/// <summary>
/// 触摸消息转WPF事件
/// 此方案只支持Touch,没有Stylus事件。同时Touch与Mouse事件被独立开了。--此方案有缺陷，但能勉强使用。TODO 模拟Stylus事件触发
/// </summary>
/// <param name="window"></param>
/// <param name="input"></param>
private static void FakeTouchInputToWindow(Window window, TouchNativeMethods.TOUCHINPUT input)
{
// 相对的是没有处理 DPI 的屏幕坐标
// 因为是 物理屏幕坐标的像素的百分之一表示，需要除 100 计算像素
var screenLocation = new Point(input.X / 100.0, input.Y / 100.0);
var wpfLocation = TransformToWpfPoint(screenLocation, window);
var sizeInScreen = new Size(input.CxContact / 100.0, input.CyContact / 100.0);
var wpfSize = TransformToWpfSize(sizeInScreen, window);
//获取触摸设备信息
var device = MessageTouchDeviceHelper.GetDevice(window, input.DwID);
if (!device.IsActive && input.DwFlags.HasFlag(TouchNativeMethods.TOUCHEVENTF.TOUCHEVENTF_DOWN))
{
device.Position = wpfLocation;
device.Size = wpfSize;
device.Down();
}
else if (device.IsActive && input.DwFlags.HasFlag(TouchNativeMethods.TOUCHEVENTF.TOUCHEVENTF_MOVE))
{
device.Position = wpfLocation;
device.Size = wpfSize;
device.Move();
}
else if (device.IsActive && input.DwFlags.HasFlag(TouchNativeMethods.TOUCHEVENTF.TOUCHEVENTF_UP))
{
device.Position = wpfLocation;
device.Size = wpfSize;
device.Up();
MessageTouchDeviceHelper.Remove(device);
}
}
private static void FakeTouchInpuToPenContext1(Window window, TouchNativeMethods.TOUCHINPUT input, int inputCount)
{
//InputManager.Current.PostProcessInput InputManager.Current
//var postProcessInputEvent = typeof(InputManager).GetEvent("_postProcessInput", BindingFlags.NonPublic | BindingFlags.Instance).GetRaiseMethod(true); ;
//var privateInputEventArgsProperty = typeof(InputManager).GetField("_processInputEventArgs", BindingFlags.NonPublic | BindingFlags.Instance);
//var inputEventArgs = privateInputEventArgsProperty.GetValue(InputManager.Current) as ProcessInputEventArgs;
//if (inputEventArgs == null)
//{
// inputEventArgs = Activator.CreateInstance(typeof(ProcessInputEventArgs)) as ProcessInputEventArgs;
// privateInputEventArgsProperty.SetValue(InputManager.Current, inputEventArgs);
//}
//postProcessInputEvent.Invoke(InputManager.Current, new object[1]{ inputEventArgs });
}
/// <summary>
/// 模拟触摸输入（PenContext）
/// 因触摸数据无法转换、会多余一份Mouse事件。此方案废弃
/// </summary>
/// <param name="window"></param>
/// <param name="input"></param>
/// <param name="inputCount"></param>
private static void FakeTouchInputToPenContext0(Window window, TouchNativeMethods.TOUCHINPUT input, int inputCount)
{
Assembly wpfAssembly = typeof(TabletDevice).Assembly;
var wispLogicType = wpfAssembly.GetType("System.Windows.Input.StylusWisp.WispLogic");
var wispLogicConstructorInfos = wispLogicType.GetConstructors(BindingFlags.NonPublic | BindingFlags.CreateInstance | BindingFlags.Instance);
var wispLogicConstructorInfo = wispLogicConstructorInfos[0];
var wispLogic = wispLogicConstructorInfo.Invoke(new object[] { InputManager.Current });
var penContextsConstructorInfo = wpfAssembly.GetTypes().Where(i => i.FullName.Contains("PenContexts")).ToList()[0].
