'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: [email protected] 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
1.转载 'This project needs a button Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long) Private Sub Command1_Click() 'KPD-Team 1998 'URL: http://www.allapi.net/ 'E-Mail: [email protected] Me.Caption = "Your system will sleep 5 sec." 'Sleep for 5000 milliseconds Sleep 5000 Me.Caption = "" End Sub Private Sub Form_Load() Me.Caption = "" Command1.Caption = "Sleep ..." End Sub2.dim Timer1 as timetimer1=time do until time-timer1>6 doevents loop
声明Api Public Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long Public Declare Function CreateEvent Lib "kernel32" Alias "CreateEventA" (ByVal lpEventAttributes As Long, ByVal bManualReset As Long, ByVal bInitialState As Long, ByVal lpName As String) As Long Public Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Longh=CreateEvent(,,,) '具体参数查msdn WaitingforsingleObject(h,10) closehandle h
sleep 会将进程挂起,不知道有没有人注意 VB 中一个很有用的对象 Timer以下是用它写的一个延时函数,精确到毫秒,它不会挂起进程:Public Sub Delay(mSec As Long) On Error GoTo ShowErr
Dim TStart As Single
TStart = Timer
While (Timer - TStart) < (mSec / 1000) DoEvents Wend Exit Sub ShowErr: MsgBox Err.Source & "------" & Err.Description Exit SubEnd Sub
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: [email protected]
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
'This project needs a button
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Private Sub Command1_Click()
'KPD-Team 1998
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Me.Caption = "Your system will sleep 5 sec."
'Sleep for 5000 milliseconds
Sleep 5000
Me.Caption = ""
End Sub
Private Sub Form_Load()
Me.Caption = ""
Command1.Caption = "Sleep ..."
End Sub2.dim Timer1 as timetimer1=time
do until time-timer1>6
doevents
loop
Public Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
Public Declare Function CreateEvent Lib "kernel32" Alias "CreateEventA" (ByVal lpEventAttributes As Long, ByVal bManualReset As Long, ByVal bInitialState As Long, ByVal lpName As String) As Long
Public Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Longh=CreateEvent(,,,) '具体参数查msdn
WaitingforsingleObject(h,10)
closehandle h
On Error GoTo ShowErr
Dim TStart As Single
TStart = Timer
While (Timer - TStart) < (mSec / 1000)
DoEvents
Wend
Exit Sub
ShowErr:
MsgBox Err.Source & "------" & Err.Description
Exit SubEnd Sub