Add delay when dragging finger across multiple buttons

Include com0com 2.2.2.0 for easy virtual com port installation

TouchPanel.xaml

@@ -11,7 +11,7 @@
     <Border Background="#01000000">
         <StackPanel>
             <Viewbox Stretch="Uniform" Opacity="1">
-                <Canvas Width="502" Height="502">
+                <Canvas x:Name="TouchCanvas" Width="502" Height="502">
                     <Border HorizontalAlignment="Left" VerticalAlignment="Center"
                         Height="30" Background="White" MouseLeftButtonDown="DragBar_MouseLeftButtonDown"
                         Cursor="SizeAll" Width="38">

TouchPanel.xaml.cs

@@ -1,5 +1,6 @@
 using System.Runtime.InteropServices;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Input;
 using System.Windows.Media;
 
@@ -14,6 +15,7 @@ public partial class TouchPanel : Window
 
     private readonly Dictionary<int, System.Windows.Controls.Image> activeTouches = [];
     private readonly TouchPanelPositionManager _positionManager;
+    private List<Image> buttons = [];
 
     private enum ResizeDirection
     {
@@ -32,7 +34,12 @@ public partial class TouchPanel : Window
         InitializeComponent();
         Topmost = true;
         _positionManager = new TouchPanelPositionManager();
+        Loaded += Window_Loaded;
+    }
 
+    private void Window_Loaded(object sender, RoutedEventArgs e)
+    {
+        buttons = VisualTreeHelperExtensions.FindVisualChildren<System.Windows.Controls.Image>(this);
     }
 
     public void PositionTouchPanel()
@@ -93,8 +100,16 @@ public partial class TouchPanel : Window
             // If this touch point is already tracking another element, unhighlight the previous one.
             if (activeTouches.TryGetValue(e.TouchDevice.Id, out var previousElement) && previousElement != newElement)
             {
-                HighlightElement(previousElement, false);
+                Task.Delay(50)
-                onRelease((TouchValue)previousElement.Tag);
+                    .ContinueWith(t =>
+                    {
+                        HighlightElement(previousElement, false);
+                        Application.Current.Dispatcher.Invoke(() =>
+                        {
+                            onRelease((TouchValue)previousElement.Tag);
+                        });
+                    });
+
             }
 
             // Highlight the new element and update the tracking.
@@ -146,7 +161,6 @@ public partial class TouchPanel : Window
 
     public void SetDebugMode(bool enabled)
     {
-        var buttons = VisualTreeHelperExtensions.FindVisualChildren<System.Windows.Controls.Image>(this);
         buttons.ForEach(button =>
         {
             button.Opacity = enabled ? 0.3 : 0;
@@ -157,8 +171,10 @@ public partial class TouchPanel : Window
     {
         if (Properties.Settings.Default.IsDebugEnabled)
         {
-            element.Opacity = highlight ? 0.8 : 0.3;
+            Application.Current.Dispatcher.Invoke(() =>
+            {
+                element.Opacity = highlight ? 0.8 : 0.3;
+            });
         }
     }
-
 }

VirtualComPortManager.cs

@@ -7,17 +7,17 @@ internal class VirtualComPortManager
 {
     public Task<string> CheckInstalledPortsAsync()
     {
-        return ExecuteCommandAsync("C:\\Program Files (x86)\\com0com\\setupc.exe", $"list");
+        return ExecuteCommandAsync("thirdparty programs\\com0com\\setupc.exe", $"list");
     }
 
     public Task<string> InstallComPort()
     {
-        return ExecuteCommandAsync("C:\\Program Files (x86)\\com0com\\setupc.exe", $"install PortName=COM3 PortName=COM23");
+        return ExecuteCommandAsync("thirdparty programs\\com0com\\setupc.exe", $"install PortName=COM3 PortName=COM23");
     }
 
     public Task<string> UninstallVirtualPorts()
     {
-        return ExecuteCommandAsync("C:\\Program Files (x86)\\com0com\\setupc.exe", $"uninstall");
+        return ExecuteCommandAsync("thirdparty programs\\com0com\\setupc.exe", $"uninstall");
     }
 
     private async Task<string> ExecuteCommandAsync(string command, string arguments)
@@ -30,7 +30,7 @@ internal class VirtualComPortManager
             RedirectStandardOutput = true,
             RedirectStandardError = true,
             CreateNoWindow = true,
-            WorkingDirectory = "C:\\Program Files (x86)\\com0com"
+            WorkingDirectory = "thirdparty programs\\com0com"
         };
 
         var outputBuilder = new StringBuilder();

