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Producing KeyPress events for the Console

by PIEBALDconsult

A C# class to raise KeyPress events for use in Console Applications

Recent value with KeyPress

by AditSheth

You can pass object as parameter to generalize function function showContent(e,object) { var recentChar...

by assamheart

Crop a photo and signature from an scanned image

InputManager library - Track user input and simulate input (mouse and keyboard)

by shynet

A library that contains classes to simulate user input and track user input (mouse and keyboard), in C# and VB.NET.

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Graphical BinaryTrees

by Mojtaba Hosseini

A graphical binary tree. Features: add, remove, or search for a node. Recursive algorithm has been used

How to handle and use event of simultaneously pressed two or more keys in C# - WASD keyboard game controls -

by Perić Željko

Example of handling multiple key press event

Handling Back Button Press in an Activity Called For Result

by JainGirish

Understanding Android activities handling of back key press - some useful tips to avoid unexpected results or app crash

A Software Virtual Keyboard for Your WPF Apps

by JamesHurst

Walks through the creation of an on-screen virtual keyboard for entering non-ASCII chars

All Articles

Keypress

C# keypress event fires to many times

15 Jul 2011 by Tim Groven

On the keypress event, you are calling OppdaterSkjema() which then calls this: this.frmArbeidsplan_Load(sndr, es);.In the form load method, it is hooking up the keypress event again. So when you press a key, it calls the event one more time than last time.Get rid of the call to Load,...

Allowing only Integer value in a textbox in c#

14 May 2014 by OriginalGriff

So stop allowing it through: remove the && ch != 46 part which allows '.'

Press and Hold Keyboard key programmatically

28 Apr 2011 by Abhinav S

This discussion could help.

Press and Hold Keyboard key programmatically

28 Apr 2011 by Sergey Alexandrovich Kryukov

Yes, SendKey is very limited.First of all, think why would you need to simulate a key input. Normal UI development never requires it. This is only used for creation of some system tricks, suck as playing back keyboard macro or Virtual Keyboard.The comprehensive way of simulation input is...

Tab malfunction

27 Mar 2010 by #realJSOP

Make sure you've specifically set your tab order on all controls in the form and see if it fixes it.It might be that you've written some code for the control to prevent the tab key from working.

How does TextBox get text from key input? (Basic TextBox Method)

9 Jul 2011 by Heath Stewart

A TextBox (assuming you mean System.Windows.Forms.TextBox - please be specific if not) is actually a wrapper around the Win32 Edit common control, so text is actually posted to a window handle (HWND) and native code in Windows handles processing.But a TextBox can handle input by overriding...

How to check the pressed key is a function key or not..?

19 Oct 2011 by Reiss

You should be able to just writevoid KeyUpEvent(object sender, KeyEventArgs e){ if (e.KeyCode >= Keys.F1 && e.KeyCode

Producing KeyPress events for the Console

23 Nov 2011 by PIEBALDconsult

A C# class to raise KeyPress events for use in Console Applications

C# - Best way to detect if shift is pressed outside my form

10 Apr 2013 by Sergey Alexandrovich Kryukov

This is impossible if you use .NET FCL, because this is not really needed. For your information, "focus" means "keyboard focus" and nothing else. The difference you see on screen is no more than a visual clue to show the focus. As a form has no keyboard focus, it does not accept keyboard events...

thousand separator on keypress event

11 Apr 2013 by Sergey Alexandrovich Kryukov

It could be something likeconst string numericFormat = "###,###,###,###,###,###,###"; // make it long enough to fit maximum and minimum decimal of the range you need// if this string is longer then needed, it won't harm//...decimal myValue = //...myTextBox.Text =...

Sending Keys vb.net 2010

18 Apr 2013 by Johnny J.

You have to send the keys to open the font dialog first. On my Swedish computer it's "Alt + t" to open the format menu, then "Alt + t" to open the font dialog. Then a third "Alt + t" to access the font name box, and then the font name to change it. (You need to check on your own computer what...

Wenn key is pressed it run more then once.

