/// <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 void Window_Closed(object sender, EventArgs e)
{
MessageTouchDeviceHelper.Remove(this);
}