===v2.2.6 2017-6-5
 # Add commond line to add file and set play mode.
   MidiPiano.exe "file1.mid" "file2.mid" /p /x
    /p: play it
    /x: with repeat one
    /v: play one
    /w: play all
    /y: repeat all
    /z: play ramdom

===v2.2.5 2017-4-4
 # Add Space to Play/Pause.
 # Support screen DPI changed.
 # Fixed some defect like record end event.

===v2.2.3 2016-2-5
 # Add Playlist.

===v2.2.2 2015-12-12
 # Add short-cut like F1-F8

===v2.2.1 2014-6-8===
 # Support 88 Keys mode.
 # Easy Keyboard customize.
 # Bugs fix.

===v2.1.7 2012-1-9===
 # Bugs fix.
 # Installation or Green Package.

===v2.1.6 2011-10-4===
 # Many bugs fixed.
 # Support Win7-X64 now.
 # Change GM Patches can be record now.

===v2.1.5 2010-9-5===
 # Rewrite the keyboard core.
 # Color stand for hand customize.
 # Bug Fix.

===v2.1.3 2010-7-5===
 # Bug Fix.

===v2.1.2 2010-6-26===
 # Add Piano Roll form.
 # Can edit MIDI file with Piano Roll form.
 # Fixed some channel, keys issue.

===v2.0.6 2010-5-19===
 # Fixed the record issue.
 # Add check last version function.

~~{v2.0.5 has record issue, v2.0.2 and v2.0.3 has Key issue, deleted}~~

===v2.0.3 2009-9-8===
 # MidiPiano can record midifile with channels selection.

===v2.0.2 2009-7-31===
 # Fixed record issue when use MIDI Deivices.
 # Add Midi-Event display.
 # Midi Player core enhanced.

===v2.0.1 2008-10-5===
 # Simplify main GUI. 
 # Add auto group function. 
 # Enhanced keyboard setting.
 # Change Hands setting.
 # Volume defect fixed. 

===v1.8.5 2007-7-25===
 # Add space-key to pause/play.
 # Speed ratio instead of BMP.
 # Fixed crash when MIDI Devices connected error at playing time.

===v1.83 2006-12-18===
 # GM Patches changes can record now.
 # Application can send message to plugin's WinFrom if it's exists.
 # Fixed MIDIOutput SysExData Error.

===v1.82 2006-10-29===
 # Add "Auto Speed" selection.

===v1.81 2006-07-05===
 # Fixed keyboard group title display issue.
 # Add "Stay On Top" function in application menu.
 # Add plugins support.

===v1.7.2 2006-06-06===
 # Display betterment when Ctrl and Shift key down.
 # Fix keyboard issue when same note key down at one time.
 # Fix customize keyboard issue about note display.
 # Default select all Midi Devices, not first one.

===v1.7 2006-05-29===
 # Add 128 GM Patches selection function. 
 # Add Repeat function, delete Reset function.
 # Fix keyboard error with [Num Lock] close.

===v1.6 2006-04-30===
 # Rewrite Midi File analyse/Midi Input/Output modules, it works better.
 # Support customize keyboard layout now.
 # Support Mouse move on keyboard now.
 # Spilt MidiDrum from self, load it as a external application.

===v1.5 2006-03-24===
 # Add Meter display.
 # Change channel display the volume.
 # Add Midi Drum Rhythm support.
 # Auto select language file.
 # Add help file (Reading?).

===v1.4 2006-03-20===
 # Record support pause.
 # All forms support multi-language.
 # Buttons enabled with Playing/Recording status.

===v1.3 2006-03-17===
 # Change name from PianoEx to MidiPiano.
 # Fixed some defects.

===v1.2 2006-03-14===
 # Add record function.
 # multi-language support.
 # If track = 2, auto assign hands.
 # Shareware now.

===v1.1 2005-12-24===
 # If track = 3, auto assign hands.
 # Save configuration, auto open last midi file.

===v1.0 and before===
 # Add Midi information form.
 # Speed now will changed by track event automatically.
 # Change GUI to English all.
 # Can change playing position directly now.
 # Repacked some components of this application.
 # Add blue, green colors for piano key down.
 # Different color of tracks for Left/Right hand.
 # Support MIDI input device.
 # Auto associated tracks and channels of MIDI file.
 # Auto Stop when file completed.
 # Multi-threading to play file.
 # Add volume adjustor.
 # Fix issue that pause will also make sounds.
 # Fix some sound card open MIDI failed will cause crash.
 # Add red color of piano key down.
 # Add control for channels selection.
 # Add channels display for MIDI.
 # Add control for tracks selection.
 # Fix some issue when MIDI file have no Note OFF event.
 # Add tracks information.
 # Fix MIDI file reward issue.
 # Add Pause function.