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I have a keylogger and it is detecting the key pressed.
but i want that the pressed key should not be processed to display on the screen what ever be the current application.
And How to have input-focus to my application.
Help me to solve these problems.......
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You're NOT going to use the normal form events for this, nor a timer.
You have to use a (Google for this "global keyboard hook".
Since you just admitted to making a keylogger, you're on your own from now on.
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Guys my aim is not to make a keylogger,i have to detect the ascii key pressed and block that keys from displaying and send my own characters to display.
But This keylogger detects only the key not the character.
with my minimized form i have to detect the ascii characters.How to do this?
I will explain What the exact process is to be done...
When I press any character in any editor the corresponding character should not be displayed on the screen(in other words Input Blocker) and instead of the blocked character i would like to disply my own characters.
i have to do this with my minimized form i.e when my form is in background and when it is closed the inputs should be displayed on the screen as i type.
help me guys plzzzzzzzz...............
modified 29-Oct-13 13:23pm.
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I already told you. If you're writing a keylogger, you're on your own.
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I am not writing a keylogger.Leave this keylogger topic.
I am asking help how to do the below process,help me for this......
When I press any character in any editor the corresponding character should not be displayed on the screen(in other words Input Blocker) and instead of the blocked character i would like to display my own characters in that editor.
i have to do this with my minimized form i.e when my form is in background and when it is closed the inputs should be displayed on the screen as i type.
How to do this process?
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how to place a number or a string in the registry.
and read that value from that place.
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Working with Windows Registry using VB.NET[^] - Sorry- Seems like someone else already pointed you there.
MSDN[^]
People becoming wiser in order to notice the stupid things they did back in the young days. This doesn't mean that they really stop doing those things. Wise people still do stupid things, only on purpose.
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I have Filewatcher services and after 300 files I am getting this error:
Too many changes at once in directory
how can I fix it?
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Try and put in meaningful filters in your file watcher code.
If you are monitoring every change, then you are going to run out of resources very quickly.
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i do have filtering however one a month we have a job which produce more then 300 files...
my filtering...
e.FullPath.ToUpper.IndexOf("~WRD") > -1 OrElse e.FullPath.ToUpper.IndexOf(".TMP")
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In that case you have to enlarge InternalBufferSize. It's default size is 4096 (4K). You must take your number of files to proceed (plus some) and multiply it by 16 (the size of each entry in the buffer); round it up to the next 1024 (1K) and set InternalBufferSize to it...
I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).
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Guys i would like to design a application that disables the keyboard.
when my application is opened or minimised the keyboard should not work and when i close it the keyboard should work as usually.How to do this?
Help Me Guys.........
PlZZZZ....
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Google for "global keyboard hook vb.net". All you do is not pass the key messgae to the next hook handler to disable the keyboare.
By the way, this does NOT work for disabling Ctrl-Alt-Del.
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I guess something like this piece of code[^] is what you want.
People becoming wiser in order to notice the stupid things they did back in the young days. This doesn't mean that they really stop doing those things. Wise people still do stupid things, only on purpose.
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Your piece of code is good And it works too but how to detect all the ascii values using this code........
For Example
How to detect Small "a",colon,braces etc.
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You have to change the following function:
Private Function HookCallback(ByVal nCode As Integer, ByVal wParam As IntPtr, ByVal lParam As IntPtr) As IntPtr
If nCode >= 0 AndAlso (wParam.ToInt32 = WM_KEYUP OrElse wParam.ToInt32 = WM_SYSKEYUP) Then
Dim vkCode As Integer = Marshal.ReadInt32(lParam)
If vkCode = Keys.PrintScreen Then
Dim data As IDataObject = Clipboard.GetDataObject()
If data.GetDataPresent(GetType(Bitmap)) Then
Me.BackgroundImage = DirectCast(data.GetData(GetType(Bitmap)), Bitmap)
End If
End If
End If
Return CallNextHookEx(hookID, nCode, wParam, lParam)
End Function
instead of "If vkCode == Keys.PrintScreen Then"... you have to check wether your application is active, and forward the pressed key to it.
People becoming wiser in order to notice the stupid things they did back in the young days. This doesn't mean that they really stop doing those things. Wise people still do stupid things, only on purpose.
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I dont know How to declare functions that reads ascii characters..........
can you give me example to find small "a".
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srinivasankrishnaa wrote: how to detect all the ascii values using this code.
Since you're repeating the question, I'll repeat the answer[^].
There's not a unique key for each character available; you'd need a keyboard with 255 keys if each character would need a unique key. There's no separate key for "A" and "a". You can map a virtual key to a character using below function;
[DllImport("user32.dll", CharSet=CharSet.Auto)]
internal static extern int MapVirtualKey(int uCode, int uMapType);
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
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I am developed a project in VB.NET and Database file is Inbuilt SQL server Database File In Visual Studio 2008.But I get error when open the created database "Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed" I Used Google to solve this problem but Cant Help Anymore.. So Please Give me solutions As Soon as Possible....
Thank you To All For Considerations.......
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This thread[^] has couple of solutions.
thatrajaNobody remains a virgin, Life screws everyone 
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Member 8134979 wrote: Didn't Get It..
Did you read that thread fully?
thatrajaNobody remains a virgin, Life screws everyone
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