16 Nov 2013 by Sergey Alexandrovich Kryukov

If you need to respond to Enter key press, use different event:this.textBox.KeyDown += (sender, eventArgs) => { if (eventArgs.KeyCode == Keys.Enter; // it is neither 13 nor 10, please see below};You could use the event KeyUp the same way, not not very different event KeyPress which...

how set keypress in form in c#

27 Jun 2011 by Tarun.K.S

Do the following:Set the form's KeyPreview to true so that the form can capture the Spacebar.this.KeyPreview = true;Then use the KeyDown event of the form: this.KeyDown += new KeyEventHandler(Form1_KeyDown);Suppose you have a button's event handler like this:private void...

How does TextBox get text from key input? (Basic TextBox Method)

9 Jul 2011 by Sergey Alexandrovich Kryukov

You should do it handling the event KeyPress. The event arguments of this event will give you the key character pressed; you can compare it with the Unicode code point ranges you expect for input and issue the warning. Alternatively (or better additionally), you can filter out unwanted...

How to check weather a key pressed is with shift key or not...?

25 Sep 2011 by Roger Wright

Several workable methods are documented here[^], and I'm sure one of them will work for you. In fact, I've wondered how to do this a few times myself. Thanks for a good question!

How to check weather a key pressed is with shift key or not...?

25 Sep 2011 by lukeer

I see two possibilities here:1. In the OnKeyDown event, you can use a KeyEventArgs parameter. It holds a boolean value telling whether Shift is pressed at the moment of event generation or not.2. When validating a string that results from keypresses, don't focus on the keys pressed but...

How to check weather a key pressed is with shift key or not...?

25 Sep 2011 by Sergey Alexandrovich Kryukov

It's a shame you did not specify UI library. What, do I need to give you answers for all cases?For WPF, use event arguments of the event, take the property KeyboardDevice, its type has a method System.Windows.Input.KeyboardDevice.GetKeyStates which will return a state of any...

How to check weather a key pressed is with shift key or not...?

25 Sep 2011 by sravani.v

Try this onefunction isKeyPressed(event){ if (event.shiftKey==1){ alert("The shift key was pressed!") }else{ alert("The shift key was NOT pressed!") }}orfunction...

How to check the pressed key is a function key or not..?

19 Oct 2011 by Simon Bang Terkildsen

public static bool IsFunctionKey(Keys k){ return k >= Keys.F1 && k

Using Keypress to Process Keypress on form

15 Nov 2011 by w4uoa

In frmMain I have:AddHandler Me.PreviewKeyDown, AddressOf Me.TrapKeyPreviewAddHandler Me.KeyDown, AddressOf Me.TrapKeyDownMe.KeyPreview = TrueThere are then two additional subs:Private Sub TrapKeyPreview(ByVal sender As Object, _ ByVal e As...

Using Keypress to Process Keypress on form

15 Nov 2011 by Pete _BSC

I ran into a problem where I needed to capture Page Up, Page Down, Home and End (to use for quick keys for navigation); however, the standard events were not capturing them. Not sure if this helps you in your situation; but, maybe worth a look into. Protected Overrides Function...

Why isn't this KeyPress method picking up my keyboard input?

5 Dec 2011 by Manfred Rudolf Bihy

Some control that has the focus may consume the event so it isn't invoked for the form. There is some property in a windows form that will allow the form to listen in on events that were not raised on the form itself. The property has preview in its name. Since I'm writing this from my mobile I...

System.Windows.Forms.SendKeys....

13 Apr 2012 by PK DEVELOPER

Hi all,I want to find something like System.Windows.Forms.SendKeys.SendWait(string); to send unicodechars & keys to focused window using MonoMac. I first tried to simulate key press but that is not what I am looking however event simulating key press bothered me alot(and after 3 days hard...

Vb.net - Datagridview Combobox column

4 Oct 2012 by rohitpg

Hello ,I am unable to load a Datagridview combobox column on a Keypress event. When the user enters a character , I'll fetch all the entries starting from that character (From the Database). During the same event i need to Suggest append all the list items. It works only when i move out of...

