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December 7th, 2004, 11:08 PM
#1
Get all key pressed since Pc was turned on
is it possible to get the letters that have been typed? since the computer has been turned on? thanks in advanced
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December 8th, 2004, 05:42 PM
#2
Re: Get all key pressed since Pc was turned on
You could write to a file all key pressed since your program started and till
your program ended.
You will need a lot of free space on disk if Pc is not going to be turned off in a day
and there is a speedy typer at keyboard.
This example from api-guide should give you a push in the correct direction.
You might need to look also at a low level keyboard hook. Search in Codeguru,
you will find.
By the way: you will not be able tyo get what user types when logging in on
nt/2000/xp systems, even if your program is already started.
Code:
'In a module
Public Const DT_CENTER = &H1
Public Const DT_WORDBREAK = &H10
Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Declare Function DrawTextEx Lib "user32" Alias "DrawTextExA" (ByVal hDC As Long, ByVal lpsz As String, ByVal n As Long, lpRect As RECT, ByVal un As Long, ByVal lpDrawTextParams As Any) As Long
Declare Function SetTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long, ByVal uElapse As Long, ByVal lpTimerFunc As Long) As Long
Declare Function KillTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long) As Long
Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Long) As Integer
Declare Function SetRect Lib "user32" (lpRect As RECT, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long
Global Cnt As Long, sSave As String, sOld As String, Ret As String
Dim Tel As Long
Function GetPressedKey() As String
For Cnt = 32 To 128
'Get the keystate of a specified key
If GetAsyncKeyState(Cnt) <> 0 Then
GetPressedKey = Chr$(Cnt)
Exit For
End If
Next Cnt
End Function
Sub TimerProc(ByVal hwnd As Long, ByVal nIDEvent As Long, ByVal uElapse As Long, ByVal lpTimerFunc As Long)
Ret = GetPressedKey
If Ret <> sOld Then
sOld = Ret
sSave = sSave + sOld
End If
End Sub
'In a form
Private Sub Form_Load()
'KPD-Team 1999
'URL: http://www.allapi.net/
'E-Mail: KPDTeam@Allapi.net
Me.Caption = "Key Spy"
'Create an API-timer
SetTimer Me.hwnd, 0, 1, AddressOf TimerProc
End Sub
Private Sub Form_Paint()
Dim R As RECT
Const mStr = "Start this project, go to another application, type something, switch back to this application and unload the form. If you unload the form, a messagebox with all the typed keys will be shown."
'Clear the form
Me.Cls
'API uses pixels
Me.ScaleMode = vbPixels
'Set the rectangle's values
SetRect R, 0, 0, Me.ScaleWidth, Me.ScaleHeight
'Draw the text on the form
DrawTextEx Me.hDC, mStr, Len(mStr), R, DT_WORDBREAK Or DT_CENTER, ByVal 0&
End Sub
Private Sub Form_Resize()
Form_Paint
End Sub
Private Sub Form_Unload(Cancel As Integer)
'Kill our API-timer
KillTimer Me.hwnd, 0
'Show all the typed keys
MsgBox sSave
End Sub
...at present time, using mainly Net 4.0, Vs 2010
Special thanks to Lothar "the Great" Haensler, Chris Eastwood , dr_Michael, ClearCode, Iouri and
all the other wonderful people who made and make Codeguru a great place.
Come back soon, you Gurus.
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December 8th, 2004, 07:09 PM
#3
Re: Get all key pressed since Pc was turned on
how would i do that to save it to a text file? thanks alot!
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December 9th, 2004, 07:04 AM
#4
Re: Get all key pressed since Pc was turned on
you wouldnt bother.. you'd just download a "key logger" from a hacker site. most of them even tell you what the user did in terms of what windows were opened, switching between programs etc.. used for stealing passwords, creditcard information and other nice things that users type on their keybaords
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