C# :: Capture Keystrokes (e.g., Function Keys) While A Messagebox Is Up?

Jun 15, 2010

We have a large WinForms app, and there is a built-in bug reporting system that can be activated during testing via the F5 Key. I am capturing the F5 key with .Net's PreFilterMessage system. This works fine on the main forms, modal dialog boxes,etc.Unfortunately, the program also displays windows messageboxes when it needs to. When there is a bug with that, e.g., wrong text in the messagebox or it shouldn't be there, the messagefilter isn't executed at all when the messagebox is up! I realize I could fix it by either rewriting my own messagebox routine, or kicking off a separate thread that polls GetAsyncKeyState and calls the error reporter from there. However I was hoping for a method that was less of a hack. Here's code that manifests the problem:

Public Class Form1
Implements IMessageFilter
Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles

[code]....

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.net: Capture Function Keys F1?

Jan 7, 2011

I cannot capture the function keys F1..F12 for my application. I am able to capture regular keys and modifiers such as shift, ctrl, alt, etc.This question recommends KeyPreview = True, however that does not seem to work for my application. What am I doing wrong?

[Code]...

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Capture Function Keys Even If Minimized

Apr 5, 2012

i need to capture function keys even if form is minimised. how can i do it? i tried many tutorials for key hook etc etc. but none work

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Capture (keystrokes) Instant Messages Of Msn Live Messenger In .net?

Jun 20, 2011

How to captures instant messeges of msn in vb.net windows application. or how to captures the live chatting of msn in vb.net windows application

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Wpf - Shortcut Keys Not Working After Messagebox Is Shown?

Apr 29, 2011

I have a Window with Keybindings in InputBindings defined. They work the first time and when i set the focus on any control on the form.But when a Messagbox is shown and I press "OK" they shortcut keys don't work until I set the focus on a control in my window.

My InputBindings:

<Window.InputBindings>
<KeyBinding Gesture="Ctrl+N" Command="{x:Static local:MainWindow.NewMenuCommand}" />
<KeyBinding Gesture="Ctrl+O" Command="{x:Static local:MainWindow.OpenMenuCommand}" />

[code]...

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Capture Keys In Inputbox?

Jul 30, 2011

I'm making a key mapper in VB 2010, trying to capture keys pressed in the input box (tab, escape, backspace, space, caps, shift, ctrl, mwheelup, mwheeldown etc... non-alphanumeric keys).

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Yes/No Function In A Messagebox?

Feb 7, 2012

I want to add a yes/no function to a message box (Are you sure you want to exit?) in InfoPath 2007. If the user clicks 'Yes' the InfoPath form closes, if no, then the user is taken back to the form. From what I have read this will not happen in InfoPath. So, I added a new windows form that has the Yes/No buttons.

For the 'No' button, I have (me.close) which closes the windows form and the user is left with the InfoPath form. when the user clicks 'Yes' meaning they want to close the windows form AND the InfoPath form. Below is my code so far.

Imports Microsoft.Office.InfoPath
Imports System
Imports System.Xml
Imports System.Xml.XPath

[Code]....

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Handle Things In Messagebox In If Else Function?

Feb 2, 2010

how can i handle things in messagebox in if else function

for example

MsgBox("Are you sure you want to exit?", MsgBoxStyle.OkCancel)
if==ok
exit sub

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Messagebox In Longdate Format Using Formatdatetime Function

May 29, 2012

In my Windows Form I have a textbox for number of days to add and a textbox that has a date in it... On the button click event I need to use the "DateAdd" function to add the number of days in textbox number of days to the date entered in textxbox date? Can someone give me the correct syntax I have tried this and getting a syntax error. DateAdd(DateInterval.Day, txtNumDaysTAdd.Text, txtDate.Text)I than need to display the answer in a messagebox in the Longdate format using the formatdatetime function.

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VS 2010 - VB 2010 - Automation - Function For Accepting The Keystrokes

Sep 13, 2011

I am creating a VB 2010 program that lets your select the program(s) you want to install (chkbox) and hit run. Then have it launch the installer ( the file is across the server) and accept the predefined keystrokes to proceed through the installation process. Afterwards, it starts the next install. Below is the code that I have. What i cant get to function is the unit accepting the keystrokes, its almost as if it wont take focus ( even when i have used Appactivate and threading.thread.sleep). I have even gone so far as to identify it as a process to manipulate the thread. To be honest, i'm at a loss and need any help at all. The final sub that contains "btntest" is where I am at currently in my attempts. [Code]

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Getting The Floating Function Keys?