WpfMaiTouchEmulator.csproj

@@ -172,6 +172,30 @@
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
     </None>
+    <None Update="thirdparty programs\com0com\com0com.cat">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="thirdparty programs\com0com\com0com.inf">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="thirdparty programs\com0com\com0com.sys">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="thirdparty programs\com0com\ReadMe.txt">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="thirdparty programs\com0com\setup.dll">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="thirdparty programs\com0com\setupc.exe">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="thirdparty programs\com0com\setupg.exe">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="thirdparty programs\com0com\uninstall.exe">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
 </Project>

thirdparty programs/com0com/ReadMe.txt

@@ -0,0 +1,311 @@
+                 =============================
+                 Null-modem emulator (com0com)
+                 =============================
+
+INTRODUCTION
+============
+
+The Null-modem emulator is an open source kernel-mode virtual serial
+port driver for Windows, available freely under GPL license.
+You can create an unlimited number of virtual COM port
+pairs and use any pair to connect one application to another.
+Each COM port pair provides two COM ports with default names starting
+at CNCA0 and CNCB0. The output to one port is the input from other
+port and vice versa.
+
+Usually one port of the pair is used by Windows application that
+requires a COM port to communicate with a device and other port is
+used by device emulation program.
+
+For example, to send/receive faxes over IP you can connect Windows Fax
+application to CNCA0 port and t38modem (http://t38modem.sourceforge.net/)
+to CNCB0 port. In this case the t38modem is a fax modem emulation program.
+
+In conjunction with the hub4com the com0com allows you to
+  - handle data and signals from a single real serial device by a number of
+    different applications. For example, several applications can share data
+    from one GPS device;
+  - use real serial ports of remote computer like if they exist on the local
+    computer (supports RFC 2217).
+
+The homepage for com0com project is http://com0com.sourceforge.net/.
+
+
+INSTALLING
+==========
+
+NOTE (Windows Vista/Windows Server 2008/Windows 7):
+  Before installing/uninstalling the com0com driver or adding/removing/changing
+  ports the User Account Control (UAC) should be turned off (require reboot).
+
+NOTE (x64-based Windows Vista/Windows Server 2008/Windows 7):
+  The com0com.sys is a test-signed kernel-mode driver that will not load by
+  default. To enable test signing, enter command:
+
+    bcdedit.exe -set TESTSIGNING ON
+
+  and reboot the computer.
+
+NOTE:
+  Turning off UAC or enabling test signing will impair computer security.
+
+Simply run the installer (setup.exe). An installation wizard will guide
+you through the required steps.
+If the Found New Hardware Wizard will pop up then
+  - select "No, not this time" and click Next;
+  - select "Install the software automatically (Recommended)" and click Next.
+The one COM port pair with names CNCA0 and CNCB0 will be available on your
+system after the installation.
+
+You can add more pairs with the Setup Command Prompt:
+
+  1. Launch the Setup Command Prompt shortcut.
+  2. Enter the install command, for example:
+
+       command> install - -
+
+The system will create 3 new virtual devices. One of the devices has
+name "com0com - bus for serial port pair emulator" and other two of
+them have name "com0com - serial port emulator" and located on CNCAn
+and CNCBn ports.
+
+To get more info enter the help command, for example:
+
+       command> help
+
+Alternatively to setup ports you can invoke GUI-based setup utility by
+launching Setup shortcut (Microsoft .NET Framework 2.0 is required).
+
+TESTING
+=======
+
+  1. Start the HyperTerminal on CNCA0 port.
+  2. Start the HyperTerminal on CNCB0 port.
+  3. The output to CNCA0 port should be the input from CNCB0 port and
+     vice versa.
+
+
+UNINSTALLING
+============
+
+Simply launch the com0com's Uninstall shortcut in the Start Menu or remove
+the "Null-modem emulator (com0com)" entry from the "Add/Remove Programs"
+section in the Control Panel. An uninstallation wizard will guide
+you through the required steps.
+
+HINT: To uninstall the old version of com0com (distributed w/o installer)
+install the new one and then uninstall it.
