Korg Forums

Sharp · Posted: Thu Aug 29, 2013 7:12 pm Post subject: I'm looking for a Programmer.

Hi guys.
I need someone to write a Midi 2 Keystrokes application to run on Windows.

From an end users point of view, I only need the end user to be able to select their midi input device and a channel.

From my side, I need a back end developers area where if I press a button on a midi controller, the app shows me the midi message received, and I then I need to be able to tell the application that when it sees the specific midi message, that it is to press certain keystrokes I need to freely assign.

I will need Key Press, Hold and release with a delay setting between them, and I may need to assign upwards of 4 keystrokes to a each midi message I need to target.

If that's something you think you can help with, I'd love to talk to you.

Regards
Sharp

BobTheDog · Platinum Member Joined: 21 May 2007 Posts: 1535

Have you looked at things like Bome midi translator?

Sharp · Posted: Thu Aug 29, 2013 10:43 pm Post subject:

BobTheDog · Platinum Member Joined: 21 May 2007 Posts: 1535

Ok I understand now.

Is the midi to keystroke stuff is just going to be used to send key commands to your sheet music app or to any app?

Sharp · Posted: Fri Aug 30, 2013 11:20 am Post subject:

Daz · Retired Joined: 01 Jan 2002 Posts: 10829

I might be able to help Sharpy Very Happy

OpAmp · Posted: Fri Aug 30, 2013 9:29 pm Post subject:

Hi,

Did you have a look at the RtMidi library? http://www.music.mcgill.ca/~gary/rtmidi/
I've used it before for personal use.

I have some pieces of code here and there. With that I have a proof of concept (rather hardcoded):
* a windows terminal app
* asks to select your midi in port (just a list and you type the number)
* prints the received midi messages for that midi port
* when sliding the modwheel from down to all the way up: sends a Ctrl+Right event to the application with the main focus.

So, using the modwheel, the cursor is jumping fine to the next word in a texteditor, even in this 'post reply' box Razz

I've some experience with Windows GUI programming as well.

Just a bit worried about:
* the hold time -> at first sight, this must be done by repeating the keystroke
* how flexible, extended, good looking must this backend be? A full GUI or some script or ...?
* the licence of the RtMidi library. My knowledge on english legal terminology is not really sufficient to grasp the fine details and whether that would fit your requirements.

Bye.
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Sharp · Posted: Fri Aug 30, 2013 9:29 pm Post subject:

Sharp · Posted: Fri Aug 30, 2013 10:04 pm Post subject:

Hi OpAmp
No, I haven't seen that before. It looks rather complicated, involving, but certainly complete and detailed. I'm afraid I wouldn't have the know how or tools to take that and create what I need. The Licence seems to throw a complete spanner in the works though. It seems that anything created with it has to be shared with all the other developers, and they can sell any modifications that were made.

I was looking at Auto Hot Key. There's code posted on their forums that does convert midi to keystrokes, and there are the tools to compile that code once it's customised the way I need it. But I'm not sure what the legal issues would be in using code taken from a discussion forum, compiled and sold along side my program. I'll certainly never make it rich from what I'm doing, but I'd like to at least sleep at night knowing there's no possible issues that could bit me in the rear end.

Regards
Sharp

Daz · Retired Joined: 01 Jan 2002 Posts: 10829

Happy to help if I can, maybe alongside OpAmp. Hopefully I remember some of this stuff.

My favourite OpAmp was the LM741 Smile

OpAmp · Posted: Sat Aug 31, 2013 8:48 am Post subject:

About the licence. I tought already so, but it was not 100% clear to me.

Anyway, I had a look at the WinApi for MIDI. It is not too difficult.
Just modified my proof of concept this morning. For processing simple midi in messages, I don't need the RtMidi library anymore.
By the way, there is no need of an external library for sending keystrokes neither.
_________________
microKORGXL, Kaossilator Pro, monotribe, SQ-1, volca fm, Kross 88 BK
Alesis SR18, Akai Miniak, Fender Strat, Line 6 Spider II 112, Zoom MS-50G

Sharp · Posted: Mon Sep 02, 2013 1:38 am Post subject:

Sound great.

I've been at this all weekend, so I will most certainly get to compile the program tomorrow. Err... well it's 2:30 am here, so it's tomorrow already. So it will be the evening. Kids are back in school tomorrow so I have the house all to myself.

Regards
Sharp

OpAmp · Posted: Mon Sep 02, 2013 9:23 pm Post subject:

Good! How did it end up? Bye.
_________________
microKORGXL, Kaossilator Pro, monotribe, SQ-1, volca fm, Kross 88 BK
Alesis SR18, Akai Miniak, Fender Strat, Line 6 Spider II 112, Zoom MS-50G

Sharp · Posted: Mon Sep 02, 2013 10:13 pm Post subject:

It's not finished, but it's most certainly at a level where I can compile it and send you a link for testing. Everything you will see works. I'm just adding some additional minor function at this stage.

I think there's one more day of actual development left on my side and then I move onto writing the manual and keeping my fingers cross something could happen on the midi 2 keystrokes side of things.

If I had that missing piece, I could then compile the final version. I'd like to pack the midi 2 keystrokes inside my installation file so that when everything installs, midi 2 keystrokes would be in a sub folder of my app, and I can build in a system that launches it when my program launches.

Anyway.... give me a few minutes and I will compile it at it stands right now.

Regards
Sharp.

Sharp · Posted: Mon Sep 02, 2013 10:50 pm Post subject:

PM send.

Daz, I tried to send it to you as a PM also and it won't go. If you have time, can I email the info to you ?
Regards
Sharp.