クリック範囲、タッチ範囲、ダブルクリックの猶予時間について
ダブルクリック範囲
System.Windows.Forms.SystemInformation.DoubleClickSize
https://referencesource.microsoft.com/#System.Windows.Forms/winforms/Managed/System/WinForms/SystemInformation.cs
タッチ範囲は System.Windows.Input.StylusLogic をリフレクションで取得すること
ただし.Net4.6以降じゃないと記述が足りないので.Net4.6のソースからコピーしましょう
https://referencesource.microsoft.com/#PresentationCore/Core/CSharp/System/Windows/Input/Stylus/StylusLogic.cs
[追記]
StylusLogic.csは.Net4.7のReferenceSourceで公開されていません。
// 謎
DoubleTapDelta
DoubleTapDeltaTime
// タッチ
touchDoubleTapDelta
touchDoubleTapDeltaTime
// ペン
stylusDoubleTapDelta
stylusDoubleTapDeltaTime
/// <summary> /// .net 4.5 だと ラッパー では足りないため、コピーした /// TouchModeN_DtapDist、TouchModeN_DtapTimeがない /// </summary> public class StylusLogic { public static StylusLogic Current = new StylusLogic(); public StylusLogic() { ReadSystemConfig(); } #region DoubleTapDelta /// <summary> /// ダブルタップの有効範囲を取得します /// </summary> public int DoubleTapDelta { get { //if( _DoubleTapDelta == -1 ) { // _DoubleTapDelta = (int)stylusLogicType.InvokeMember( "DoubleTapDelta", BindingFlags.GetProperty | BindingFlags.Instance | BindingFlags.NonPublic, null, stylusLogic, null ); //} return _DoubleTapDelta; } } int _DoubleTapDelta = -1; #endregion #region DoubleTapDeltaTime /// <summary> /// ダブルタップの有効速度を取得します /// </summary> public int DoubleTapDeltaTime { get { return _DoubleTapDeltaTime; } } int _DoubleTapDeltaTime = -1; #endregion #region touchDoubleTapDelta /// <summary> /// タッチでのダブルタップの有効範囲を取得します /// </summary> public int touchDoubleTapDelta { get { return _touchDoubleTapDelta; } } int _touchDoubleTapDelta = 45; #endregion #region touchDoubleTapDeltaTime /// <summary> /// タッチでのダブルタップの有効速度を取得します /// </summary> public int touchDoubleTapDeltaTime { get { return _touchDoubleTapDeltaTime; } } int _touchDoubleTapDeltaTime = 300; #endregion #region stylusDoubleTapDelta /// <summary> /// スタイラスでのダブルタップの有効範囲を取得します /// </summary> public int stylusDoubleTapDelta { get { return _stylusDoubleTapDelta; } } int _stylusDoubleTapDelta = 15; #endregion #region stylusDoubleTapDeltaTime /// <summary> /// スタイラスでのダブルタップの有効速度を取得します /// </summary> public int stylusDoubleTapDeltaTime { get { return _stylusDoubleTapDeltaTime; } } int _stylusDoubleTapDeltaTime = 800; #endregion private const double DoubleTapMinFactor = 0.7; // 70% of the default threshold. private const double DoubleTapMaxFactor = 1.3; // 130% of the default threshold. private int _cancelDelta = 10; /// <summary> /// Grab the defualts from the registry for the double tap thresholds. /// </summary> ///<SecurityNote> /// Critical - Asserts read registry permission... /// - TreatAsSafe boundry is the constructor /// - called by constructor ///</SecurityNote> [SecurityCritical] private void ReadSystemConfig() { object obj; RegistryKey stylusKey = null; // This object has finalizer to close the key. RegistryKey touchKey = null; // This object has finalizer to close the key. // Acquire permissions to read the one key we care about from the registry new RegistryPermission( RegistryPermissionAccess.Read, "HKEY_CURRENT_USER\\Software\\Microsoft\\Wisp" ).Assert(); // BlessedAssert try { stylusKey = Registry.CurrentUser.OpenSubKey( "Software\\Microsoft\\Wisp\\Pen\\SysEventParameters" ); if( stylusKey != null ) { obj = stylusKey.GetValue( "DblDist" ); _stylusDoubleTapDelta = ( obj == null ) ? _stylusDoubleTapDelta : (Int32)obj; // The default double tap distance is 15 pixels (value is given in pixels) obj = stylusKey.GetValue( "DblTime" ); _stylusDoubleTapDeltaTime = ( obj == null ) ? _stylusDoubleTapDeltaTime : (Int32)obj; // The default double tap timeout is 800ms obj = stylusKey.GetValue( "Cancel" ); _cancelDelta = ( obj == null ) ? _cancelDelta : (Int32)obj; // The default move delta is 40 (4mm) } touchKey = Registry.CurrentUser.OpenSubKey( "Software\\Microsoft\\Wisp\\Touch" ); if( touchKey != null ) { obj = touchKey.GetValue( "TouchModeN_DtapDist" ); // min = 70%; max = 130%, these values are taken from //depot/winblue_gdr/drivers/tablet/platform/pen/inteng/core/TapsParameterizer.cpp _touchDoubleTapDelta = ( obj == null ) ? _touchDoubleTapDelta : FitToCplCurve( _touchDoubleTapDelta * DoubleTapMinFactor, _touchDoubleTapDelta, _touchDoubleTapDelta * DoubleTapMaxFactor, (Int32)obj ); obj = touchKey.GetValue( "TouchModeN_DtapTime" ); _touchDoubleTapDeltaTime = ( obj == null ) ? _touchDoubleTapDeltaTime : FitToCplCurve( _touchDoubleTapDeltaTime * DoubleTapMinFactor, _touchDoubleTapDeltaTime, _touchDoubleTapDeltaTime * DoubleTapMaxFactor, (Int32)obj ); } } finally { RegistryPermission.RevertAssert(); if( stylusKey != null ) { stylusKey.Close(); } if( touchKey != null ) { touchKey.Close(); } } } /// <summary> /// Fit to control panel controlled curve. 0 matches min, 50 - default, 100 - max /// (the curve is 2 straight line segments connecting the 3 points) /// </summary> private int FitToCplCurve( double vMin, double vMid, double vMax, int value ) { if( value < 0 ) { return (int)vMin; } if( value > 100 ) { return (int)vMax; } double f = (double)value / 100.0; double v = Math.Round( f <= 0.5 ? vMin + 2.0 * f * ( vMid - vMin ) : vMid + 2.0 * ( f - 0.5 ) * ( vMax - vMid ) ); return (int)v; } }
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