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vbnet判断按键 vba检测按键

IT技术判断

求大神指点 vb.net 窗口怎么判断组合按键呢? 比如我组合的 alt f1 和多键组合呢控制键是个真假值vbnet判断按键，是evbnet判断按键的几个属性vbnet判断按键 ， 按vbnet判断按键了为真
VB.net程序如何在后台判断用户按了什么键？在窗体的on key press \ on key down事件里面判断，并根据你的限制条件决定是否show你的窗体
vb.net 怎么知道按下了多个按键用APIGetKeyboardState vbnet判断按键，判断所有vbnet判断按键的键里哪些被按下了 。
【vbnet判断按键 vba检测按键】下面的是判断键盘灯的状态
Public Class NativeMethods
Private Shared keyState() As Byte
DllImport("user32.dll") _
Private Shared Function GetKeyboardState(ByVal keyState() As Byte) As Boolean
End Function
Private Shared Sub Update()
keyState = New Byte(256) {}
Dim result As Boolean = GetKeyboardState(keyState)
' Check for error:
If result = False Then
Debug.WriteLine("GetKeyBoardState error: "Marshal.GetLastWin32Error)
Throw New Exception("GetKeyBoardState error: "Marshal.GetLastWin32Error)
End If
End Sub
Public Enum LightState
Off
[On]
End Enum
' Example - the keyboard lights...
Public Shared ReadOnly Property CapsLockState() As LightState
Get
Update()
Dim isOn As Boolean = (keyState(Keys.CapsLock) = 1)
Return IIf(isOn, LightState.On, LightState.Off)
End Get
End Property
Public Shared ReadOnly Property NumLockState() As LightState
Get
Update()
Dim isOn As Boolean = (keyState(Keys.NumLock) = 1)
Return IIf(isOn, LightState.On, LightState.Off)
End Get
End Property
Public Shared ReadOnly Property ScrollLockState() As LightState
Get
Update()
Dim isOn As Boolean = (keyState(Keys.Scroll) = 1)
Return IIf(isOn, LightState.On, LightState.Off)
End Get
End Property
End Class
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