I have a Studio Logic MIDI music keyboard which I have plugged into my PC via a USB cable. Windows has automatically installed the appropriate driver/s. I am attempting to read the MIDI input from the keyboard as I want to see if I can use a Macro to modify the sound before it goes to the speaker. (Actually I want to try to programmatically mix sine waves like a Hammond Organ does - it may not be possible, but I'd like to give it a try!)
I installed a trial version of Device Monitoring Studio, see https://www.hhdsoftware.com/device-monitoring-studio which enables me to trap the raw data from the keyboard, and I'm able to identify which keys are pressed or released, and also the keyboard sliders' movements and slider positions. For my purposes, that is all I need to extract from the MIDI stream. I then went on the Web to see if I could find examples of Macro code that would enable my program to emulate what I had been able to do with Device Monitoring Studio. It turns out that USB coding is very complex and the only examples I could find were in C, C++ or Visual Basic, none of which I have, or have ever worked with. I then had a look at LibreOffice 5.3 SDK API. I believe that is the API that Base uses, and over several years I have developed a number of databases using macros that make calls to the API. One API service I found was, com.sun.star.io.pipe, which looks as though it might be what I need, but I don't know if it would work with a USB port, and I could not find any macro code examples that might point me in the right direction. So my questions are - 1. Does anyone know if it is possible to read from a USB port using a LibreOffice macro utilising the API? If so can you point me to some example code (preferably in Basic)? 2. Failing that, is there a simple application on the market that can read a USB MIDI stream into a buffer or file? I think Device Monitoring Studio can do that, but it is expensive and has far more features than I'll ever need. Any help in this regard would be much appreciated Thanks, Noel -- Noel Lodge lodg...@gmail.com -- To unsubscribe e-mail to: users+unsubscr...@global.libreoffice.org Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted
