How to show, close, fade, or move the on-screen keyboard
You can use Windows Messages to manipulate the on-screen keyboard.
Like this:
WM_CSKEYBOARD = WM_USER + 192;
WM_CSKEYBOARDMOVE = WM_USER + 193;
WM_CSKEYBOARDRESIZE = WM_USER + 197;
// to show keyboard
PostMessage(FindWindow('TFirstForm', 'CKeysFirstForm'), WM_CSKEYBOARD, 1, 0);
// to close keyboard
PostMessage(FindWindow('TFirstForm', 'CKeysFirstForm'), WM_CSKEYBOARD, 2, 0);
// to fade keyboard
PostMessage(FindWindow('TFirstForm', 'CKeysFirstForm'), WM_CSKEYBOARD, 3, 0);
// to toggle (show/hide) keyboard
PostMessage(FindWindow('TFirstForm', 'CKeysFirstForm'), WM_CSKEYBOARD, 4, 0);
// to move keyboard (Left, Top - new position)
PostMessage(FindWindow('TFirstForm', 'CKeysFirstForm'), WM_CSKEYBOARDMOVE, Left, Top);
// to resize keyboard
PostMessage(FindWindow('TFirstForm', 'CKeysFirstForm'), WM_CSKEYBOARDRESIZE, Width, Height);
Private Const WM_CSKEYBOARD = WM_USER + 192 Private Const WM_CSKEYBOARDMOVE = WM_USER + 193 Private Const WM_CSKEYBOARDRESIZE = WM_USER + 197
Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
'Code to show keyboard Dim hWnd As Long hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage hWnd, WM_CSKEYBOARD, 1, 0
'Code to close keyboard Dim hWnd As Long hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage hWnd, WM_CSKEYBOARD, 2, 0
'Code to move keyboard Dim hWnd As Long hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage hWnd, WM_CSKEYBOARDMOVE, 0, 0
'Code to resize keyboard Dim hWnd As Long hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage hWnd, WM_CSKEYBOARDMOVE, Width, Height |
using System; using System.Windows.Forms; using System.Runtime.InteropServices;
public const Int32 WM_USER = 1024; public const Int32 WM_CSKEYBOARD = WM_USER + 192; public const Int32 WM_CSKEYBOARDMOVE = WM_USER + 193; public const Int32 WM_CSKEYBOARDRESIZE = WM_USER + 197;
[DllImport("user32.dll", EntryPoint = "FindWindow")] private static extern Int32 FindWindow(string _ClassName, string _WindowName);
[DllImport("User32.DLL")] public static extern Boolean PostMessage(Int32 hWnd, Int32 Msg, Int32 wParam, Int32 lParam);
Int32 hWnd = FindWindow("TFirstForm", "CKeysFirstForm"); PostMessage(hWnd, WM_CSKEYBOARD, 1, 0 ); // Show PostMessage(hWnd, WM_CSKEYBOARD, 2, 0); // Hide PostMessage(hWnd, WM_CSKEYBOARDMOVE, 0, 0); // Move to 0, 0 PostMessage(hWnd, WM_CSKEYBOARDRESIZE, 600, 300); // Resize to 600, 300 |
Const WM_CSKEYBOARD = &H400 + 192 Const WM_CSKEYBOARDMOVE = &H400 + 193 Const WM_CSKEYBOARDRESIZE = &H400 + 197
Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Integer Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Integer, ByVal wMsg As Integer, ByVal wParam As Integer, ByVal lParam As Integer) As Integer
'Open/show the Comfort Onscreen Keyboard Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim hWnd As Integer hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage(hWnd, WM_CSKEYBOARD, 1, 0) End Sub
'Close the Comfort Onscreen Keyboard Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Dim hWnd As Integer hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage(hWnd, WM_CSKEYBOARD, 2, 0) End Sub
'Move the Comfort Onscreen Keyboard; Move it first then show it Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim hWnd As Integer hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage(hWnd, WM_CSKEYBOARDMOVE, 200, 200) PostMessage(hWnd, WM_CSKEYBOARD, 1, 0) End Sub
'Toggle the Comfort Onscreen Keyboard Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim hWnd As Integer hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage(hWnd, WM_CSKEYBOARD, 4, 0) End Sub
'Fade the Comfort Onscreen Keyboard Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click Dim hWnd As Integer hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage(hWnd, WM_CSKEYBOARD, 3, 0) End Sub
'Change the keyboard type and show it Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click 'Change the Registry entry for the required keyboard My.Computer.Registry.SetValue("HKEY_CURRENT_USER\Software\ComfortSoftware\CKeys", "KeyboardName", "Name of your chosen keyboard") 'Open the keyboard Dim hWnd As Integer hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage(hWnd, WM_CSKEYBOARD, 1, 0) End Sub
'Change to another keyboard type and show it Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click 'Change the Registry entry for the required keyboard My.Computer.Registry.SetValue("HKEY_CURRENT_USER\Software\ComfortSoftware\CKeys", "KeyboardName", "Name of another chosen keyboard") 'Open the keyboard Dim hWnd As Integer hWnd = FindWindow("TFirstForm", "CKeysFirstForm") PostMessage(hWnd, WM_CSKEYBOARD, 1, 0) End Sub |
using namespace System::Runtime::InteropServices; using namespace System::Security::Permissions; using namespace Microsoft::Win32;
const System::UInt32 WM_USER = 1024; const System::UInt32 WM_CSKEYBOARD = WM_USER + 192; const System::UInt32 WM_CSKEYBOARDMOVE = WM_USER + 193;
[DllImport("user32.dll")] extern IntPtr FindWindow(String^ lpClassName, String^ lpWindowName); [DllImport("user32.dll")] extern IntPtr PostMessage(System::IntPtr hWnd, System::UInt32 Msg, int wParam, int lParam); [assembly:RegistryPermissionAttribute(SecurityAction::RequestMinimum, All = "HKEY_CURRENT_USER")];
....blah blah blah you normal code...
