourse.group/t/issue-when-building-vst3-for-windows/899 "2024-05-02T18:04:38Z")

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|Error|MSB3073|The command CALL \\Mac\\Home\\Documents\\Dev\\ArcaneSounds\\MonolithAmp\\scripts\\postbuild-win.bat .vst3 MonolithAmp x64 1 \\Mac\\Home\\Documents\\Dev\\ArcaneSounds\\MonolithAmp\\build-win\\vst3\\x64\\Debug\\MonolithAmp.vst…

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## [Win32 vst3 are not recognized by hosts](https://iplug2.discourse.group/t/win32-vst3-are-not-recognized-by-hosts/870)

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**Author:** [@tilr](https://iplug2.discourse.group/u/tilr)\
**Replies:** 9\
**Last updated:** [19 April 2024 05:43 UTC](https://iplug2.discourse.group/t/win32-vst3-are-not-recognized-by-hosts/870 "2024-04-19T05:43:48Z")

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Any idea why VST3 32 bit builds are not recognized by host (Reaper or FL studio), trying the demos they build successfully however the same problem, must I compile them using a 32bit VM? The host simply does not detect t…

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## [Ftypes.h incorrectly enables Unicode (on MSVC/others?)](https://iplug2.discourse.group/t/ftypes-h-incorrectly-enables-unicode-on-msvc-others/190)

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**Author:** [@\_gl](https://iplug2.discourse.group/u/_gl)\
**Replies:** 10\
**Last updated:** [28 January 2024 23:24 UTC](https://iplug2.discourse.group/t/ftypes-h-incorrectly-enables-unicode-on-msvc-others/190 "2024-01-28T23:24:31Z")

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There’s an issue with this part in VST3\_SDK\\pluginterfaces\\base\\ftypes.h: //#define UNICODE\_OFF // disable / enable unicode #ifdef UNICODE\_OFF #ifdef UNICODE #undef UNICODE #endif #else #define UNICODE 1 #endif #…

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## [Help! Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/](https://iplug2.discourse.group/t/help-microsoft-visual-c-14-0-or-greater-is-required-get-it-with-microsoft-c-build-tools-https-visualstudio-microsoft-com-visual-cpp-build-tools/848)

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**Author:** [@The\_Chopinist](https://iplug2.discourse.group/u/The_Chopinist)\
**Replies:** 1\
**Last updated:** [22 December 2023 20:00 UTC](https://iplug2.discourse.group/t/help-microsoft-visual-c-14-0-or-greater-is-required-get-it-with-microsoft-c-build-tools-https-visualstudio-microsoft-com-visual-cpp-build-tools/848 "2023-12-22T20:00:58Z")

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Here is the cmd promt ect, \`C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\>pip install matplotlib==3.3.3 Collecting matplotlib==3.3.3 Using cached matplotlib-3.3.3.tar.gz (37.9 MB) Preparing metadata (…

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## [\[build/debug\] Command failed - postbuild-win.bat](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840)

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**Author:** [@nsdp](https://iplug2.discourse.group/u/nsdp)\
**Replies:** 4\
**Last updated:** [2 December 2023 23:51 UTC](https://iplug2.discourse.group/t/build-debug-command-failed-postbuild-win-bat/840 "2023-12-02T23:51:56Z")

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I am getting this error trying to build the midi effect vst3 on windows: Severity Code Description Project File Line Suppression State Error MSB3073 The command "CALL "C:\\Users\\username\\Dev\\iPlug2\\Examples\\MyMidiEffect\\…

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## [Access to reaper-sdk with VST3](https://iplug2.discourse.group/t/access-to-reaper-sdk-with-vst3/832)

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**Author:** [@domejunky](https://iplug2.discourse.group/u/domejunky)\
**Replies:** 7\
**Last updated:** [1 November 2023 20:34 UTC](https://iplug2.discourse.group/t/access-to-reaper-sdk-with-vst3/832 "2023-11-01T20:34:38Z")

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I think I know the answer: I’m developing a VST3 plugin using iPlug2. For my purposes it doesn’t matter if the VST3 is Reaper specific. I’d like to access some function from the reaper-sdk - specifically project markers.…

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## [Need help with IPlugWebUI](https://iplug2.discourse.group/t/need-help-with-iplugwebui/817)

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**Author:** [@pi22by7](https://iplug2.discourse.group/u/pi22by7)\
**Replies:** 1\
**Last updated:** [28 September 2023 05:17 UTC](https://iplug2.discourse.group/t/need-help-with-iplugwebui/817 "2023-09-28T05:17:07Z")

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For the past few weeks, I have been trying to develop an UI for a plugin I’m creating. The process was pretty straightforward, but it only worked when I used a hard-coded path to my .html file (like H:\\test\_plugin\\index.…