How to bind GridView on textbox keypressed

22 Oct 2012 by Bhushan Shah1988

You can use Server Side event TextChanged of Textbox.

Selected item id on keypress event of jquery autocomplete

1 Feb 2013 by akee seth

Hi all,I have an jquery autocomplete and which select membername with their id. I am getting the selected member id when select event is called like below://For autocomplete extender generating members $(function () { $('.tags').autocomplete({ //make ajax...

C# - Best way to detect if shift is pressed outside my form

10 Apr 2013 by Thanks7872

if ((Control.ModifierKeys & Keys.Shift) != 0)This will be true if shift key is down..

Wenn key is pressed it run more then once.

16 Nov 2013 by BillWoodruff

In the case you want to allow keyboard-repeat for all characters except the 'Return key:private bool IsReturnDown = false;public void textBox1_KeyUp(object sender, KeyEventArgs e){ IsReturnDown = false;}public void textBox1_KeyDown(object sender, KeyEventArgs e){ //...

Jnativehook nativekeypressed not called when application is installed as windows service

3 Aug 2017 by Richard MacCutchan

Windows services do not run in a session which has access to a terminal (desktop). That is to say no screen or keyboard (logical or physical) is attached. So bottom line is you cannot do this from a service. And, to be honest, that is just as well as such a feature would open a huge security...

Windows-service

Sendinput doesnt work on terminal service :\

29 Aug 2010 by spitniv

Hi,I posted the full question on StackOverFlow:http://stackoverflow.com/questions/3554171/cant-send-a-single-key-function-to-remote-desktopLong story short:Im able to send text to the remote computer but not single key strokes (meaning as keys, not as a string).I think the...

Need help to validate Currency and Numeric using KeyPress

20 Oct 2010 by siang_wu_id

this is my code in VB.NET 2008 and it works :-D as the result, i can input starts from 1.00 until 99.99 :cool: but i need more than this X| i want the textbox automatic validate the input as i typed in the textbox :-\ example: i typed "1000" then the textbox will write "1,000" ...

Need help to validate Currency and Numeric using KeyPress

20 Oct 2010 by Sandeep Mewara

Google/CP Search for Masked textbox. You need to make a custom control or say enhanced textbox control that can do all this for you.

UI problem in VB.NET

2 Dec 2010 by meetaqadir

Hi,I am using Visual Studio .NET 2010 with VB.NET.I am showing a form in panel by settings its TopLevel to false. This is ok and working fine.Problem is that "Enter" key doesn't work when i handle and keypress, keydown event. I mean these event doesn't trigger when "Enter" key is...

UI problem in VB.NET

5 Dec 2010 by Lex Webb

Can you give a sample of the code you are using to make this event happen?

voice recognition and special keyboard keys

6 Dec 2010 by ErrolErrol

Thank you, in advance, for any assistance that you may lend. I am using the voice recognition software found in Windows 7. I am also using the additional macro recognition software from MS. An example of usage would be: I utter the word "foobar" and instead of typing those characters on my page,...

voice recognition and special keyboard keys

8 Dec 2010 by ErrolErrol

Hi Me! First things first. I really want to thank the 49 people that took a look at my question, shrugged and headed off to do something worth their time. I do appreciate very much the moments of your lives that you spent trying to help me.It turns out that I should have been trying...

User32 keybd event - Ensuring Success

21 Dec 2010 by Jibrohni

Good day one and all,I have written a small application that allows me to specify an application, and send it keystrokes or directed mouse-clicks.I'm using keybd_event and mouse_event in the user32.dll. Now I've been successful in getting it working, however I understand that there are...

User32 keybd event - Ensuring Success

22 Dec 2010 by #realJSOP

All you can really do is check to make sure the target app is a) still running, and b) is still "responding". The way Task Manager checks to see if an app is running is that it uses SendMessageTimeout to send a WM_GETICON message to the app window and waits for a return value. If it doesn't get...

Press and Hold Keyboard key programmatically

28 Apr 2011 by enggpedia

I am developing a game for which i wanted to press and hold up or down or left or right key for some time the game is racing.Normally we send keys through sendkey functions but for holding a particular value i don't know how to do it.

how set keypress in form in c#

27 Jun 2011 by Christian Graus

You have to handle one of the key events, keydown, keyup, keypress. Then, have your click event call a method and call the same method if space is pushed.

How does TextBox get text from key input? (Basic TextBox Method)

10 Jul 2011 by Espen Harlinn

From the previous discussion I think this is what you need:InputLanguage.CurrentInputLanguage[^] - this property gets or sets the input language for the current thread.Use InputLanguageCollection[^] as the source of available input languages.Best regardsEspen Harlinn

Recent value with KeyPress

6 Sep 2011 by AditSheth

You can pass object as parameter to generalize function function showContent(e,object) { var recentChar...

How to check the pressed key is a function key or not..?

19 Oct 2011 by version_2.0

Hai all,How to check the pressed key is a function key or not..?please reply me.. Thanks in advance..

C# Keymapping Application

31 Oct 2011 by Nish Nishant

Without detailed info, my geuss would be that most of those games would be using direct keyboard access (overriding the user-level keyboard hooking).

Set text for a TextBox control of a third party WPF application

8 Nov 2011 by Morteza Farmahini

Hi,I intend to write an application in .Net (C#) that sets some special text for any text area of third party applications using some keyboard shortcuts.I tried this using Send() method of SendKeys class, but problem occurs when my shortcut key is a combination of Ctrl/Alt key(s) and another...

propertyGrid key listener

24 Nov 2011 by xtremas

I have a propertyGrid;I make bunch on number properties in it;How can I make that once I enter a property(value field) I can incr\descr the value of that number by pressing arrows?

Why isn't this KeyPress method picking up my keyboard input?

5 Dec 2011 by EpikYummeh

I have the following code in my Windows Form code and for whatever reason the key presses aren't being picked up because my code isn't being executed. For example, pressing Space will hide the window. It doesn't.private void Form1_KeyPress(object sender, KeyPressEventArgs e){ if...

System.Windows.Forms.SendKeys....

15 Apr 2012 by CharlieSimon

I don't know if the below will work on MonoMAC but it certainly works well on Windows. And it's free, and it's documented and other good stuff.http://inputsimulator.codeplex.com/

Simulate Keypress without sendkeys.

17 May 2012 by MrZedSven

I have a jukebox program running that does announcements if you press certain buttons on the keyboard. I wanted to do the key presses using my own program, running in the background, based on certain time periods.I have used sendkeys.send and my.computer.keyboard.sendkeys but it doesn't...

Simulate Keypress without sendkeys.

18 May 2012 by Stephen Hewison

User account control in windows Vista and later can block send keys.If one process has elevated permissions it won't be able to send keys to another.Read the notes in the follow MSDN article:SendKeys Class[^]

How to select an image on the Canvas

13 Jun 2012 by WajihaAhmed

I have got a canvas, with a layout of a Checkers board. At the position of pieces, I have placed images. The point at which I got stuck is, how to select/highlite a piece's image for a move. I can't figure out the appropriate commandListener and how to handle this keyPressedEvent.Any suggestions?

Vb.net - Datagridview Combobox column

7 Oct 2012 by rohitpg

Finally got what i wanted.Here is the Working Code in VB.netAdd a Datagridview with the first column as DatagridviewComboboxColumnPaste the code and then Type 'a' to get all the list items in SuggestAppend format.Public class Form1Dim ComboMedType As ComboBoxPrivate Sub...

Why doesn't this KeyPress code work?

12 Oct 2012 by AmitGajjar

Hi,The possible cause is your keyboard focus is not on the form. if you have added more number of controls on your form and your tab focus is on some control then it will not fire the event.If you want to fire this event, make sure your current focus is on the form. Hope you got the...