+
+
+FAQs & HOWTOs
+=============
+
+Q. Is it possible to run com0com on Windows 9x platform?
+A. No, it is not possible. You need Windows 2000 platform or newer.
+
+Q. Is it possible to install or uninstall com0com silently (with no user
+   intervention and no user interface)?
+A. Yes, it's possible with /S option, for example:
+
+     setup.exe /S
+     "%ProgramFiles%\com0com\uninstall.exe" /S
+
+   You can specify the installation directory with /D option, for example:
+
+     setup.exe /S /D=C:\Program Files\com0com
+
+   NOTE: Silent installation of com0com will not install any port pairs.
+
+Q. Is it possible to change the names CNCA0 and CNCB0 to COM2 and COM3?
+A. Yes, it's possible. To change the names:
+
+   1. Launch the Setup Command Prompt shortcut.
+   2. Enter the change commands, for example:
+
+      command> change CNCA0 PortName=COM2
+      command> change CNCB0 PortName=COM3
+
+Q. The baud rate setting does not seem to make a difference: data is always
+   transferred at the same speed. How to enable the baud rate emulation?
+A. To enable baud rate emulation for transferring data from CNCA0 to CNCB0:
+
+   1. Launch the Setup Command Prompt shortcut.
+   2. Enter the change command, for example:
+
+      command> change CNCA0 EmuBR=yes
+
+Q. The HyperTerminal test succeeds, but I get a failure when trying to open the
+   port with CreateFile("CNCA0", ...). GetLastError() returns ERROR_FILE_NOT_FOUND.
+A. You must prefix the port name with the special characters "\\.\". Try to open
+   the port with CreateFile("\\\\.\\CNCA0", ...).
+
+Q. My application hangs during its startup when it sends anything to one paired
+   COM port. The only way to unhang it is to start HyperTerminal, which is connected
+   to the other paired COM port. I didn't have this problem with physical serial
+   ports.
+A. Your application can hang because receive buffer overrun is disabled by
+   default. You can fix the problem by enabling receive buffer overrun for the
+   receiving port. Also, to prevent some flow control issues you need to enable
+   baud rate emulation for the sending port. So, if your application use port CNCA0
+   and other paired port is CNCB0, then:
+
+   1. Launch the Setup Command Prompt shortcut.
+   2. Enter the change commands, for example:
+
+      command> change CNCB0 EmuOverrun=yes
+      command> change CNCA0 EmuBR=yes
+
+Q. I have to write an application connected to one side of the com0com port pair,
+   and I don't want users to 'see' all the virtual ports created by com0com, but
+   only the really available ones.
+A. if your application use port CNCB0 and other (used by users) paired port is CNCA0,
+   then CNCB0 can be 'hidden' and CNCA0 can be 'shown' on opening CNCB0 by your
+   application. To enable it:
+
+   1. Launch the Setup Command Prompt shortcut.
+   2. Enter the change commands:
+
+      command> change CNCB0 ExclusiveMode=yes
+      command> change CNCA0 PlugInMode=yes
+
+Q. When I add a port pair, why does Windows XP always pops up a Found New Hardware
+   Wizard? The drivers are already there and it can install them silently in the
+   background and report when the device is ready.
+A. It's because there is not signed com0com.cat catalog file. It can be created on
+   your test computer by this way:
+
+   1. Create a catalog file, for example:
+
+      cd "C:\Program Files\com0com"
+      inf2cat /driver:. /os:XP_X86
+
+   2. Create a test certificate, for example:
+
+      makecert -r -n "CN=com0com (test)" -sv com0com.pvk com0com.cer
+      pvk2pfx -pvk com0com.pvk -spc com0com.cer -pfx com0com.pfx
+
+   3. Sign the catalog file by test certificate, for example:
+
+      signtool sign /v /f com0com.pfx com0com.cat
+
+   4. Install a test certificate to the Trusted Root Certification Authorities
+      certificate store and the Trusted Publishers certificate store, for example:
+
+      certmgr -add com0com.cer -s -r localMachine root
+      certmgr -add com0com.cer -s -r localMachine trustedpublisher
+
+   The inf2cat tool can be installed with the Winqual Submission Tool.
+   The makecert, pvk2pfx, signtool and certmgr tools can be installed with the
+   Platform Software Development Kit (SDK).
+
+Q. How to monitor and get the paired port settings (baud rate, byte size, parity
+   and stop bits)?
+A. It can be done with extended IOCTL_SERIAL_LSRMST_INSERT. See example in
+
+   http://com0com.sourceforge.net/examples/LSRMST_INSERT/tstser.cpp
+
+Q. To transfer state to CTS and DSR they wired to RTS and DTR. How to transfer
