Simulate A Key Being Pressed Or Held Down On The Keyboard?
Feb 2, 2010
I know how to send keys using Sendkeys.Send("{RIGHT}") I even know how to use Send keys In a timer, to repeat the key press... But it's just a key press, and it lets the key up. So If I tried to put sendkeys.send("{RIGHT}") under a Timer, then it will press/release the Right Key. I don't want that. I want to HOLD THE KEY DOWN. Here's Some Code, that I know how to do that Simulates a Mouse Click, Left Down, AND Left Up. Mouse Click. Ok...? So here's some example code of how to Send a simulated Mouse Click.
EXTREMELY EASY, BUT EXTREMELY POWERFUL CODE. Simulated Mouse Clicking.
Public Class Form1
'To allow to detect keyPresses. latter on in your code.
Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer
[code]....
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Sep 5, 2011
Well i've been trying to make something run with a lot less code(and faster) but it seems with SendKeys some things are getting lost(or discarded) by the program, its only the arrow keys as I try & make it complete a pre-defined maze to see how fast it can be completed.
If I use SendKeys("RIGHT 8") for example the maze usually only moves a few times, sometimes maybe only 1.
Also I looked up how to hold a key down/simulate it but it's not working for the arrow keys(untested on other keys).
The only way i've made it work is delays, decently delayed like 200ms & it's a huge maze but if i hold a key manually I can go much faster yet sendkeys method can't go that fast using individual presses this is why I want to simulate a holding down action.
---it must be working xample code I can make it work for my purpose if it works like on button click, etc....but I tried copying full (supposedly working) codes before & they never worked for me/my key, xample cause i've looked & tried hard(with only failing results).
MORE INFO:Also I tried SendKeys.SendWait() which is meant to wait for keystrokes to be processed & that didn't help either so my best guess is the keystrokes are processed but discarded(like a movement delay code that doesn't queue movements but rather ignores extra movements)
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Mar 21, 2010
I wanna set up a panel, that will, when opend up will sit on the side of the screen. It will consist of around 8 or so large buttons each with a different name on them. When the buttons are clicked on they will send the keys Ctrl+shift+F9 for example. Each different button will have a different variation of keys that it will automaticly send. The idea behind this is that I will have another program running that will be se up to perform actions when certain keys are pressed (Autohotkey if your familiar).
Now I'll be honest, I dont have a clue with visual basic, or any code other than html, hence why I'm posting here hoping I can get some help. Can anyone provide me with some information on how to set up buttons or how to do this entire task?
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Jan 15, 2009
How can I simulate a keyboard button click.For example how can I simulate the button 8 and 9 in another program outside my project form?
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Apr 15, 2012
been given a key ID, say 76.I need my application to be able to press the button on the keyboard that has that ID, in this case "L".How can I do this?I have tried around with another function that returned really weird results.
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Sep 29, 2008
I have a project, in which a user can click a button- even if he's using different program- that button in the program will simulate a keyboard shortcut and and use it in that current program he's using.
[Code]....
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Dec 9, 2011
I wish to send a string held in a var to an IP address and Port number both also held in vars. I also wish to listen to a signals coming in on a particular port number so when particular strings are received I can trigger other transmissions.
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Nov 7, 2010
This may sound like a dumb question but I need to know. I know you can tell which keys are pressed on the keyboard but I like to know if I can do something.Ok, heres what I am trying to do. A user is in another program that is max on the screen. He has to press Print Screen to take a screenshot, but he got to min the screen he is in to paste the screenshot into paint. This causes slow loads on maxing that screen and sometimes crashs of the program. I already got the code done to check when the program is running and to capture the screenshot and save it. What I to do now is, find out while in the other program with my program running in the background, if the user has pushed the Print Screen button.
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Mar 3, 2012
I have a few problems with my VB.NET project. I am making an application that should track every key inputted by the user. This may sound scarily like a keylogger, but it is intended for statistics purpose only. All data is stored on the client's computer and will not be sent anywhere on a network or the Internet.
The problem is actually figuring whether or not a key is pressed globally. That means, not in a KeyDown, KeyUp or KeyPress event. Let's say if the user inputs anything in Microsoft Word, my application will notice.
I have already tried this code. It gives PInvokeStackImbalance errors in the MDA. It has actually worked out for another application I am making, until I figured the severity of this error.
Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vkey As Long) As Integer
Private Sub CAKS(ByVal Key As Long)
Dim WasBeingHeld As Boolean = False
[Code]....
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Jun 21, 2010
What I'm trying to do is get the form to catch any key on the keyboard that has been pressed so it will reset a timer?
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Jun 4, 2010
i am trying to create a programme whereby when a hotkey is pressed, a keyboard key spams automatically .for e.g , i press F10 and the letter "Z" spams..i know i need to add in a timer , and I added two buttons for the function of start and stop . after that , i added in the hotkeys and then i am stuck in adding the code for the automatic spamming of the particular keyboard letter.i found out how but it is only when i click a textbox then it would spam . here is my code. i need it to work in a certain game . like auto loot [code]
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Jul 24, 2009
I am developing a software for musical trainning. By now, the user can only use the keyboard of PC. I want use also a music keyboard/digital piano.There is a code that get information of what key was pressed? For example: the user press the B note (not the letter B), and the software recognize this. Remember: I am not talking about PC keyboard, I am talking about music keyboard.
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Aug 13, 2011
My computer is set for lets say a 15 minute begore the screensaver and passwork have to be re-entered.Is there a way using VB to simulate a keypress or mouse movement if no key was pressed or mouse moved within the 15 minutes?
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Aug 14, 2008
How can I set a button, so that when it is pressed, it stays in the pressed down graphic state. Then when pressed again it returns to the normal not-pressed visual.Make a button stay like this until pressed again: url....
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Oct 17, 2011
I have a TextBox and set the MiltiLine property to true and AcceptsTab property to false.When the TextBox has focus and i press Tab it works fine and the next control get the focus, but when i press Ctrl+Tab it works as if AcceptsTab property is set to true and makes a tab character into the TextBox.The reason i press Ctrl+Tab.. when switching between forms in my MDI application.Now how to make a Ctrl+Tab when pressed works like Tab when pressed in a MultiLine TextBox?
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Feb 6, 2011
I have a sim card reader, that is a usb-to serial device. It has a sim card inserted. what i need to do is access that sim card to get the data, phonebook and sms for example. I CAN connect to the reader but i cannot send any commands or recieve any data.
What are the commands i could use to access data held on the device. The chipset is pl-2303
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Jul 6, 2009
I can't seem to get a single form that is held in a dictionary(of integer, <Form>) to create instances passed 229 times.
For instance i can only open 229 instances of the same form. I open and close the form. So technically i open 229 forms and close 228. Any forms opened afterwards give a win32 exception. I clear the the dictionary key upon form close.
I have changed the dictionary declaration to (of long) but get the same issue.
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Apr 27, 2009
I have a little problem with my program, Boot Animation Previewer.Firstly, it loads the .zip file and extracts the boot animation in a folder called Temp. If there are existing files in the Temp folder it deletes them. But, once the boot animation is previewed, you can't select another boot animation, until you restart the application, because it gives an error, saying that the program can't delete the images, because the process is using them
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Mar 9, 2012
I need to run an If Statement that will check a few conditions.
Basically I want to get it to check a value held in a variable "Temperature" and if the value is within "1" eaither way i.e. +-1 of the value held within the variable to then to output a text string to Label200.Text Else if the condition is not met then out put another text string to Label200.Text.
Example:
Say if Temperature value held in the variable Temperature is 8.5 the if statement checks to see if the DewPoint value is "between" +-1 of the temperature value. i.e. 7.5 to 9.5 as well as the value in Humidity is equal to or greater than 90 and Pressure is Less than or Equal to 1013.25 then the conditon is met, else the conditon is not met.
I have put some code together below in NotePad++ to see if what I am trying to do is the correct way to go about it (note I have not yet tried this code in VB.NET as I don't have it at work).
pass comment on the code and if it is wrong explain what I should do to get it to work.
Dim DewPoint as Single
Dim Temperature as Single
Dim Humidity as Single
[Code]....
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Jun 24, 2011
I have aproblem with WebBrowser Naviagtion.I would like to navigate to URL that is held as a String in an Array...IF RadioButton.Checked Then WebBrowser. Navigate (Array(0, 0))
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Jan 24, 2010
I am writing a VB.NET application which needs to extract data from an XML document. The Dataset.ReadXML function would be suitable, if the XML document was held in a disk file. However I would prefer the XML document to be passed via a string property of my class object, not as a disk file.