GetConstructors(BindingFlags.NonPublic | BindingFlags.CreateInstance | BindingFlags.Instance).First();
var penContextsInstance = penContextsConstructorInfo.Invoke(new object[2] {
wispLogic, PresentationSource.FromVisual(window)
});
var penContextsValue = penContextsInstance.GetType().GetField("_contexts", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContextsInstance) as object[];
if (penContextsValue == null || penContextsValue.Length == 0)
{
penContextsInstance.GetType().GetMethod("Enable", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(penContextsInstance, null);
penContextsValue = penContextsInstance.GetType().GetField("_contexts", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContextsInstance) as object[];
}
if (penContextsValue == null || penContextsValue.Length == 0)
{
//uint index = 1;
//penContextsInstance.GetType().GetMethod("AddContext", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(penContextsInstance, new object[1] { index });
//penContextsValue = penContextsInstance.GetType().GetField("_contexts", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContextsInstance) as object[];
//以上无法添加
}
object penContext = null;
if (penContextsValue != null && penContextsValue.Length > 0)
{
penContext = penContextsValue[0];
_lastPenContext = penContext;
}
else
{
if (_lastPenContext == null)
{
return;
}
penContext = _lastPenContext;
}
var tabletDeviceId = (int)penContext.GetType().GetProperty("TabletDeviceId", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContext);
//可能因触摸数据没有转换，此处调用但是WPF层好像无效
penContextsValue.GetType().GetMethod("OnPenDown", BindingFlags.NonPublic | BindingFlags.Instance)?.Invoke(penContextsValue, new object[5] {
penContext, tabletDeviceId, input.DwID, new int[3], input.DwTime
}); //并且input输入无法转换
}
/// <summary>
/// 处理窗口消息
/// </summary>
/// <param name="window"></param>
/// <param name="msg"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <param name="handled"></param>
private static void HandleWindowProc(Window window, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (msg == TouchNativeMethods.WM_TOUCH)
{
var inputCount = wParam.ToInt32() & 0xffff;
var inputs = new TouchNativeMethods.TOUCHINPUT[inputCount];
if (TouchNativeMethods.GetTouchInputInfo(lParam, inputCount, inputs, TouchNativeMethods.TouchInputSize))
{
for (int i = 0; i < inputCount; i++)
{
var input = inputs[i];
//FakeTouchInputToPenContext0(window, input, inputCount);
//FakeTouchInputToPenContext1(window, input, inputCount);
FakeTouchInputToWindow(window, input);
}
}
TouchNativeMethods.CloseTouchInputHandle(lParam);
handled = true;
}
}
/// <summary>
/// 待完成
/// </summary>
/// <param name="window"></param>
/// <param name="input"></param>
/// <param name="inputCount"></param>
private static void FakeTouchInputToPenContext1(Window window, TouchNativeMethods.TOUCHINPUT input, int inputCount)
{
var stylusLogicType = typeof(TabletDevice).Assembly.GetType("System.Windows.Input.StylusLogic");
var stylusLogic = stylusLogicType.GetProperty("CurrentStylusLogic", BindingFlags.NonPublic | BindingFlags.Static).GetValue(null, null);
if (stylusLogic.GetType().FullName.Contains("WispLogic"))
{
var wispLogic = stylusLogic;
//var wispTabletList = wispLogic.GetType().GetProperty("CurrentStylusDevice", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(wispLogic);
if (!registeredPresentationSources.Contains(PresentationSource.FromVisual(window)))
{
//先注销
wispLogic.GetType().GetMethod("UnRegisterHwndForInput", BindingFlags.NonPublic | BindingFlags.Instance)
.Invoke(wispLogic, new object[1] {
(HwndSource)PresentationSource.FromVisual(window)
});
//初始化PenContext等
//只能注册一次
wispLogic.GetType().GetMethod("RegisterHwndForInput", BindingFlags.NonPublic | BindingFlags.Instance)
.Invoke(wispLogic, new object[2] {
InputManager.Current, PresentationSource.FromVisual(window)
});
registeredPresentationSources.Add(PresentationSource.FromVisual(window));
}
var penContextsObject = wispLogic.GetType().GetMethod("GetPenContextsFromHwnd", BindingFlags.NonPublic | BindingFlags.Instance)
.Invoke(wispLogic, new[] { PresentationSource.FromVisual(window) });
var penContextsValue = penContextsObject.GetType().GetField("_contexts", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContextsObject) as object[];
if (penContextsValue == null || penContextsValue.Length == 0)
{
penContextsObject.GetType().GetMethod("Enable", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(penContextsObject, null);
penContextsValue = penContextsObject.GetType().GetField("_contexts", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContextsObject) as object[];
}
if (penContextsValue == null || penContextsValue.Length == 0)
{
//uint index = 1;
//penContextsInstance.GetType().GetMethod("AddContext", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(penContextsInstance, new object[1] { index });
//penContextsValue = penContextsInstance.GetType().GetField("_contexts", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContextsInstance) as object[];
//以上无法添加
}
object penContext = null;
if (penContextsValue != null && penContextsValue.Length > 0)
{
penContext = penContextsValue[0];
_lastPenContext = penContext;
}
else
{
if (_lastPenContext == null)
{
return;
}
penContext = _lastPenContext;
}
var tabletDeviceId = (int)penContext.GetType().GetProperty("TabletDeviceId", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(penContext);
//因触摸数据无法转换，此处调用但是WPF层好像无效
penContextsValue.GetType().GetMethod("OnPenDown", BindingFlags.NonPublic | BindingFlags.Instance)?.Invoke(penContextsValue, new object[5] {
penContext, tabletDeviceId, input.DwID, new int[3], input.DwTime
}); //并且input输入无法转换
}
}
