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首先，我不是一个真正的编码器，但我很满意迄今为止所做的。允许全局热键
我已经写下了这个代码，这是与机器人技术。下面的代码允许我在单击表单时使用键盘快捷键。但是，无论应用程序是否处于焦点或甚至最小化状态，我都需要使用热键。
我已经看了网上，但它不是很清楚。
Public Class MainForm
Private Sub MainForm_KeyDown(sender As Object, e As KeyEventArgs) Handles Me.KeyDown
If (e.KeyCode And Not Keys.Modifiers) = Keys.T AndAlso e.Modifiers = Keys.Control Then
DF1Com1.Write("O:1/0", "1") ' (O:9/0) (R)
End If
'If e.KeyCode = Keys.R Then
'DF1Com1.Write("O:1/0", "1") ' (O:9/0) (R)
'End If
End Sub
Private Sub MainForm_KeyUp(sender As Object, e As KeyEventArgs) Handles Me.KeyUp
If (e.KeyCode And Not Keys.Modifiers) = Keys.T AndAlso e.Modifiers = Keys.Control Then
DF1Com1.Write("O:1/0", "0") ' (O:9/0) (R)
End If
'If e.KeyCode = Keys.R Then
'DF1Com1.Write("O:1/0", "0") ' (O:9/0) (R)
'End If
End Sub
Public Class MainForm
Private Sub MainForm_KeyDown(sender As Object, e As KeyEventArgs) Handles Me.KeyDown
If (e.KeyCode And Not Keys.Modifiers) = Keys.T AndAlso e.Modifiers = Keys.Control Then
DF1Com1.Write("O:1/0", "1") ' (O:9/0) (R)
End If
'If e.KeyCode = Keys.R Then
'DF1Com1.Write("O:1/0", "1") ' (O:9/0) (R)
'End If
End Sub
Private Sub MainForm_KeyUp(sender As Object, e As KeyEventArgs) Handles Me.KeyUp
If (e.KeyCode And Not Keys.Modifiers) = Keys.T AndAlso e.Modifiers = Keys.Control Then
DF1Com1.Write("O:1/0", "0") ' (O:9/0) (R)
End If
'If e.KeyCode = Keys.R Then
'DF1Com1.Write("O:1/0", "0") ' (O:9/0) (R)
'End If
End Sub
End Class
更新：
权。我已经添加了一个允许注册GlobalKey的类。
在我的主要形式，我现在有这个键：
Public Class MainForm
Dim hkr As New HotKeyRegistryClass(Me.Handle)
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
hkr.Register(HotKeyRegistryClass.Modifiers.MOD_CTRL, Keys.A).ToString()
hkr.Register(HotKeyRegistryClass.Modifiers.MOD_CTRL, Keys.S).ToString()
hkr.Register(HotKeyRegistryClass.Modifiers.MOD_CTRL, Keys.D).ToString()
hkr.Register(HotKeyRegistryClass.Modifiers.MOD_CTRL, Keys.F).ToString()
hkr.Register(HotKeyRegistryClass.Modifiers.MOD_CTRL, Keys.G).ToString()
hkr.Register(HotKeyRegistryClass.Modifiers.MOD_SHIFT Or HotKeyRegistryClass.Modifiers.MOD_CTRL, Keys.H).ToString()
End Sub
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If m.Msg = HotKeyRegistryClass.Messages.WM_HOTKEY Then 'NOT THE ACTUAL WINDOWS NAMESPACE
Dim ID As String = m.WParam.ToString()
Select Case ID
Case 0 : If DF1Com1.Write("O:1/0", "1") Then DF1Com1.Write("O:1/0", "0")
Case 1 : MessageBox.Show("S")
Case 2 : MessageBox.Show("D")
Case 3 : MessageBox.Show("F")
Case 4 : MessageBox.Show("G")
Case 5 : MessageBox.Show("H")
End Select
End If
MyBase.WndProc(m)
End Sub
如果你看看案例0。它可以工作，但它不会使钥匙备份。它一直压下来。我需要它的时候，关键是郁闷它DF1Com1.Write（ “O：1/0”， “0”）'
类代码
Public NotInheritable Class HotKeyRegistryClass
Private Declare Function RegisterHotKey Lib "user32.dll" (ByVal handle As IntPtr, ByVal id As Int32, ByVal fsModifier As Int32, ByVal vk As Int32) As Int32
Private Declare Function UnregisterHotKey Lib "user32.dll" (ByVal handle As IntPtr, ByVal id As Int32) As Int32
Private Handle As IntPtr = IntPtr.Zero
Private Registry As New System.Collections.Generic.List(Of Int32)
Public Enum Messages
[WM_HOTKEY] = &H312
End Enum
Public Enum Modifiers
[MOD_ALT] = &H1
[MOD_CTRL] = &H2
[MOD_SHIFT] = &H4
End Enum
Sub New(ByVal Handle As IntPtr)
Me.Handle = Handle
End Sub
Public Function Register(ByVal Modifier As Int32, ByVal Key As System.Windows.Forms.Keys) As Int32
Dim ret As Int32
ret = NextAvailableIndex()
Call RegisterHotKey(Me.Handle, ret, Modifier, Key)
Registry.Insert(ret, ret)
Return ret
End Function
Public Sub Unregister(ByVal ID As Int32)
Call UnregisterHotKey(Me.Handle, ID)
Registry.Remove(ID)
End Sub
Private Function NextAvailableIndex() As Int32
Dim ret As Int32 = 0
Dim n As Int32 = 0
For i As Int32 = 0 To Registry.Count - 1
If Registry(i) = n Then
n = n + 1
ElseIf n < Registry(i) Then
Return n
End If
Next
If n = Registry.Count Then
Return Registry.Count
End If
Return ret
End Function
End Class
查看'Windows.Input.Keyboard.GetKeyStates'，而不是捕获窗体上的关键事件，轮询计时器或后台线程中的键状态。 –
问这个问题。有点不公正。正如我所说的。我不是一个硬核编码器。 – Arthor
我已经更新了代码，我几乎是他们的。仍在继续，但我坚持最后一部分。 – Arthor