void button1_Click(System::Object^ sender, System::EventArgs^ e) { // Open/show the Comfort Onscreen Keyboard IntPtr hWnd; hWnd = FindWindow("TFirstForm", "CKeysFirstForm"); PostMessage(hWnd, WM_CSKEYBOARD, 1, 0); } void button2_Click(System::Object^ sender, System::EventArgs^ e) { // close the Comfort Onscreen Keyboard IntPtr hWnd; hWnd = FindWindow("TFirstForm", "CKeysFirstForm"); PostMessage(hWnd, WM_CSKEYBOARD, 2, 0); } void button3_Click(System::Object^ sender, System::EventArgs^ e) { //Move the Comfort Onscreen Keyboard; Move it first then show it IntPtr hWnd; hWnd = FindWindow("TFirstForm", "CKeysFirstForm"); PostMessage(hWnd, WM_CSKEYBOARDMOVE, 200, 200); PostMessage(hWnd, WM_CSKEYBOARD, 1, 0); } void button4_Click(System::Object^ sender, System::EventArgs^ e) { //Toggle the Comfort Onscreen Keyboard IntPtr hWnd; hWnd = FindWindow("TFirstForm", "CKeysFirstForm"); PostMessage(hWnd, WM_CSKEYBOARD, 4, 0); } void button5_Click(System::Object^ sender, System::EventArgs^ e) { //Fade the Comfort Onscreen Keyboard IntPtr hWnd; hWnd = FindWindow("TFirstForm", "CKeysFirstForm"); PostMessage(hWnd, WM_CSKEYBOARD, 3, 0); } void button6_Click(System::Object^ sender, System::EventArgs^ e) { //Change the keyboard type and show it System::Object ^kname="NumPad";
//Change the Registry entry for the required keyboard
RegistryKey ^key= Registry::CurrentUser->OpenSubKey ( "Software\\ComfortSoftware\\CKeys",true); key->SetValue("KeyboardName",kname);
//Open the keyboard IntPtr hWnd; hWnd = FindWindow("TFirstForm", "CKeysFirstForm"); PostMessage(hWnd, WM_CSKEYBOARD, 1, 0); } |
/* * This file is heavily based on Jawin: <a href="http://jawinproject.sourceforge.net/" rel="external">http://jawinproject.sourceforge.net/</a> * * assumes ComfortSoftware keyboard is loaded... * */
package client.keyboard;
import java.io.ByteArrayInputStream; import java.io.IOException;
import org.jawin.COMException; import org.jawin.FuncPtr; import org.jawin.ReturnFlags; import org.jawin.io.LittleEndianInputStream; import org.jawin.io.LittleEndianOutputStream; import org.jawin.io.NakedByteStream;
public class ComfortSoftwareKeyboard {
protected static final String COMFORT_SOFTWARE_WINDOW_NAME = "CKeysFirstForm"; protected static final String COMFORT_SOFTWARE_CLASS_NAME = "TFirstForm";
protected static final int WM_USER = 1024; protected static final int WM_CSKEYBOARD = WM_USER + 192; protected static final int WM_CSKEYBOARDMOVE = WM_USER + 193;
protected static final Call FIND_WINDOW = new Call("USER32.DLL", "FindWindowW", "GG:I:", 8); protected static final Call POST_MESSAGE = new Call("USER32.DLL", "PostMessageW", "IIII:I:", 16);
private static ComfortSoftwareKeyboard INSTANCE = new ComfortSoftwareKeyboard();
public static ComfortSoftwareKeyboard getInstance() { return INSTANCE; }
protected int getWindowHandle() throws COMException, IOException { FuncPtr findWindow = null; findWindow = new FuncPtr(FIND_WINDOW.getDllName(), FIND_WINDOW.getFunctionName()); NakedByteStream bs = new NakedByteStream(); LittleEndianOutputStream leo = new LittleEndianOutputStream(bs); leo.writeStringUnicode(COMFORT_SOFTWARE_CLASS_NAME); leo.writeStringUnicode(COMFORT_SOFTWARE_WINDOW_NAME); byte[] b = findWindow.invoke(FIND_WINDOW.getParameterDescription(), FIND_WINDOW.getStackSize(), bs, null, ReturnFlags.CHECK_FALSE); LittleEndianInputStream leis = new LittleEndianInputStream( new ByteArrayInputStream(b)); int l = leis.readInt(); findWindow.close(); return l; }
public int move(int x, int y) throws COMException, IOException { int hWnd = getWindowHandle();
FuncPtr postMessage = null; postMessage = new FuncPtr(POST_MESSAGE.getDllName(), POST_MESSAGE.getFunctionName()); NakedByteStream bs = new NakedByteStream(); LittleEndianOutputStream leo = new LittleEndianOutputStream(bs);
leo.writeInt(hWnd); leo.writeInt(WM_CSKEYBOARDMOVE); leo.writeInt(x); leo.writeInt(y);
