Pianoroll for Windows

A flexible, featured pianoroll control with microtunal support, using Direct2D to paint.

Article: https://www.codeproject.com/Articles/4042343/A-flexible-Direct2D-Pianoroll-for-your-music-apps

To use

1. Instantiate PR::PIANOROLL object
2. Pass WM_KEYDOWN, WM_LBUTTONDBLCLK, WM_LBUTTONDOWN, WM_RBUTTONDOWN, WM_MOUSEMOVE,WM_LBUTTONUP, WM_SYSKEYDOWN to the control
3. When you want to paint it, call member "Paint()" passing a Direct2D object and the RECT

Features

• Notes support channel (0-15), velocity (0-127) , layer (unlimited)
• Moving, Resizing with snap controls
• Supports diatonic movement through specified Key and Mode (Major/Minor)
• Unlimited undo/redo
• Unlimited layers
• Piano side (Left/Right)
• Callbacks
• Tools - Auto, Eraser, Single click entry, Quantizer, Paint
• Serialization/Deserialization to XML
• Key per measure
• Tempo per measure
• Time signature per measure
• MIDI export
• Partial MIDI import (in progress)
• Non-note MIDI notes
• Meta events (Raw hex and specific items)
• Aftertouch events
• Pitch shift events
• Note quantization
• Markers
• Long text show
• Chromatic/Diatonic transposes
• Record from MIDI in device
• Event streaming to callback
• Live note viewer
• Part editing mode
• Microtunal support (documentation soon)

Callbacks

Your callbacks are notified when:

• Note is changed or inserted or removed
• Piano note is tapped
• Redraw requested

Keyboard shortcuts

• A : auto tool
• E : eraser tool
• I : single entry tool
• Q : quantize tool
• N : paint tool
• 1,2,3,4 (up row) : Select beat duration for next note
• Shift+1,2,3,4 (up row) : Beat duration 1/8, 1/16, 1/32, 1/64
• < and > : Change selected items velocity
• Ctrl+ < and > : Velocity off/full
• < and > when pitch shift: Up/Down pitch shift (combine with Ctrl/Shift/Alt)
• +/- : Change selected items position diatonically
• Shift +/- : Change selected items position chromatically
• Numpad +/-/* : Zoom in,out,all
• Shift + Arrows up/down : Change channel
• Alt + Arrows up/down : Change layer
• / and \ : Enlarge/reduce notes
• D,H,': Double/Half/+1/2 notes
• Ctrl+Q : Quantize notes
• Ctrl+G : Go to measure
• J : Join notes
• Ctrl+1...6 : Snapping resolution
• Alt+1-9 Numpad : Toggle layers
• 1-9 Numpad : Next layer
• Ctrl+A : Select all
• Ctrl+C : Copy
• Ctrl+T : Diatonic transpose
• Ctrl+Shift+T : Chromatic transpose
• Ctrl+V : Paste to last clicked measure
• Ctrl+Z : Undo
• Ctrl+Y : Redo
• Z : Move left
• X : Move right
• [,] : Next/Prev marker
• Right/Left arrow : move roll
• Del : Delete selected notes
• Ctrl+Home : Scroll to start
• P : Toggle part editing mode
• Alt+P : Select next part
• Shift+P : Selected parts names
• Tab : Go next note or part
• Shift + Tab : Go prev note or part

Mouse

• Dblclick : insert note (auto tool)
• Control + Dblclick : insert non note event
• Control + Shift + Dblclick : insert aftertouch
• Dblclick on note : remove note
• Click on note : select/unselect (quantize in quantize tool)
• Drag outside note: select (insert in single entry tool, delete in eraser tool, quantize in quantize tool)
• Drag/Resize note

Part editing

In part editing, selections of parts affect all part notes (for example, copy/paste/delete) The J command combines parts