+   state to DCD and RING?
+A. The OUT1 can be wired to DCD and OUT2 to RING. Use extended
+   IOCTL_SERIAL_SET_MODEM_CONTROL and IOCTL_SERIAL_GET_MODEM_CONTROL to change
+   state of OUT1 and OUT2.  See example in
+
+   http://com0com.sourceforge.net/examples/MODEM_CONTROL/tstser.cpp
+
+Q. What version am I running?
+A. In the device manager, the driver properties page shows the version and date
+   of the com0com.inf file, while the driver details page shows a version of
+   com0com.sys file. The version of com0com.sys file is the version that you
+   are running.
+
+Q. I'm able to use some application to talk to some hardware using com2tcp when
+   both the com2tcp 'server' and 'client' are running on the same computer.
+   When I try to move the client to a remote computer the application gives me
+   a timeout message and has no settings to increase the timeout. How to fix
+   the problem?
+A. Try to ajust AddRTTO and AddRITO params for application's COM port:
+
+   1. Launch the Setup Command Prompt shortcut.
+   2. Enter the change command, for example:
+
+      command> change CNCA0 AddRTTO=100,AddRITO=100
+
+Q. I would like to be able to add, remove and rename virtual comm ports from my
+   own custom application. Is there an API that I can use or some command line
+   utility that will do the job?
+A. The setupc.exe is a command line utility that will do the job. To get more
+   info enter:
+
+      setupc help
+
+   BTW: The setupg.exe is a GUI wrapper for setupc.exe.
+
+Q. I need to use com0com ports with an application that doesn't recognize
+   com0com ports as "real" com ports. It does not see a com0com port even
+   though I have changed it's name to COMx. Is there a com0com settings that
+   will make the port appear to be a "real" com port?
+A. No, there is not, but you can "deceive" the application this way:
+
+   1. With the "Add/Remove Hardware" wizard install new standard serial port.
+      You don't need a real serial hardware to do it. Select non conflicted
+      IO/IRQ resources.
+   2. With the "Device Manager" disable the newly created port (let it be
+      COM4).
+   3. Launch the Setup Command Prompt shortcut.
+   4. Install the pair of ports, were one of them has name COM4, for example:
+
+      command> install PortName=COM4 -
+
+      Ignore a warning about the COM4 is "in use" (press Continue).
+
+Q. Is it possible to configure the com0com to randomly corrupt the data? It
+   would be nice to have this feature so that we can test our application
+   robustness.
+A. Yes, it's possible by setting EmuNoise parameter:
+
+   1. Launch the Setup Command Prompt shortcut.
+   2. Enter the change command, for example:
+
+      command> change CNCA0 EmuNoise=0.00001,EmuBR=yes,EmuOverrun=yes
+      command> change CNCB0 EmuNoise=0.00001,EmuBR=yes,EmuOverrun=yes
+
+   Now each character frame (including idle frames) will be corrupted with
+   probability 0.00001.
+
+Q. What is the maximum number of port pairs that can be defined?
+A. It depends from your system. The com0com itself has internal limit
+   1000000 port pairs.
+
+Q. In my application, users could be installing up to 250 com port pairs.
+   Initially, the installation is fairly quick, but each additional com port
+   generally takes longer to install than the previous one. It quickly
+   becomes unacceptable for a user to be expected to wait for the installation.
+A. It's because the installing of each next port pair requires to update driver
+   for all installed pairs. You can speed up installing of multiple com port
+   pairs by using install commands with --no-update option and finish them by
+   update command, for example:
+
+      command> --no-update install - -
+      command> --no-update install - -
+      ...
+      command> --no-update install - -
+      command> update
+
+   Another example:
+
+      > cd /D "%ProgramFiles%\com0com"
+      > FOR /L %i IN (0,1,249) DO setupc --no-update install - -
+      > setupc update
+
+Q. I am using the 64-bit version of com0com and I am having trouble. I'd like
+   to debug this, but I can not find any free serial port monitor software,
+   like portmon that works with a 64-bit OS. Does anyone know of any?
+A. You can try to use internal com0com's tracing for debuging:
+
+      - get trace.reg file from com0com's source;
+      - import trace.reg to the Registry;
+      - reload driver (or reboot system);
+      - do your tests and watch results in C:\com0com.log file.
+
+   To disable tracing reinstall com0com or import trace_disable.reg to the
+   Registry and reload driver.

