Build An Application For Which Need To Set Low-level Keyboard Hooks
Jun 28, 2010
I have been trying to build an application for which I need to set low-level keyboard hooks. I thing I am trying to accomplish is that when I press the key "a" I want windows to think I have pressed the key "b". But the problem I am facing is that when I press key "a" it produces "ab". I am providing my code below.Also I would like to know how to detect double and triple key presses (e.g. shift + a and ctrl + alt + b). [code]
View 2 Replies
ADVERTISEMENT
Dec 18, 2009
I'm writing a code to use it in a keyboard spy program , and I'm using hook techneque with this , but the problem is that : if I ForExamle clicked on Shift and number 2 it doesn't give me At (@), I want it to give me at (@) ..
[Code]....
View 5 Replies
Feb 26, 2009
I´m using the SetWindowsHookEx API to hook the keyboard, and it works, but when I get vkCode from the structKBDLLHOOKSTRUCT it gives me way too high numbers instead of the ASCII byte I expect to receive. Also, the numberchanges each time I press the same key, so obviously something is wrong. I´m on Windows XP 32 bits, VB 2008 Express, Net. Framework 3.5 SP2. This is the relevant code (condensed, will
View 3 Replies
Apr 16, 2010
i am trying to create a keyboard hook so when i type out something my app will pop up, regardless of which app has focus at the time.i coded this already in a form which then opens up a second form but now i trying to make it so my module opens first, and then it will open up my secondary form.but the issue i am having is when the module loads and starts the keyhooking, i get an error on the following code saying"Overflow Exception was unhandled, Arthmetic operation resulted in an overflow".[code]
View 1 Replies
Apr 1, 2012
I am creating an Excel add-in written in VB.NET. I would like to bind KeyDown and KeyUp events to the spreadsheet to record when the user presses and releases the arrow keys while navigating the spreadsheetIdeally, these events would be built into Excel alongside the native SheetActivate and SheetSelectionChange events, for example. Alas, they are not.
View 1 Replies
May 3, 2009
I have a program that uses low-level keyboard hooks, because it's a program that needs to be able to catch keystrokes, even when holding down capslock or what so ever.
Anyway, I figured out (by making a sample program running at the same time on purpose consuming 95% CPU by making an infinite loop with nothing in it) that low-level keyboard hooks stops working if the CPU usage is that high, and you do a lot of typing what so ever.
View 10 Replies
Mar 3, 2010
I'm trying to build an application to monitor a site to build statistics from the data being read. This HTML looks like this.
<div id="history">
<h4>HISTORY</h4>
<table border="0" cellspacing="0" cellpadding="0">
[code]...
Now I can read the html and put the text anywhere, I just don't how to read specific parts so I can separate the data out.
View 17 Replies
Mar 7, 2009
I just created a simple application. I Builded that using build->build myapp. I got .exe of that application. i runned. all went fine. but when i closed that app, even after closing it is in memory. it is still running. how to deploy it properly?
View 12 Replies
Jun 9, 2011
how to write Mercurial hooks in a .NET language, including how to setup .hg/hgr
I have used the "Mercurial.Net" Api, but the information in the Windows environment variables is a bit limited and returning error messages on the standard error channel does not appear to work. I guess I am doing something wrong.
I am using .Net for a number of reasons , one being to link up with other systems using WFC
View 1 Replies
May 20, 2009
I need to write an application that works in background.I'm writing my application in vb .net, but I don't know how to intercept system hooks by using .net classes.I know that there are windows apis such as SetWindowsHookEx, etc, but I just wondering if there is a way to use .net classes or methods such as WndProc.I tried to use it, but it works only if the form has focus active. My application must work in background.
View 3 Replies
Feb 9, 2009
I have never written a hook before. Can anyone point me in the right direction of good tutorials to get starrted on hooks. I'm looking to write something so when a user right clicks on a file, they have an option to copy the path and filename of that file to the clipboard.
View 2 Replies
Apr 6, 2011
If I have a low level dll called low.dll. I then create another dll, say my.dll that references low.dll.
Now, if I create an application that references my.dll, I should not have to reference low.dll in the application correct?? This does not seem to be happening. The application will not compile as it cannot see low.dll, even though it does not access it directly.
View 8 Replies
Oct 26, 2009
How do you change an application level settings after compiling? I've searched Google and am at a loss. I've tried modifying the APPNAME.config file in the deployment directory but it doesn't change the application level settings.
View 3 Replies
Apr 2, 2009
I was reading a couple of articles a while back which I think described a behaviour where you can, in a .net application (specifically VB.net), allow an exception to occur, and then handle it in some kind of application-level exception handler, as opposed to within a Try/Catch block. My google-fu is weak at the moment, so I'm not having much luck guessing what this feature is called in order to find information about it.
[Code]...
View 5 Replies
Jul 10, 2009
I need to store a value globally (application level). This is part ID retreval program, procedure will return teh Max ID number thena i need to store the retreved value gloablly, so that if the user open many intance of teh same form i can use the gloabl value, to send Unique ID numbers to each form.
