如何得到numlock的状态?

[juit]

如题!

[lxcc]

添加一个statusbar，然后调整某个panel的样式为2 sbrNum，可以看到numlock的状态

[liul17]

正如楼上所说，若不想看到StatusBar可将其隐藏

[射天狼]

呵呵,好快啊,同意楼上.

[juit]

我想利用函数得到,因为我不能改界面.

[liul17]

不过你也可以通过API函娄 GetKeyState 来实现,我没有用过你试试,但可给你个例子,不知是否有用
这个函数的帮助在此

Declare Function GetKeyState Lib "user32" Alias "GetKeyState" (ByVal nVirtKey As Long) As Integer
说明
针对已处理过的按键，在最近一次输入信息时，判断指定虚拟键的状态
返回值
Integer，如开关键打开，则位0设为1（开关键包括CapsLock， NumLock，ScrollLock）；如某个键当时正处于按下状态，则位15为1；如已经抬起，则为0
参数表
参数 类型及说明
nVirtKey Long，欲测试的虚拟键键码。对字母、数字字符（A-Z、a-z、0-9），用它们实际的ASCII值





'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()
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

[juit]

谢谢楼上几位!

[lxcc]

Private Declare Function GetKeyState Lib "user32" (ByVal nVirtKey As Long) As Integer


Private Sub Command1_Click()
MsgBox "Numlock" & CBool(GetKeyState(vbKeyNumlock) And 1)
End Sub