Jan 10, 2010

I use IrfanView for screen capture.After activating it (making it ready) it is necessary to use Ctrl & F11 to invoke the actual screen capture selector.how I may achieve a "Floating Key" which would act in the same way as the Ctrl & F11 combination?

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Using Function Keys From MDI Form

Aug 5, 2010

I have a MDI form where I have a status bar at the bottom of the form. It has a literal representation of several Function Keys. When I first load the MDI form and press any of the function keys, they all work like they're supposed to. However, if I have a Child form active and then try and press one of the function keys...nothing happens. What do I need to do to overcome that?

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Using Function To Send Two Keys Together

Jun 12, 2011

I want to know how to send keys like ALT, Shift, Ctrl, Entre, etc. with the My.Computer.SendKeys() function. Also, I need a code with which I can send 2 keys together like Ctrl+C. Is it possible with SendKeys(). [I use Visual Basic Express 2008 and 2010].

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IDE :: Debugger F8 Step Into And Other Function Keys Not Working?

Sep 30, 2010

I've reviewed the other posts regarding this subject. I'm using VB from Excel and the function keys are not working. I'm running Windows Vista Home Premium with Office Ultimate 2007 Looks like Excel is running VB 6.5So, this used to work for me...I've used the debugger quite a bit. When I try the solutions suggested Tools->Options->Keyboard (after checking check-box to show all settings) when I click on the box just below "Apply the following additional keyboard scheme" the only item in the list is default. There is no selection for VB 6 or anything else for that matter.

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VS 2010 Send Keys Function Keeps Ctrl V

Jul 1, 2011

I have a loop that takes text from a richtexbox, and pasts it into a field on a html web form within a webbrowser control.When i run my code, it goes to where it copy/pastes the text, however it keeps doing this over and over and over and over again, it wont just copy and paste 1 time, and stop.[code]

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Function Keys Stop Working While Using Windows Media Player

Sep 29, 2011

I am developing a vb.net media application using Windows Media Player which is working fairly well. However, I am having problems where the Function key handler will stop working after doing anything on the media control panel, i.e. mute, move the slider etc. So long as I don't touch the panel everything continues to work. I'm using the function keys to pull up menus for selecting other media and if I do anything with the control panel I can no longer display the menus.

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MessageBox In Visual Basic Express 2010 Open Form3 From MessageBox?

Mar 28, 2011

From my login form, and when a correct Username and Password has been succesfull and I get a messageBox saying "welcome to your System" (Picture Below) and when I press the OK button in that MessageBox, I want to open Form3.do I add code to the Underlined code (below Picture), or Do I write a completley different code after the messageBox code.

[Code]...

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Game Programming :: Detecting Whether One Of The Arrow Keys Is Pressed, All The Other Keys Seem To Be Detected Apart From The Arrow Keys?

Oct 21, 2008

I have a problem detecting whether one of the arrow keys is pressed, all the other keys seem to be detected apart from the arrow keys??? I have set key preview to True........ It detects the arrrow keys BUT ONLY if I have NO other controls on the form??? example..

Me.Text = e.keycode

It works, but then if I add a button for example, it stops.

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Capture Sound - Using Mcisendstring Function But The Sound Quality, Is Poor?

Jun 20, 2011

I have a question about of capture sound function, someone have a code example for visual basic 2010 in windows 7?, I tried using mcisendstring function but the sound quality, is poor.

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Hot Keys VB 10 Express - Giving Auto Typer Hot Keys?

Jun 25, 2011

just wondering how i could give my auto typer hot keys, for example they press f1 to start the typer f2 to stop it.

[Code]...

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VS 2010 Shortcut Keys (KeyUp) E.Keys Combinations?

Mar 25, 2011

I'm trying to create a shortcut which expands or collapses my treeview using the ctrl+alt+up-arrow or ctrl+alt+down-arrow:

If Keys.ControlKey And e.KeyCode = Keys.Alt And e.KeyCode = Keys.Down Then
mytreeview.ExpandAll()
End If

[code].....

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Use The Send Keys Function To Send Text To Another Program?