How to bind GridView on textbox keypressed

22 Oct 2012 by ownfrog

hi @ all I'm searching for a solution to do a DataBind of my GridView when I entered a sign in my textbox (onkeypress).The whole thing, should be a search like google. When I enter something the gridview should updated his datasource with the text in the textbox and display the...

enter key as traversal key

30 Oct 2012 by OriginalGriff

I would strongly suggest that you reconsider.Users generally expect ENTER to effect a button, or submit a page generally. To move from field to field, they expect to use TAB.Unless you have a *VERY* good reason for changing this behaviour you will just confuse and annoy your users, and...

enter key as traversal key

30 Oct 2012 by Clifford Nelson

I have found probably a better way to simulate key strokes:System.Windows.Forms.SendKeys.Send("{TAB}");See...

how to change specified lettes in textbox with KeyPress event

5 Jan 2013 by ahmetkocadogan

hi all. i want to change some specified letters to another letters with KeyPress event of the textbox. i want the letter "Ş" change to letter "Þ". this is necessary for my work to be able to see the letters correct on a sqlserver which has a Latin collation. how can i do that? with streamreader,...

how to change specified lettes in textbox with KeyPress event

5 Jan 2013 by ahmetkocadogan

i solved now, with the : textbox.Text = textbox.Text.Replace("Ş", "Þ");

Selected item id on keypress event of jquery autocomplete

1 Feb 2013 by Niral Soni

replace keypress with change event

how move to next cell in datagridvies when press enter key

11 Mar 2013 by Sandeep Mewara

Here, have a look at answer to same question asked earlier: make enter key act as Tab key on Textbox[^] - Solution1 is for Winforms and Solution2 is for Webforms.

VB.NET > Text box sum is one keypress behind

14 Mar 2013 by Martin Hosking

Hi, Firstly, I am fairly new to VB.NET and still in the learning curve.I am working on an application for work and we have 10 text boxes, 5 that are for Hours and 5 for Indirect Hours, I can enter text in to them all fine and they update label text no problem. The problem is when I am typing...

VB.NET > Text box sum is one keypress behind

14 Mar 2013 by Maciej Los

You can't do that in this way:If txtClockHour.Text > "" And txtIndirectHour.Text > "" ThenRead more about: Operators and Expressions in Visual Basic[^]Check the length of string, using String.Length property[^]:If txtClockHour.Text.Length > 0 And txtIndirectHour.Text.Length > 0...

VB.NET > Text box sum is one keypress behind

14 Mar 2013 by Martin Hosking

Hi, Thank you both for you help, I managed to do this using MacieJ Los answer by creating a 'sub' instead of a class and calling the sub, like below. Thank you.Sub Public Sub TotNum1() Dim TotNum1 As Integer Dim TotNum2 As Integer Dim TotNum3 As...

C# - Best way to detect if shift is pressed outside my form

10 Apr 2013 by KuntzCreation

Hey guy, what is the best way to detect if Control key, or Shift key is pressed, without my form is on focus

22 Apr 2013 by assamheart

Crop a photo and signature from an scanned image

Detect Multiple keypress in timer HOW ?

22 Jun 2013 by Member 9522119

private void timer1_Tick(object sender, EventArgs e){ if (Form.ModifierKeys == System.Windows.Forms.Keys.Control && Form.ModifierKeys == System.Windows.Forms.Keys.Enter) my_translate(textbox1.text); }I try it but dont work how can I do it?I am writing a dictionary...

How Multiple keypress in Timer or timer altnernative ?

22 Jun 2013 by Ron Beyer

OK, I'm not agreeing with how you are going about this, but what you are trying is not working because you are trying to detect key presses in a different application than yours. If you want to determine what keys are down, you can use this class: static class NativeMethods { ...

Button Event to occur when I press a Keyboard key

26 Jul 2013 by Sushil Mate

You have form? Create the KeyDown[^] Event. From http://stackoverflow.com/a/3334956[^]public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { this.BringToFront(); this.Focus(); ...

Wenn key is pressed it run more then once.

16 Nov 2013 by The Raising Programmer

Have been using google but with no success. Wenn i press "Enter" it run several timesand pops up plenty of "MessageBoxes"this.TextBox.KeyPress += new System.Windows.Forms.KeyPressEventHandler(CheckEnter); private void CheckEnter(object sender,...