View 4 Replies
Feb 25, 2011
To make this short and simple, I'm developing a program that goes full screen but cannot allow the user to close or Alt-Tab out of it. The program is responsible for giving out tests that teachers create for various students and, to deter cheating, I was going to have the program block attempts to close it (I have that figured out already) and stop Alt-Tabbing out of it.
I looked up SetWindowsHookEx, but I was never good with PInvoke's and my attempts to get it to work have resulted in nothing.
This is my current
<DllImport("user32.dll", SetLastError:=True)> _
Private Shared Function SetWindowsHookEx(ByVal hookType As HookType, ByVal lpfn As HookProc, ByVal hMod As IntPtr, ByVal dwThreadId As UInteger) As IntPtr
[Code].....
View 1 Replies
Jun 22, 2010
I am creating a application for a touch screen computer/till of course, this means that I have to make a keyboard in my application so you don't have to mess around getting the keyboard out. I have multiple textbox's on my application and would like to know how to make the keys type into the textbox that is focused.[code]At the moment I was using this but this only puts the letters into the NameTextbox and also the NameTextbox doesn't appear to be focused.How would I get the keys to type into the textbox that is focused?
View 12 Replies
Jul 13, 2011
I bet someone already asked this but i cant seem to find it. Ok i need is a global settings that can be updated which will affect all users. I was using xml files in the program filestill now and I need to get around using this because the files can be delete or over written incorrectly. I started using the settings option and realized application level is read only and i cannot use user scope because then it wont be global settings. Is there an alternative to this.
View 5 Replies
Feb 8, 2011
I was surfing the next to get some of the powerful elements that .NET has over other langauges when it comes to VB.NET and I was told to learn delphi.
Since this is a VB.NET forum I was hoping you guys could tell me why I should stick with VB.NET over a language like delphi.
View 6 Replies
Aug 16, 2011
I have a program that I would like to create application-level MouseEnter and MouseLeave events for. Basically I have an app that I'd like to leave open that would be very opaque when not in use, and when the user moves the mouse anywhere within the bounds of the application, it becomes solid, and when they move their mouse away from the application, it becomes opaque again.
The obvious problem is that MouseEnter and MouseLeave are control-specific and so they fire every time you move over a button or menu or whatever, so Leave and Enter are constantly firing even though you haven't "left" or "entered" the application.
So, is there any way to create mouse events that only fire at the application level?
View 12 Replies
Jul 5, 2010
been banging my head on this, i need to get the applications path, then go up 1 folder then into another. As i have a main app and sub apps.
So were Application.StartupPath()is for example:"C: Main app folderSub app folder"How do i then go up a folder to"C: Main app folder"I Know it needs some string removal using on it but i can seem to get it right, after which i could then use Application.StartupPath() 'string removal here" & " ools"to navigate to another sub apps folder etc.
View 8 Replies
Sep 12, 2011
I'm trying to hook the keyboard to make some action when I'm running a DirectX application. I want to press some keys like "F2" or "pagedown" when I'm running dx app and see msgbox appears. Can anyone show me the code?
View 1 Replies
Sep 21, 2010
How to add application level error handler in vb.net win forms
View 1 Replies
Jan 19, 2010
I have a table, lets call it Objects. It has a predefined set of records looking like this:
ObjectId ObjectName
1 Salmon
2 Trout
3 Seabass
4 Shark
Etc..
So, this I would like to implement somehow as an enum. But what's the best way, implement it in the database creating tables for it or in the application logic in an CommonEnums codebehind file etc?
View 2 Replies
Jan 22, 2010
Im coding an application that will remotly control the mouse and the keyboard.For the mouse i found this and converted it to vb.net:[code]
View 4 Replies
Jan 26, 2011
How to filter inputs from keyboard in all windows applications while our written code is running and lives in notification area
it's like: user opens our application, now when typing in for example MS Word, when he types "s" it is said in our code to filter "s" and change it to "M" so if he press "s" on keyboard, "M" is typed in MS Word document.
View 1 Replies
Apr 28, 2009
to get keyboard presskey values out of the application in vb.net 2005. I try form keydown event that is working in Application Active.
View 2 Replies
Apr 5, 2009
I amtrying to send ALT + 1 Key to the active application but the problem i am having is when i use SendKeys.SendWait("%1") the program ignores the alt key and jsut enters the 1. is there a way i can get this done?
View 11 Replies
Dec 10, 2009
I want to make a simple program like On-Screen keyboard to send a certain text - www.google.com - to any application like address bar in IE or Run window or any textbox in registration form .I searched the forum here and all answers about using the API window name function . or using the Timer control and that doesn't help .
View 2 Replies
Aug 17, 2010
I am trying to develop an application for POS.I have designed a on screen keyboard.I am trying to make this keyboard more like real keyboard, I mean keys to be more 3d like real keyboard but I find limitations in VB .Net button control.
View 3 Replies
