TOPIC:

Hope there is someone reading this,

i would like a working example or even documentation on the winmidiengine.

Hope someone is listening

Someone's listening for sure

Well, I can't say, that I've brought to you what you've asked, but still...
Do you know about "Ultra Star Deluxe"? Source is available at the sourceforge: sourceforge.net/projects/ultrastardx/ .

I'm suggesting it as a source for a cross-platform multimedia example, 'cause it uses headers for Windows, Linux and (partially) Mac OS X. Here's the list (do not know wheater full or not): portaudio, BASS, ffmpeg, SDL, libpng, FreeImage, freetype, JEDI-SDL, Lua, midi, pcre, portmixer, projectM, samplerate, SQLite, zlib, fft.

Would this be enough for you to code what you want to?