How Can I Restrict Passing Enter Key Event From Child To Parent In C#

6 Apr 2014 by george4986

i have an invoice form with a grid for items,loaded from a child form on key press.keypress code in parent: protected override bool ProcessCmdKey(ref Message msg, Keys keyData) { if (keyData == (Keys.F11)) { childform obj = new childform...

How Can I Restrict Passing Enter Key Event From Child To Parent In C#

7 Apr 2014 by george4986

I have added following code in child forms onload event and now its working//////////fnd_item , is the search control fnd_item.SmartTab = false;

Sending a keystroke to a 16bit DOS application wrapped in NTVDM

3 Nov 2014 by Franz W

I am trying to send keystrokes to a 16bit DOS application that is wrapped in NTVDM. My code below currently is able to successfully send keystrokes to any application (e.g. Notepad) including the command prompt which makes me wonder why it doesnt work with the DOS application im trying to send...

Allowing only Integer value in a textbox in c#

14 May 2014 by dan!sh

You could use a NumericUpDown control assuming this is a Windows Forms based application.

Allowing only Integer value in a textbox in c#

14 May 2014 by balajidileepkumar

private void textBox1_KeyPress(object sender, KeyPressEventArgs e){e.Handled = ((new Char[] {'0','1','2','3','4','5','6','7','8','9'}).ToList()).Contains(e.KeyChar)?false:true;//you can either change it to e.Handled = char.IsDigit(e.KeyChar) ? false : true;}

use of keypressevent for animating a item in qt

27 Jun 2014 by mary99

in this program I have built a QPropertyanimation .and add to it my item and pos () property. I override KeyPressEvent.and with using of keys consist of "j,f,z" item go forward ,go back and jump. According gravity when item jump should fall.for this purpose i call down function .but item just...

The component which motioned with KeyListener moves only to middle

25 Jul 2015 by Reacher7490

The component which is motioned with KeyListener moves only to the middle of the Frame (it moves further than the middle but it visually freezes there)I can't find my mistake.http://www.pic-upload.de/view-27797032/java_fail.jpg.html[^]This is my Code:package learning;import...

Simulate keystrokes on OSX using mono

31 Aug 2015 by mikos7

I'm porting a .net app to OSX using mono and things were going great. But right now I'm struggling with simulating keystrokes on OSX.The app is a console application that uses a barcode scanner. The scanned barcode is used to lookup information about products which is inputted into the...

How to stop repeating of a function when triggered by keypress in javascript?

6 Jul 2016 by Member 12621887

I've got a piece of code that detects when certain keys are pressed then triggers a function, but the function repeats after triggered, with any key pressed. I've tried to reset the array at the end of the function, but this stops all keys from triggering the function in the first place. ...

How to stop repeating of a function when triggered by keypress in javascript?

6 Jul 2016 by Peter Leow

Make 2 changes:1. Changemap[e.keyCode]tokey[e.keyCode]2. Changekey[];tokey = [];

Please help with converting code from Python to C# and some additional help

15 Dec 2016 by Member 12904911

Hi all. I am trying to write simple c# program,but all tutorials and snippets on the net doesn't work for me(I have only very basic knowledge of C#). I come to you guys for help if possible please. What I am trying to do is send some keystroke to application in the background (The rest of...

Please help with converting code from Python to C# and some additional help

15 Dec 2016 by johannesnestler

So what? the Code you showed has 3 Windows-API Calls that are exactly the same called by C# (for C# is's a call over Platform-Invoke (PInvoke) - the same you do in Python. Than you have one .NET call to System.Threading.Thread.Sleep(Milliseconds).In the time you wrote all the ... comments here...

Why C# webbrowser control gets jquery keydown event and not keypress until manual clicking control?

19 Jan 2017 by tomwg12345

I can come up with sample code if needed, but haven't done that yet.In summary though I'm very confused how my setting up a global hotkey in C# / .NET code (using pinvoke win32 calls) that when triggered opens a form that has just a webbrowser control + calls (in forms _Load()...

