vefxio + eamio subscreen for iidx 12-24

Installation

• download the dll-artifacts.zip from the latest commit artifact
• extract it (backend.dll, vefxio.dll, eamio.dll)
• place backend.dll, vefxio.dll, eamio.dll in the same folder as your gamestart-XX.bat
• for styles that ship with bm2dx.dll edit gamestart-XX.bat as shown below

inject iidxhook2.dll backend.dll bm2dx.exe

• otherwise change it to

inject -K iidxhook5.dll -K backend.dll bm2dx.dll

BIO2 IIDXIO + subscreen

The artifact also includes iidxio-bio2-vefx.dll, an optional adapter for BIO2 setups. It loads the original Bemanitools BIO2 IIDXIO as a child DLL, then routes the VEFX functions through this project's vefxio.dll:

• iidx_io_set_loggers, iidx_io_init, and iidx_io_fini initialize and shut down both the BIO2 child and vefxio.dll.
• iidx_io_ep2_recv lets vefx_io_recv update the normal IIDX pad word after the BIO2 child polls hardware.
• iidx_io_ep2_get_slider reads sliders from vefxio.dll.
• iidx_io_ep3_write_16seg writes ticker text to vefxio.dll.

To use it, place backend.dll, vefxio.dll, iidxio-bio2-vefx.dll, and the stock Bemanitools BIO2 IIDXIO DLL in the game directory. Rename the stock BIO2 DLL to iidxio-bio2-child.dll, then copy or rename iidxio-bio2-vefx.dll to the iidxio.dll filename expected by your IIDX hook. If you want a different child DLL path, set IIDX_SUBSCREEN_IIDXIO_CHILD before launch.

Features

• Ticker
• keypads
• effector sliders
• spice2x CardIO reader support
• spcie2x card json support
• concentration mode

todo

• replay recording and uploading using official XRPC apis
• scene-awareness

Credits

Radioo/aic_key_eamio - for the initial aic CardIO implementation and general help with netcode and CI

aixxe/omnifix - for the memory / module management code and general help regarding hooking

dmadison/LED-Segment-ASCII - for base subscreen font (modified by me to match beatmania)

changelog

• (master)
  • fixed spice2x card paths
• v0.2.0 (27.07.2025)
  • fixed alpha in some textures as they got saved without it
  • rewrote resource+texture management
  • added attributions to their respective authors
  • Added auto-disable of windows touch accessibility visual feedback
  • Added concentration mode
• v0.1.0 (26.07.2025)
  • initial release
  • keypads, ticker, CardIO driver, effector