thirdparty programs/com0com/com0com.inf

@@ -0,0 +1,150 @@
+;******************************************************************************
+;
+; com0com.inf
+;
+; Installation file for the Null-modem emulator driver.
+;
+; Copyright (c) 2004-2007 Vyacheslav Frolov
+;
+;******************************************************************************
+
+[Version]
+Signature = "$Windows NT$"
+Provider = %VF%
+Class = CNCPorts
+ClassGUID = {df799e12-3c56-421b-b298-b6d3642bc878}
+CatalogFile = com0com.cat
+DriverVer = 01/25/2011,2.2.2.0
+
+;******************************************************************************
+;
+; Class section
+;
+;******************************************************************************
+
+[ClassInstall32]
+AddReg = com0com_ClassReg
+
+[com0com_ClassReg]
+HKR,,,0,%ClassName%
+HKR,,Icon,,-23
+
+;******************************************************************************
+;
+; Source and Destination information
+;
+;******************************************************************************
+
+[SourceDisksNames]
+1 = %DiskId1%,,,""
+
+[SourceDisksFiles]
+com0com.sys = 1,,
+
+[DestinationDirs]
+com0com_CopyDrivers = 12
+
+[com0com_CopyDrivers]
+com0com.sys
+
+;******************************************************************************
+;
+; Driver information
+;
+;******************************************************************************
+
+[Manufacturer]
+%VF% = com0com, NTx86, NTia64, NTamd64
+
+[ControlFlags]
+ExcludeFromSelect = com0com\port
+
+[com0com]
+%com0com.BusDesc% = com0com_inst, root\com0com
+%com0com.PortDesc% = com0com_inst_port, com0com\port
+
+[com0com.NTx86]
+%com0com.BusDesc% = com0com_inst, root\com0com
+%com0com.PortDesc% = com0com_inst_port, com0com\port
+
+[com0com.NTia64]
+%com0com.BusDesc% = com0com_inst, root\com0com
+%com0com.PortDesc% = com0com_inst_port, com0com\port
+
+[com0com.NTamd64]
+%com0com.BusDesc% = com0com_inst, root\com0com
+%com0com.PortDesc% = com0com_inst_port, com0com\port
+
+;******************************************************************************
+;
+; Bus install section
+;
+;******************************************************************************
+
+[com0com_inst]
+AddReg = com0com_AddReg
+CopyFiles = com0com_CopyDrivers
+
+[com0com_inst.Services]
+AddService = com0com, %SPSVCINST_ASSOCSERVICE%, com0com_Service_Inst, com0com_EventLog_Inst
+
+;******************************************************************************
+;
+; Port install section
+;
+;******************************************************************************
+
+[com0com_inst_port]
+AddReg = com0com_AddReg
+
+[com0com_inst_port.Services]
+AddService = com0com, %SPSVCINST_ASSOCSERVICE%, com0com_Service_Inst, com0com_EventLog_Inst
+
+;******************************************************************************
+;
+; Common section
+;
+;******************************************************************************
+
+[com0com_AddReg]
+HKR,,PortDriver,,com0com.sys
+
+[com0com_Service_Inst]
+DisplayName    = %com0com.SrvDesc%
+ServiceType    = %SERVICE_KERNEL_DRIVER%
+StartType      = %SERVICE_DEMAND_START%
+ErrorControl   = %SERVICE_ERROR_NORMAL%
+ServiceBinary  = %12%\com0com.sys
+
+[com0com_EventLog_Inst]
+AddReg = com0com_EventLog_AddReg
+
+[com0com_EventLog_AddReg]
+HKR,,EventMessageFile,%REG_EXPAND_SZ%,"%%SystemRoot%%\System32\IoLogMsg.dll;%%SystemRoot%%\System32\drivers\com0com.sys"
+HKR,,TypesSupported,%REG_DWORD%,7
+
+;******************************************************************************
+;
+; Strings
+;
+;******************************************************************************
+
+[Strings]
+
+SPSVCINST_ASSOCSERVICE = 0x00000002
+
+REG_EXPAND_SZ          = 0x00020000
+REG_DWORD              = 0x00010001
+
+SERVICE_KERNEL_DRIVER  = 1
+SERVICE_DEMAND_START   = 3
+SERVICE_ERROR_NORMAL   = 1
+
+DiskId1 = "Installation Disk #1 (com0com - Null-modem emulator)"
+VF = "Vyacheslav Frolov"
+com0com.BusDesc = "com0com - bus for serial port pair emulator"
+com0com.PortDesc = "com0com - serial port emulator"
+com0com.SrvDesc = "com0com - emulates the serial ports interconnected via a null-modem cable"
+ClassName = "com0com - serial port emulators"
+
+;******************************************************************************