I want to get key presses on my application. The problem is when I use API.UnhookWindowsHookEx and after sometime to restart hooking as follows, application does NOT gets the key presses anymore. [code]
View 1 RepliesI need a box to pop up, when a user presses "Close" It will then say "Are you sure you wish to close this program?"and give a Yes or No option. If Yes is pressed, it will close the application. If No is pressed, it will close the popup box and the program will remain running.
View 6 RepliesI am not able to find the Exclude Command in VB 2010 Express. I have no idea which version of Visual Studio it is working with. I've got one 217MB VB 2010 Express file and many 2008 VB Express files with one of them measuring 31 MB. There many other SQL files and .Net Files.
View 4 RepliesI have a basic three form application. It doesn't seem to close after navigating through forms. If I were to open the application, and the main form is displayed. If I press the X button, the application closes fine(Goes from processes) If I were to open the application, and then navigate from the main form to another form using me.hide & form1.show, and press the red X on Form1, the application again, closes fine.
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I have the requirement to create an application that has multiple front ends developed using Windows Forms, WPF, ASP and Compact Framework Mobile Forms.I would like to be able to create a series of obejct representing the business logic and have this logic accessible from the various front ends available. My first thought was to use remoting as I'd like to be able to pass the business objects back and forth between client and server but the compact framework doesn't support remoting and also transferring a full framework business object to a compact framework business object doesn't seem possible.My next thought was to use web services but again the passing of business objects seems to be very hard to accomplish. Without doing this I would have to create individual web methods for each business operation.
Finally my next option is to use sockets and write the whole client/server logic within some classes and expose them to the UI/Business layer. My only problem with this is it is not scaleable should the number of clients increase dramatically whereas using remoting or web services I can host the solution via ASP.Net.Does anybody have an ideas on the best way forward for this or even have any input on how they would write an application that required a windows form, wpf, asp website and mobile device GUI all of which want to use the same business logic?
I have a windows forms application written in VB.NET which scrapes information from serveral web pages (who doesn't right)? Anyway, I am having problem with one particular site where partway through the page navigation my application hangs. When I press pause (or break) in the debugger, it stops on a call to System.Windows.Forms.Application.DoEvents.
Resuming execution shows that it really is stuck on this line (it does not reach the next line of code). It also hangs about the same point each time I run it (at least its consistent). Since System.Windows.Forms.Application.DoEvents yields to other threads on the same processor and then resumes execution of the current thread, I think the problem is that some other thread is not behaving well (not returning from some event handling code). I thought Windows 7 was pre-emptive, which makes me
doubt that theory but I really don't know.
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The program scrapes somewhere between 12 and 14 pages before it gets stuck on the call to DoEvents. Does anyone have a clue why this would happen? Why would any call to DoEvents hang?
I am trying to use the System.Diagnostics.Process class.I have the following Windows Forms application. It consists of 1 Button and 1 TextBox. The only code is for the button click event as follows.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim myProcess As New Process()
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I have a fully functional multi-threaded VB2008 console application that I need to convert to a windows forms application. I am doing this to add additional functionality at a later time. How would I go about doing this?
View 9 Repliesmodify console application below to window form application for me.I've tried by myself for million times, but i couldn't console application.rar?
View 2 RepliesI am writing a program that expands the usage of the clipboard, but I need to tell when the user has either cut, copied, or pasted something so I can write code accordingly to that. I need to know how I can check to see when the user has entered a command like this.
View 2 RepliesI am trying to create an application that will enable me to type in my local language. For that I need to modify the key presses. For example when I press key A it should change it to ”. Also I would like to know how to detect double and triple key presses e.g. shift + W and ctrl + shift + J and remap them to a different character. Also I would like to know how to detect a text string like and replacing them with other string like member. I have found a code that modifies key. But when I tried to change key A to key B it produces AB. I am including the code below. Hope I have made myself clear.
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My boss gave me an MS Access application that was developed by our former colleague. He wants me to convert that application to VB.Net Windows form application. I went through the MS Access Application. It contains tables, queries, forms, reports and macros. I could not find the programming (Where is the code written in MS Access?). My boss wants the windows application to be same as the MS Access Application (both in design and logic). I don't how will i develop the windows form. How can I achieve this?