byte[] b = postMessage.invoke(POST_MESSAGE.getParameterDescription(), POST_MESSAGE.getStackSize(), bs, null, ReturnFlags.CHECK_FALSE); LittleEndianInputStream leis = new LittleEndianInputStream( new ByteArrayInputStream(b)); int l = leis.readInt(); postMessage.close(); return l; }
public int setVisible(boolean visible) throws COMException, IOException { int hWnd = getWindowHandle();
FuncPtr postMessage = null; postMessage = new FuncPtr(POST_MESSAGE.getDllName(), POST_MESSAGE.getFunctionName()); NakedByteStream bs = new NakedByteStream(); LittleEndianOutputStream leo = new LittleEndianOutputStream(bs);
leo.writeInt(hWnd); leo.writeInt(WM_CSKEYBOARD); leo.writeInt(visible ? 1 : 2); leo.writeInt(0);
byte[] b = postMessage.invoke(POST_MESSAGE.getParameterDescription(), POST_MESSAGE.getStackSize(), bs, null, ReturnFlags.CHECK_FALSE); LittleEndianInputStream leis = new LittleEndianInputStream( new ByteArrayInputStream(b)); int l = leis.readInt(); postMessage.close(); return l; }
public static void main(String[] args) throws Exception { try { ComfortSoftwareKeyboard keyboard = ComfortSoftwareKeyboard.getInstance(); keyboard.setVisible(true); Thread.sleep(1000); keyboard.setVisible(false); Thread.sleep(1000); keyboard.setVisible(true); for (int i = 0; i < 100;i++) { keyboard.move(i, i); } } catch (COMException e) { } finally { } } }
class Call { private int stackSize; private String functionName; private String parameterDescription; private String dllName;
public Call(String dllName, String functionName, String parameterDescription, int stackSize) { this.stackSize = stackSize; this.functionName = functionName; this.parameterDescription = parameterDescription; this.dllName = dllName; } public int getStackSize() {return stackSize;} public String getFunctionName() {return functionName;} public String getParameterDescription() {return parameterDescription;} public String getDllName() {return dllName;} } |
If you can't use Windows Messages then download and try these files:
https://www.comfortsoftware.com/download/ShowKB.exe
https://www.comfortsoftware.com/download/HideKB.exe
https://www.comfortsoftware.com/download/ToggleKB.exe
https://www.comfortsoftware.com/download/MoveTopKB.exe
https://www.comfortsoftware.com/download/MoveBottomKB.exe
https://www.comfortsoftware.com/download/MoveLeftKB.exe
https://www.comfortsoftware.com/download/MoveRightKB.exe
https://www.comfortsoftware.com/download/MoveKB.exe (Command line format: MoveKB.exe Left Top)
https://www.comfortsoftware.com/download/SetNameKB.exe (Command line format: SetNameKB.exe KeyboardName)
If you are writing kiosk software using HTML, you can use the special JavaScript functions to control the on-screen keyboard.
With JavaScript, you can show, hide, or move the keyboard. Just use the special JavaScript functions to add keyboard-related information to the browser caption, and the application will monitor the caption for changes.
Download the file with JavaScript functions and examples from here: https://www.comfortsoftware.com/commander.html
WM_CSKEYBOARDMOVE: Solving the issue with moving the keyboard when using multiple screens with different DPI.
For example, Screen 1 has a resolution of 2560x1440 and is set to "125% scale" in Windows display settings. Screen 2 is 1920x1080 and is set to "100% scale".
Open the Windows 10 app compatibility settings of the CKeys.exe file and set the DPI behavior to "Application", which means that the application manages all DPI-related calculations. With this setting activated, you can pass physical pixel values to the move function of your API, and the keyboard window is then moved to exactly that position.
If you want to activate this compatibility mode programmatically (e.g., with your own installer), you have to set the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers:
"C:\Program Files\ComfortKeys\CKeys.exe"="~ HIGHDPIAWARE"
This will then apply to all users. Alternatively, you can place this key in the registry for the current user (HKCU).