WebBrowserControl

How to focus on cell by typing charachters in datagridview C#

7 Jul 2017 by Member Albert

I want to focus on cell which contains pressed characters. Assume datagridview which contains two column Name and Address. Now in Name column there is lot of records Like Nims, john, kan, rocks, rita, etc... Now if I am entering character 'K','A','N' then cell will be focus on kan. I have...

How to focus on cell by typing charachters in datagridview C#

7 Jul 2017 by RickZeeland

You can define a public variable to hold the typed characters and use that in your dataGridView1_KeyPress(). For KeyCodes see: Keys Enumeration (System.Windows.Forms)[^] public string typedChars = string.Empty; private void dataGridView1_KeyPress(object sender, KeyPressEventArgs e) { ...

How to focus on cell by typing charachters in datagridview C#

7 Jul 2017 by RickZeeland

Another option would be to use LINQ wildcard search, here is an example: C# - Wildcard Search Using LINQ[^]

How do I use keypress event and put a grapth on the same form in C#?

26 Sep 2017 by Member 13416055

I'm new in C# and I'm creating an aplication that can do a chart and also use the key event in the same form. But when I run the application the keyevent doesn't work,I do not know why is not working. I will really appreciate any help to solve my question, thank you! What I have tried: using...

C# calling/holding/releasing keys ( not working on game controls)

1 Dec 2018 by Thaana Paana

The following code holds keys and releases it [DllImport("user32.dll", SetLastError = true)] static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo); public const int KEYEVENTF_KEYUP = 0x02; public const int VK_W = 0x57; private void...

InputManager library - Track user input and simulate input (mouse and keyboard)

13 Oct 2010 by shynet

A library that contains classes to simulate user input and track user input (mouse and keyboard), in C# and VB.NET.

Combining Raw Input and keyboard Hook to selectively block input from multiple keyboards

27 Jan 2014 by Vít Blecha

How to combine the Raw Input and keyboard Hook APIs, and use them to selectively block input from only some keyboards.

A Software Virtual Keyboard for Your WPF Apps

25 Jul 2014 by JamesHurst

Walks through the creation of an on-screen virtual keyboard for entering non-ASCII chars

custom-controls

Graphical BinaryTrees

7 Oct 2018 by Mojtaba Hosseini

A graphical binary tree. Features: add, remove, or search for a node. Recursive algorithm has been used

IntelliSense TextBox in C#

3 Mar 2014 by Anand Gunasekaran

Auto Word Completion for Multiline Textbox (Minimal Intellisense)

Attach Event to all the TextBoxes in a WebPage

24 Apr 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Inspired by a question, I am blogging about a simple technique to attach KeyPress Event to all the TextBoxes of a WebPage.

web_development

Cancel GridView Edit on Escape Key Press

20 Mar 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

This is one interesting research resulting a Trick to Cancel the GridView Editing Mode, when you press the Escape Key. Many guys asked this question in forums and those are still unanswered.

Handling Back Button Press in an Activity Called For Result

26 Jun 2015 by JainGirish

Understanding Android activities handling of back key press - some useful tips to avoid unexpected results or app crash

IntelliSense TextBox in C#

10 Mar 2014 by Alain Peralta

This is an alternative for "IntelliSense TextBox in C#"

How to handle and use event of simultaneously pressed two or more keys in C# - WASD keyboard game controls -

23 Oct 2016 by Perić Željko

Example of handling multiple key press event

Serial Number Paster

9 Aug 2012 by ray pixar, Y.Maryam

A tool to past segmented serial numbers automatically.

The Kinect Mouse Controller C#

2 Nov 2012 by Saad Mousliki

In this tip, I will describe how to implement a cursor controller in your project that use the Kinect to control the mouse of your PC.

how set keypress in form in c#

27 Jun 2011 by UJimbo

Good morning,Setthis.KeyPreview = true;on your form's constructor, or simply use the form designer and set the KeyPreview parameter to true.Then you can use the KeyPress, KeyDown or KeyUp events to handle keyboard input on the form.Take a look...