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## [Compile LV2 Plugin to Vst under Windows](https://iplug2.discourse.group/t/compile-lv2-plugin-to-vst-under-windows/779)

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**Author:** [@wildersnuth](https://iplug2.discourse.group/u/wildersnuth)\
**Replies:** 4\
**Last updated:** [11 May 2023 07:43 UTC](https://iplug2.discourse.group/t/compile-lv2-plugin-to-vst-under-windows/779 "2023-05-11T07:43:11Z")

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Hey whats up? I am a total newbee to this feld, i got a bit of expierence in Programming and a friend of mine asked if i could help him a bit. he wants one of the LV2 master plugins as a vst plugin, the mdaJX10 to be spe…

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## [Broken Output when using #def SAMPLE\_TYPE\_FLOAT](https://iplug2.discourse.group/t/broken-output-when-using-def-sample-type-float/786)

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**Author:** [@Tarnith](https://iplug2.discourse.group/u/Tarnith)\
**Replies:** 0\
**Last updated:** [4 May 2023 18:02 UTC](https://iplug2.discourse.group/t/broken-output-when-using-def-sample-type-float/786 "2023-05-04T18:02:37Z")

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Getting an odd issue where a very simple sin oscillator runs fine when using the default double mode but when adding the #define SAMPLE\_TYPE\_FLOAT as discussed elsewhere on this forum it instead outputs what sounds like …

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## [No VST Folder, Windows](https://iplug2.discourse.group/t/no-vst-folder-windows/777)

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**Author:** [@wildersnuth](https://iplug2.discourse.group/u/wildersnuth)\
**Replies:** 2\
**Last updated:** [8 April 2023 14:35 UTC](https://iplug2.discourse.group/t/no-vst-folder-windows/777 "2023-04-08T14:35:48Z")

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Hey there, I am a newbie and got some questions. So I installed iPlug2 and Reaper with this 02\_Getting\_started\_windows · iPlug2/iPlug2 Wiki · GitHub documentation. But if I now try to compile the example project I get “T…

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## [Drag file out of plugin](https://iplug2.discourse.group/t/drag-file-out-of-plugin/455)

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**Author:** [@snfk](https://iplug2.discourse.group/u/snfk)\
**Replies:** 3\
**Last updated:** [31 January 2023 19:44 UTC](https://iplug2.discourse.group/t/drag-file-out-of-plugin/455 "2023-01-31T19:44:38Z")

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I would like to be able to drag a file out of my plugin and into the DAW. I’m thinking of something like the feature in Serum when you can drag a rendered sound out of the plugin directly into the DAW. I understand this …

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## [What happens on (second) UIClose](https://iplug2.discourse.group/t/what-happens-on-second-uiclose/755)

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**Author:** [@hannes](https://iplug2.discourse.group/u/hannes)\
**Replies:** 3\
**Last updated:** [30 January 2023 22:35 UTC](https://iplug2.discourse.group/t/what-happens-on-second-uiclose/755 "2023-01-30T22:35:14Z")

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Hi, I ran into a problem concerning my plugin based on IPlugEffect example. It’s rather difficult for me to track the problem down, because I just witnessed it after it may be present since a while. The problem: I debug…

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## [What am i doing wrong?](https://iplug2.discourse.group/t/what-am-i-doing-wrong/750)

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**Author:** [@cecuca](https://iplug2.discourse.group/u/cecuca)\
**Replies:** 1\
**Last updated:** [13 January 2023 18:44 UTC](https://iplug2.discourse.group/t/what-am-i-doing-wrong/750 "2023-01-13T18:44:28Z")

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When building: 1\>C:\\Users\\cecuca\\Dev\\iPlug2\\Examples\\IPlugOSCEditor\\projects\\IPlugOSCEditor-app.vcxproj(408,5): error : This project references NuGet package(s) that are missing on this computer. Use NuGet Package Resto…

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## [VST3 not working in Harrison Mixbus/Mixbus32 - SOLVED](https://iplug2.discourse.group/t/vst3-not-working-in-harrison-mixbus-mixbus32-solved/738)

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**Author:** [@RexMartin2](https://iplug2.discourse.group/u/RexMartin2)\
**Replies:** 3\
**Last updated:** [14 December 2022 15:50 UTC](https://iplug2.discourse.group/t/vst3-not-working-in-harrison-mixbus-mixbus32-solved/738 "2022-12-14T15:50:25Z")

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I just discovered that VST3 versions of my plugins do not work in Harrison Mixbus/Mixbus32. The plugins receive audio but the outputs are copies of the inputs (i.e., it’s perpetually bypassed). I reported this same issu…

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## [Pro Tools - "not valid 64 bit AAX plugin"](https://iplug2.discourse.group/t/pro-tools-not-valid-64-bit-aax-plugin/736)