Is there a way to make the ReadXML function take its input from a string instead of a file ? If not, are there other functions which can be made to parse XML which is held as a string.?
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Aug 1, 2011
Firstly, it loads the .zip file and extracts the boot animation in a folder called Temp. If there are existing files in the Temp folder it deletes them. But, once the boot animation is previewed, you can't select another boot animation, until you restart the application, because it gives an error, saying that the program can't delete the images, because the process is using them.
My question is: how to stop using the images? I've tried to dispose the form that loads the .zip file, but with no success.
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Nov 21, 2011
I'm trying to Export a RDLC report into a PDF file and email it as an attachment with the click of a button.
My issue is that I get A required privilege is not held by the client error in the following code.
On this line Dim fs As New FileStream("C:\TEST", FileMode.Create)
I Have Administrator Privileged on a Vista Machine.
Dim warnings As Warning() = Nothing
Dim streamids As String() = Nothing
Dim mimeType As String = Nothing
[Code]....
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Oct 13, 2011
suppose I have variables named A1, A2, A3 ... B1, B2, B3 ... Z97, Z98, Z99. I have a certain operation I want to do using each one in turn. I CAN write a line of code for every single variable, but this will get pretty tedious. I'd prefer it if I can make a function that takes the letter and the number as arguments. So, if it gets the arguments "E" and "10" it will perform the operation on variable E10. What is the syntax for this? say a simple operation such as: result = E10 * 3 Is the syntax any different if I use constants instead of variables?
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Feb 8, 2012
I have a number of files that are generated in a function defined as:[code]These files are immediately printed and the files are automatically saved to a directory; the files themselves are not for use by the actual software users. I timestamp the files to keep them uniquely identified for auditing purposes.I've now received a requirement to email some of these files externally to the company, and someone has complained that the current filenames are not user-friendly.So, I tried copying the generated file to a temp directory, with a friendlier name, emailing the friendlier file, then deleting it, leaving my audit trail intact, like so: [code]This throws a System.IO.IOException on the line System. IO.File. Delete (friendly FilePath) because the file is still in use, after it has been emailed.I've taken out the email code, which makes the copying and deleting work fine, so it's apparently attaching the file to the email which causes the problem.I've also tried breakpointing before the delete line, waiting five minutes, confirming the email has been sent, then advancing the code, but the same exception is still thrown.
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Feb 24, 2009
I'm trying to make a database program in VB 2008 and have come across a problem with a query that I'm not sure how to solve. I have a combo box which contains names of teams that are held within the database, when a team name is selected I have 4 queries that will separate players (in that team) by their position, using this information I will then be able to display information about the players in a collection objects so that it can be edited and what not.
My problem is that I need to be able to refer to the records in the query so that I can assign a players details to objects on the form, I've used a piece of code to do so that I used previously to select individual records from a table, however when I click on a team in the combo box it throws up the error: "Could not format node 'ClientQuery' for execution as SQL.". Not being a particularly experienced VB programmer this error doesn't exactly mean too much to me, although I am not exactly sure of another way to tackle the problem.
The code for this query is:
Dim GK(3, 2) As String
Dim c As Integer = 0
For Each Record In GoalkeeperQuery
[CODE]...
All the fields in the query are strings. If this is not enough information I can post the query I used to select the records in the query used above or anything else that's related.
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Sep 10, 2011
I am trying to implemented a custom dragging operation to sort panels.
I assign an object to a variable in the MouseDown event and track it's relative position by examining the MouseMove event of the neighbouring panels as I drag the mouse over them.[code]...
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Sep 2, 2011
I have a picturebox set to move when the arrow keys are pressed. How do I prevent it from continously moving if the arrow key is HELD DOWN. I want to make it so the user has to press the key each time manually to move the picturebox.
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Oct 13, 2010
I have created a virtual keyboard like the "Windows onscreen keyboard". So, I have used the method sendkeys.But if I click on the button, it doesn't write nothing.
I think I have a problem with the FOCUS.As you can see, the "Windows onscreen keyboard" is always on top.This doesn't happen to my form. How can I do?
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Feb 27, 2012
how to create a program that can access information held in an excel database and show it in a simple form.
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