注册3个热键？可能？

Question

您好我正在尝试在VB.NET中使用RegisterHeyKeys但是我让它与2个热键一起使用我尝试添加第三个并且它给出了太多的参数.这可能是非常简单的事情,我也是一个小组,所以很容易.大声笑.任何帮助将不胜感激.

这是迄今为止的代码:

Public Const MOD_CONTROL As Integer = &H11
Public Const MOD_SHIFT As Integer = &H10
Public Const WM_HOTKEY As Integer = &H312

<DllImport("User32.dll")> _
Public Shared Function RegisterHotKey(ByVal hwnd As IntPtr, _
ByVal id As Integer, ByVal fsModifiers As Integer, _
ByVal vk As Integer) As Integer
End Function

<DllImport("User32.dll")> _
Public Shared Function UnregisterHotKey(ByVal hwnd As IntPtr, _
                    ByVal id As Integer) As Integer
End Function

Private Sub Form1_Load(ByVal sender As System.Object, _
                    ByVal e As System.EventArgs) Handles MyBase.Load
    RegisterHotKey(Me.Handle, 100, MOD_CONTROL, MOD_SHIFT, Keys.D2)
    RegisterHotKey(Me.Handle, 200, MOD_CONTROL, MOD_SHIFT, Keys.D3)
    RegisterHotKey(Me.Handle, 300, MOD_CONTROL, MOD_SHIFT, Keys.D4)
End Sub

Answer 1

我看到的问题是你添加了两个修饰符MOD_CONTROL并MOD_SHIFT用逗号分隔它们,说你有五个参数给函数,即使它只需要四个.像这样尝试Oring你的Modifers.您还应该使用看起来不正确的文档来验证修改键.

Private Sub Form1_Load(ByVal sender As System.Object, _
                    ByVal e As System.EventArgs) Handles MyBase.Load
    RegisterHotKey(Me.Handle, 100, MOD_CONTROL Or MOD_SHIFT, Keys.D2)
    RegisterHotKey(Me.Handle, 200, MOD_CONTROL Or MOD_SHIFT, Keys.D3)
    RegisterHotKey(Me.Handle, 300, MOD_CONTROL Or MOD_SHIFT, Keys.D4)
End Sub

从它所述的文件(强调我的):

fsModifiers [in]
类型:UINT

必须与uVirtKey参数指定的键组合按下的键才能生成WM_HOTKEY消息.fsModifiers参数可以是以下值的组合.

   Value                        Meaning

MOD_ALT 0x0001         Either ALT key must be held down.

MOD_CONTROL 0x0002     Either CTRL key must be held down.

MOD_NOREPEAT 0x4000   Changes the hotkey behavior so that the keyboard auto-repeat does not yield multiple hotkey notifications. 
                      Windows Vista and Windows XP/2000:  This flag is not supported.
MOD_SHIFT 0x0004      Either SHIFT key must be held down.

MOD_WIN 0x0008        Either WINDOWS key was held down. These keys are labeled with the Windows logo. Keyboard shortcuts
                      that involve the WINDOWS key are reserved for use by the operating system

这是您的程序的工作示例.

Public Const MOD_CONTROL As Integer = &H2
Public Const MOD_SHIFT As Integer = &H4
Public Const WM_HOTKEY As Integer = &H312

<DllImport("User32.dll")> _
Public Shared Function RegisterHotKey(ByVal hwnd As IntPtr, _
                                      ByVal id As Integer, ByVal fsModifiers As Integer, _
                                      ByVal vk As Integer) As Integer
End Function

<DllImport("User32.dll")> _
Public Shared Function UnregisterHotKey(ByVal hwnd As IntPtr, _
                ByVal id As Integer) As Integer
End Function

Private Sub Form1_Load(ByVal sender As System.Object, _
                    ByVal e As System.EventArgs) Handles MyBase.Load
    RegisterHotKey(Me.Handle, 100, MOD_CONTROL Or MOD_SHIFT, Keys.D2)
    RegisterHotKey(Me.Handle, 200, MOD_CONTROL Or MOD_SHIFT, Keys.D3)
    RegisterHotKey(Me.Handle, 300, MOD_CONTROL Or MOD_SHIFT, Keys.D4)
End Sub

Protected Overrides Sub DefWndProc(ByRef m As System.Windows.Forms.Message)
    MyBase.DefWndProc(m)
    If m.Msg = WM_HOTKEY Then
        Select Case CType(m.WParam, Integer)
            Case 100
                NotifyIcon1.Text = "Hello"
                NotifyIcon1.ShowBalloonTip(2000, "", NotifyIcon1.Text, ToolTipIcon.Info)
            Case 200
                NotifyIcon1.Text = "World"
                NotifyIcon1.ShowBalloonTip(2000, "", NotifyIcon1.Text, ToolTipIcon.Info)
            Case 300
                NotifyIcon1.Visible = False
                If Not Visible Then Visible = True
        End Select
    End If
End Sub

Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
    Me.Hide()
    NotifyIcon1.Icon = Me.Icon
    NotifyIcon1.Visible = True
End Sub