View 2 RepliesMy boss gave me an MS Access application that was developed by our former colleague. He wants me to convert that application to VB.Net Windows form application. I went through the MS Access Application. It contains tables, queries, forms, reports and macros. I could not find the programming (Where is the code written in MS Access?). My boss wants the windows application to be same as the MS Access Application (both in design and logic). I don't how will i develop the windows form.
View 4 RepliesI want to do a "code" that presses a button by ut self with help of a timer. [code\]...
View 4 RepliesI'm trying to work out how to detect if the user has pressed an f key I have this so far:
Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
Label1.Text = e.KeyChar
End Sub
This detects when the user presses a character key and outputs it via Label1.text, but it doesnt work on all keys?
I just finished building my robot and now I am trying to come up with the code that goes on the computer to control the dang thing. Right now I have a thread that constantly loops in a do until loop that will never be true. Inside that loop the program should check to see if the w,s,a, or d keys are pressed if they are then it finds out what key has been pressed and sends the appropriate value to the robot. If no key is pressed then it should send the stop value to the micro controller which halts the robot until a new key is pressed.This is the basic way that I thought the code should be constructed although this code DOES not work.
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code inside thread
Dim x as integer[code].....
I'm trying to capture two key presses in my VB.net application, for this example CTRL + B, the code below doesn't work but it does for single keys. I have tried setting keypreview as true but this has no effect. [Code]
View 5 RepliesI am trying to make a program that has a multiple key press activation such as ctrl+alt+g and then it would for example open a message box.I am also trying to use a MDI form as a windows 7 desktop like area.What I mean here is that i want to create a MDI form or any other form that supports locking child forms inside it.
View 4 RepliesI am looking for a way to send key presses to another program, Ive tried Sendkeys(), Keybd_event() , etc. is there a thrid party dll i could use? whatever i do it needs to be real low-level and totally undetectable.
View 6 RepliesI would like my webbrowser1 to press tabs. I used this code to press tabs:
SendKeys.Send("{TAB}")But it clicks tabs, where ever there is a focus on an object. I want it to press tab inside the webbrowser1 without have to have the program focused.
I am writing a function that should sound a beep every two seconds until the user either clicks the mouse or presses any key. The code I have written appears to work for the mouse click, but it ignores keystrokes:
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I file ComboBox_SelectionChangeCommitted event when a button pressed or form is loaded.
View 3 RepliesI have an assignment from school where the program is supposed to close when the user presses Alt X.
I have done this using Java but that was a long time ago and I can't remember how I did it. How do you do it in VB?[code]...
i know how to give the control + t command ( " SendKeys.Send("^t") ) and how to send the alt command ( "SendKeys.Send("%t") ) but how do i give a command that presses alt and ctrl and t in the same time?
View 8 RepliesI have a system with 26 buttons but the buttons actaully run the same code; aside from the fact that the index number is used to distinguish between them (es, I know index values are out so I am using the object's name (btnKey1, btnKey2, etc).
Is there any event that occurs for all button presses or do I need to write the same line for all 26 events (actually 52 since I am using MouseDown and MouseUp - will get worse when I want to use the keypress side)?
i want to make a message box appear when the user presses Alt k (then) Alt e (then) alt j . is this the correct code to use?:
Private Sub form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txt3.KeyDown
Dim intcount As Integer = 0
If e.Alt And e.KeyCode.ToString = "k" Then
intcount = intcount + 1
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I made a tic tac toe game. and i was wondering how would code it so that when a user presses a button or when a user wins it makes a beep or some kind of music
View 6 RepliesHow can I get the mouse and keyboard to simulate clicks and key presses from VB.net code?
View 8 RepliesI need to determine if a set of keys have been pressed in succession. For example, if I'm looking for this combination: Up, Up, Left, Space, then any key that inteferes with the order would start it over.
I tried doing a basic test to see if it would be as straight forward as I was hoping:
VB.NET
Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.Up Then
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For some reason, it doesn't let me continue the sequence. I put a MessageBox on the second "Up" and it triggered when I pressed it just once.
I have two forms and a button on the first form. What i want is when i click the button the second form to show and the first one to close. But this isn't working with: Form2.show() Me.close All the application is closing with the code above.
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