Apr 29, 2009

I am trying to use the send keys function to send text to another program.I ahve gotten it al working well, except for using () as I know sendkeys doesnt like these.I have tried using the Replace function in several places in my code to replace the ( with {(} and {+0} etc, with various other options tried.But when I run the program, it seems to skip this out completly and leaves them in the string as (, and therefore it errors and wont run.When I step through it, it goes through the function but doesnt alter the strng as it should. This is the code to send the string and my attempt at making it replace the () in the module

Module TextReplacement
Private Declare Function GetAsyncKeyState Lib "user32.dll" (ByVal vKey As Int32) As Short
Dim counter As Integer
Dim sData() As String

[code]....

The error I get when i try send "Test :)" is: ArgumentExcveption was unhandled "SendKeys string 'Test :)' is not valid"

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Loop Through A List Of The Keys That Are Available In The 'Keys' Enumeration?

Jan 13, 2011

How could I loop through a list of the keys that are available in the 'Keys' enumeration? It seems like it should be something easy to do, but I'm not having any luck finding a collection that I can loop through.

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Packet Capture And Threading, Capture Library Waits For "thread Stop"

Apr 5, 2009

So I am hacking together an app which listens to traffic using SharpPcap library, it reconstructs the packets from sessions using the code from TpcRcon.

Listening and reconstructing part work on their own . What I want is on each packet arrival main window gets an event so it can display the packet , and when session is reconstructed display a complete packet (I am interested in HTTP ones) . -That is where it breaks with weird symptoms: for example right now it does not stop on invoking stop listening method - the sharppcap library function hangs there forever waiting on this line of code : m_pcapThreadEvent.WaitOne();//wait for the 'stopped' signal from thread

I also had it not working and crashing in sharppcap function because I had omitted one parameter in form delegate- which makes no sense, because form delegate does not deal with packet capture at all and only reacts on "New Packet" event from my "Listener" class (which is only there to notify main form)

My app starts as module main instancing class "Listener". MainForm has it
registered as friend with event and handles even "New Packet"

Main Form:
Private Sub uiListenStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btListenStart.Click
aLogger.AddMessage("Started Listening")

[Code]....

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How To Detect Keystrokes

Jul 3, 2011

I am fairly novice hobbyist developer. I am developing a simple calculator app. How can I detect the keystrokes, like when the user presses "1" key on numpad or they "1" key above Q key? I want to call the same subroutine that runs when the user click on the butten control "a "on calculator's main form.

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Cannot Send Keystrokes Via Sendkeys

Mar 25, 2009

Dim NotePadProcess As Process = New Process()
NotePadProcess .StartInfo.FileName = "notepad"
NotePadProcess .StartInfo.WindowStyle = ProcessWindowStyle.Normal

[Code].....

I am trying to send some keys to a program that I launched, but every time i send the keys focus is not on the program and the keys are sent to the wrong program. Is there a better way to send keys to a program or a way to set focus on a certain program?

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Counting Keystrokes And Clicks?

May 23, 2010

I'm trying to create an application similar to the site WhatPulse, which will generate an image with my clicks and keystrokes. WhatPulse only updates the image once every 24 hours, so I am going to make an application to keep track of that for me, only with realtime stats.

How can I count total keystrokes (outside of the application itself) as well as total clicks, in vb.net?

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Keystrokes Carry Over To Other Objects?

Sep 9, 2011

I am facing a problem in my code. I am working on an application in vb.net, its a windows based application. On one of my form I need to perform so many data driven operations.

if I press tab on one of the text box, I need to set a computed value in other text box and need to set the focus to that text box.

I write a code that is a like to this.

Private Sub TextBox1_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyUp
Select Case e.KeyCode

[Code]....

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Send Keystrokes In Program?

Jan 23, 2010

How to send keystrokes in v.net automatically ..

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Send Keystrokes To A Different Application?

Jul 26, 2009

I am using visual basic code, specifically the sendkeys.send method, to send keystrokes to a different application, in my case Acrobat Reader. Here is my problem. I am sending instructions and text to define a path to a file I want to open in Acrobat Reader. Every keystroke is being sent and interpreted in Reader correctly except the Colon. This is the line of code I am using:Sendkeys.send("C:")

I have tried every variation of this simple line of code I can think of, but the result is the same. Reader for some reason wants to interpret the Colon as Uppercase Q, so what I get is CQ. This of course totally messes up my path to the file I want to open.Sendkeys. sendwait("C:") Behaves the same

I understand there are timing issus with this method so I have added code to my app.config file suggested in this forum for taking care of the timing issue. I have also inserted delays into the execution of the program steps. Nothing I have done solves this problem.I wonder if anyone else has experienced this or a similar problem and if so what was done to correct it.

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