Capture Function Keys Even If Minimized
Apr 5, 2012i 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
View 2 Repliesi 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
View 2 RepliesI 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?
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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
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currently my VB Skills aren't so good so bare with me here. application to be able to send keystrokes to another without having it popup. Like it should remain minimized, it shouldn't interfere with whatever you are doing on your PC while it sends the strokes. I received this request from some one else to do. So basically I just need to get focus to the application while it remains minimized and send keystrokes.
View 4 RepliesI'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).
View 1 Repliesi want my program to understand what i push the key "+" for example and do something. i can write this "something" but i dont remember how to make it see when i push the keyboard keys (NOTICE: i want the program to see the keyboard keys even if the program is minimized and another program is maximized)
View 5 RepliesI 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?
View 4 RepliesI 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?
View 2 RepliesI 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].
View 3 RepliesI'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.
View 2 RepliesI 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]
View 1 RepliesI 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.
View 1 RepliesI 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.
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.
View 5 Repliesjust wondering how i could give my auto typer hot keys, for example they press f1 to start the typer f2 to stop it.
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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
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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
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The error I get when i try send "Test :)" is: ArgumentExcveption was unhandled "SendKeys string 'Test :)' is not valid"
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.
View 6 RepliesSo 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")
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So I found this little morpg. The game is fun but really repetitive. I would like to simplify some of the tasks in the game. I do not know how to start this project. How can I recored arrow keys and then tell the computer to enter the arrow keys? One of the objectives in the game is to run around a farm 2x and scare away any wolfs. So the commands would be "arrow key up" for 30sec and then "arrow key right" for 4 sec and repeat. I have worked with robots in real life for some time. We would fill arrays with such instructions. One of the most fun things to program! But I have no idea how to do this in VB.
View 12 RepliesI need to capture the left and right arrow keys in Form1.KeyDown event so I can use them as hot keys. Instead they seem to be assigned to tab order (move focus to previous/next control) and the KeyDown event never gets called. How can I remove the arrow keys from tab order and use them for my hot keys instead?
View 2 RepliesI want to be able to detect when the user presses F10 or Ctrl+F10 outside of my program, and upon receiving the key press, it will send text to whatever they currently have selected (e.g. a text box). How can this be accomplished in the simplest way?
View 3 RepliesI´ve got a Full Screen app witch launches other app and wait until it has been closed, when it detects that, the first application is launched again full sceen with this source code:
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I have small application which shows an alert in every 45 mins....( to take a break from work :) )..... It is a normal windows form with a timer in it and in every 45 mins I am invoking a message box. I am able to make it work but the problem is that when the application is minimized, the message box is not popping up, it stays with in the parent form (minimized). How can I bring it up to the user focus?
View 4 RepliesI am making an application that manages a MySQL DB on a server. Its working perfect and no errors...The problem is if I have the application opened and I do one of the followings:-Minimize the application-Change focus to another window like MyDocuments Folder, Internet Explorer or whatever I have opened.-It not only happens while in the VB.NET environment.Also to the final compiled executable.-Continue after verifying a variable with a Break Point (F9), just closes the application.-If I make the application form minimize through code it also closes the application (WindowState Minimized)
View 8 RepliesHow can I make something that closes the program if it's minimized?
View 11 RepliesCurrently I'm trying to create an Auto-Clicking program using VB via Visual Studio 2008. I bound hotkeys to start and stop the endless clicking loop, but I cannot find a simple way to make the program recognize or detect the hotkeys while the program is minimized.One that does not require over 9000 lines of code?
View 2 RepliesSo I made a program that is like a taskbar. (taskbar = Menustrip)
on runtime it gets all the apps and add there name and icon to the taskbar and when u click it I want to force it to restore itself so its no longer minimized.
For the click its probally something with CType, and I don't know much about the CType :(
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<DllImport("user32.dll", SetLastError:=True)> _
Private Shared Function SetActiveWindow(ByVal hWnd As IntPtr) As IntPtr
End Function
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I'm trying to make use of some functionality from an external app in my program.
My problem is this:
My program manages to start the external app correctly and I can even get the WinHandle correctly if I don't use "ProcessWindowStyle.Minimized" when starting the app.
If I start the app minimized, WinHandle = ProcID.MainWindowHandle returns a 0 and as I understand it, it's
because the app is hidden in the system tray.
How can I start the app minimized and then get the window's handle once it has been minimized?
I've tried various functions like FindWindow and BringWindowToTop but none of them seem to work.
Im doing a small project in visual basic which involves lighting up leds through the parallel port and turning them on and of. each led is controlled by a checkbox on my form and they only come on when the checkbox is checked i currently have this code
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