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**Author:** [@ajl1606](https://iplug2.discourse.group/u/ajl1606)\
**Replies:** 4\
**Last updated:** [8 December 2022 10:22 UTC](https://iplug2.discourse.group/t/pro-tools-not-valid-64-bit-aax-plugin/736 "2022-12-08T10:22:24Z")

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I’ve downloaded the AAX SDK 2.3.2, placed it in the Dependencies folder, changed the Runtime Library options as detailed in the README file, and the example IPlugEffect.aax project compiles successfully. When loading Pro…

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## [Controls not responding in Reaper while music is playing](https://iplug2.discourse.group/t/controls-not-responding-in-reaper-while-music-is-playing/732)

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**Author:** [@RexMartin2](https://iplug2.discourse.group/u/RexMartin2)\
**Replies:** 3\
**Last updated:** [28 November 2022 23:34 UTC](https://iplug2.discourse.group/t/controls-not-responding-in-reaper-while-music-is-playing/732 "2022-11-28T23:34:50Z")

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I have a user reporting that he cannot change my VST plugin’s controls while the audio is playing in Reaper on Win 7/64. He says he has to stop the transport in order to be able to move the controls. I’ve never experie…

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## [UnserializeEditorState vst3 win version is not resizing correctly on ableton](https://iplug2.discourse.group/t/unserializeeditorstate-vst3-win-version-is-not-resizing-correctly-on-ableton/700)

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**Author:** [@Yomy](https://iplug2.discourse.group/u/Yomy)\
**Replies:** 4\
**Last updated:** [5 September 2022 12:10 UTC](https://iplug2.discourse.group/t/unserializeeditorstate-vst3-win-version-is-not-resizing-correctly-on-ableton/700 "2022-09-05T12:10:45Z")

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Hi Everyone, I’m trying to make my plugin resize to its last size when reloading the daw project. I followed the example here Storing and Restoring the plugin editor scaling · GitHub I found that the vst3 win version …

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## [\[ED\] Another way to duplicate IPlug2 projects](https://iplug2.discourse.group/t/ed-another-way-to-duplicate-iplug2-projects/155)

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**Author:** [@vasyan](https://iplug2.discourse.group/u/vasyan)\
**Replies:** 16\
**Last updated:** [30 August 2022 18:24 UTC](https://iplug2.discourse.group/t/ed-another-way-to-duplicate-iplug2-projects/155 "2022-08-30T18:24:38Z")

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To be honest, I don’t like the duplicate.py script, as I’m not a fan of the Python programming language and don’t like console interfaces. I think that in the 21st century, console interfaces are anochronistic, so after …

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## [\[WebView\] How to send Midi messages via SMMFUI() from JS to the processor and play midi notes?](https://iplug2.discourse.group/t/webview-how-to-send-midi-messages-via-smmfui-from-js-to-the-processor-and-play-midi-notes/690)

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**Author:** [@Halloumi](https://iplug2.discourse.group/u/Halloumi)\
**Replies:** 4\
**Last updated:** [28 August 2022 05:02 UTC](https://iplug2.discourse.group/t/webview-how-to-send-midi-messages-via-smmfui-from-js-to-the-processor-and-play-midi-notes/690 "2022-08-28T05:02:01Z")

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I am trying to send midi messages from UI and play them by clicking buttons or something. For now, I made it by calling SAMFUI() multiple times to send on/off, pitch and velocity to the processor. But it could be done …

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## [Best way to cross compile to Mac](https://iplug2.discourse.group/t/best-way-to-cross-compile-to-mac/395)

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**Author:** [@snfk](https://iplug2.discourse.group/u/snfk)\
**Replies:** 16\
**Last updated:** [26 August 2022 18:47 UTC](https://iplug2.discourse.group/t/best-way-to-cross-compile-to-mac/395 "2022-08-26T18:47:12Z")

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Hey everyone, What would be the recommended way to cross compile so I can support Macs? I have a Mac laptop somewhere but it would be a tedious process to get it to compile. Is there a better way where I can do it all o…

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## [Odd resizing issue present across all plugins created with iPlug2](https://iplug2.discourse.group/t/odd-resizing-issue-present-across-all-plugins-created-with-iplug2/664)

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**Author:** [@snfk](https://iplug2.discourse.group/u/snfk)\
**Replies:** 4\
**Last updated:** [18 August 2022 16:47 UTC](https://iplug2.discourse.group/t/odd-resizing-issue-present-across-all-plugins-created-with-iplug2/664 "2022-08-18T16:47:26Z")

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I am using SKIA graphics and the CPU. In FL Studio, the plugin lags and resizes itself upon opening the UI. I am using the same graphics settings as AnalogObsession and I haven’t noticed any issues with his stuff. I know…

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